William E. Hearn
Contents
1. BU Hern 4 1468 Rey 4 73 75 PESSA r A eee A E SMES EAB VIDEO LAB Monue A 2 ia 56 18 Hous E 1 Non 6 NOUS CONTROL RAMPS OT Mo SouacE BUFFERED CONTROL POS XU x 86 ko 1 VERT N KEY CONTROL SORE La e KEY CO CONTROL SOURCE E gt nS rA KEY EDGE e KEY ON BANANA SS Se Har He oD postura CHK OR Dia Heg m QUAD TRISTABLE LOGIC SOURCE DUAL LOGE UNIT 59 e 036 Pen Q9 ec 0 eG C ot DO 20 ee eo 9 eo o Wow jaa ee EET A Me re ee DeL te ret oS i 5 2 be CU ha F PZD Stew Moers ALL MK Cope CODEN AS TD FONCTION LINEAR KEY MAT RAM 1 E 1 5 Qa EFFECTS AAP QQE C2 6 e e O e O C O 6 c A O 68 9 4x u N 273 6 5 Q O e O 3 C 5 9 o o 0 5 D VIDEOL AR LS 1 L T L O The EAB Videolab is usually Installed by EAR personnel iT difTTiculties arise In the installation of your unit call EAL in Berkeley Ca at2. Connect the background video to the B input This image will appear in the keyed in areas of the main image An auxilliary image from another source which is vert ically synchronized may be connected to the AUX input This image may be switched by means of the front panel switcher controls This input is not used in studio applications and is offered as an accessory feature External sync and subcarrier signals may be connected If your Lever does not have the EXT SC PHASE TRIM option then an external phase shifter will be required OUTPUT CONNECTIONS The A B A B and SWITCHED outputs may all be connected to the inputs of a master switcher or to a video syrithesizer such as the EAB Module E The 601 nay act as its own switcher The SWITCHED output offers a choice of both original images the keyed image and a fourth auxilliary imege Ae Be C Ae 1 ta HOW TO USE THE 601 KEYER cont IMAGE QUALITY It is vitally important for acceptable keying that the 601 receive a good quality image at the A input The 601 incorporates advanced circuitry including both horizontal and vertical comb filtering and will give good results on a variety of sources l Many video sources produce video with chroma far below NTSC levels Off air and tape sources often suffer from this defect All 601 Chroma Keyers are set up using a standard NTSC color source Tektronix 146 T
3. 2 EAB requests that our customers not make unauthorized adjustments to the internal circuitry of Soy Doc x aed nn fee aps Videolabz as it volds the warranty GENERAL INFORMAT I OW FOWER CONNECTONS The EAB Videolab consumes 250 Watts Maximum at input power voltages of 1107 150 50 60 Herz It is the customer s responsibility to provide for Mains stabilizing within these limitz The Videolab is powered by eight regulated power supplies These supplies are located in the A module The Power connection to the B module is made by means of the multi pin cable connecting the two modules SIGNAL CONNECTIONS All external connections to the Videolab must be made to the rear panel The Videolab accepts up to six standard video signals at inputs 1 6 and outputs three composite outputs at the connectors marked 1 2 and MAIN If the videolab is to be used in the genlock mode the video input to channel 1 must contain the sync and burst components Oni some models RGB outputs are provided on the rear panel from the colorizer section These outputs are i voit 75 ohm non composite without burst i Signal Connections to the front panels of the modules are to be made only to other Videolab modules and only with the EAB patchcords provided description of patching techniques is found
4. 4 92 MON 2 5 5 ELECTRONICS DEPARTMENT P Sal Pre LBL employment Cinemix Corporation Berkeley 1972 1973 As Vice President designed and produced experimental computer controlled film special effects instruments for commercial applications Ihe Exploratorium SanFrancisco 197171973 As Head Technical Curator of the Exploratorium and working under the direction of Dr Frank Oppenheimer designed and produced exhibits illustrating scientific principles and exploring the ways in which human beings perceive the world Was responsible for developing most exhibits in the first vears of this institution Raytheon Corporation Mt View Va 1971 1972 While a Senior Circuit Development Engineer assisted staff in the development of linear integrated circuits Designed a Successful Dual Tracking Voltage Regulator IC Signetics Corporation Sunnyvale Ca 11968 1971 As Applications Engineer worked with clients throughout the U S on applications of both Linear and Digital Integrated Circuits As Circuit Development Engineer Designed several successful IC s which are still commercially available today Designed the 531 Fast Slewing Operational Amplifier and the 7520 series of high speed 15 nanosecond sense amplifiorc which were the genesis of the NE527 529 high speed comparators and their copy the National Semiconductor LM360 still the fastest comparator available GMR Berkeley a subsidiary of Baus
5. Physics amp Astronomy Dept els that have used Some technical The California State University 05 29 92 15 25 3408 432 9226 CHIPS GRAPHICS THE VASULKAS INC 5 CHI Chips and Technologies Inc FACSIMILE TRANSMITTAL FROM THE MEDIA GROUP GRAPHICS MULTIMEDIA ACCELERATORS d 0 je 5 n vno 7 COMPANY Vasyl ue suBJEc l ena rt FAX 4T 06 7 FROM JEE SCAER CC TOTAL NUMBER OF PAGES INCLUDING COVER SHEET COMMENTS THE ve v TN 6 E AvE eia Cam Mave it s o wT P VT 7 r TECE amp amp tL LILL LECTOR TA Swit put Ta ITS cu cepit Tuas 9 e EE eur TO sence TE Esc EE 5 STEP TEN vocrA gt 7 fem EAL p mK Eee qre adi IF YOU DO NOT RECEIVE ALL PAGES CALL BACK AS SOON AS POSSIBLE PHONE 408 434 0600 EXT 5545 FAX 408 432 9226 Chips and Technologies Inc 3050 Zanker Road San Jose CA 95134 408 434 0600 ae rrer ai seu mA m In co Pe DOWD i 2cHaM a eon ee
6. Sony vortaseck cemeres by means of genlock 36 light emitting diodes on front panel provide readout of chennel selection channel selecting menually or by voltage control with front penel p etching 2 key Matte generetor utilizes function generators locked to horizontal end vertical scan rates utilizes petching of contol signels between compzretore end logic elements allows for a virtually unlimited variety of keys mattes end wipes by means of internal or external mculetion of control signals vrovices switching logic levels for 6x6 matrix 3 Colorizer 4 n Livices grey yc le into four b nds io l 7 provides for control of Fue Caturetion Grey end video level within each band te fa FTN X lt obe y video im ges can be KEYyeG into eny bend 4 all functions operc ted both by controls on front panel and by voltage control LAB VIDEOLAR modules ere professionel quelity ond are supplied in rack mount cabinets The price of the VIDEOLAB I is 2250 Terms recuired are 1 3 down enc net on delivery end the delivery time is 00 cays from receipt of order unless otherwise srrenged For informstion ebout our products call Lar 1624 Harmon St Serkeler CA 94703 415 554 1796 E Nix uis gl x Saas A RR DU noc ua rg sog NS dna sgh u 1T FR N CELA Pane aw
7. Video Output Level Matching Video Flatness Video Delay Video Delay Matching Keying Range Key Position Adjustment Connectors Operating Temperature Range Input Power PRICES b 601 Chroma Keyer Option A Ext Key DISTRIBUTOR Adwar Video 100 Fifth Avenue arec L E ELIE TIOE aap rk at p S enim esa 4 822 MET e HET 4 nc 2940 Grove Street Berkeley California 94703 415 848 6121 lt e KEVER 6Ole VERTICAL INTERVAL SWITCHER amp 1 D QO O 9 B A s AUX PL 7 mr pee em a Paire M ana or Lar c M Ee n MM emm TR Tu APR 20 92 23 39 DOSCHIER P el Flr sf Pas VIDIUM TXT Tuesday April 21 1992 12 34 am Page 1 VIDIUM 4 20 92 Jeff Schier The Vidium MK II was a hybrid analog synthesizer which acted as a hyper Lissajous pattern generator As recounted by Larry Shaw The basic Lissajous pattern name after the French Physicist Jules A Lissajous consist of a circle formed driving an X Y display or oscilloscope set to XY mode with two sin e waves With the X axis in phase and the Y axis out of phase 8 shape is seen on the display If the phase shift is 90 degrees a circle is formed 45 degrees an ellipse and O degrees a diagonal precise phase shifting and modulation signals elaborate shapes could be formed These were expansion
8. in the EAB Videoclab Users Manual provided with each unit SYNC AND TIMING CONNECTIONS External Sync and Subcarrier inputs are available on the rear panel of the unit and are automatically activated when driven If these inputs are utilized the sync and burst components of all six input signals is ignored A 260 degree phase shift control is provided for subcarrier phasing MN d SYNC AND TIMING CONNECTIONS CONT Six genlock drive outputs are provided for the convenience of The Videolab user These are HD horiz drive CS comp sync VD vert drive LB composite Blanking SC subcarrier drive and BF burst flag All are standard levels INIT IAL TEST If desired the user may verify operation of his Videolab Although the flexibliity of the Videolab permits many modes of operation the following simple steps will allow the user to verify its basic operation 1 Connect a suitable composite or non composite video signal to channel 1 on the rear panel 2 Connect external sync and subcarrier drive signals 2 Connect a Color monitor to the Main output 4 Refer to the Videolab User s Manual number of simple effects may be done with a single channel Apr 12 1986 TO ALL VIDEOLAB SERIES 2 OWNERS IMPORTANT NOTICE Some EAB Videolab series 2 A B Modules have power supplies that may lose regulation under certain conditions of ambient temperature and AC line voltage The symptom is t
9. my patent and then he died I never would have been able te do what I did if Al had lived That s the funny part of it He died of a heart attack at the beginning of the project and the money was in the bank and I went ahead and built this thing Through EAT I met a number of budding electronic music composers I helped them build music synthesizers and when I developed the Vidium they found that it was a really sympathetic way of producing images directly from their signals to get a visual synthesis of what they were doing sonically Don Buchla came by for a few meetings and I think David Tudor was very interested in it Don Buchla was the strongest influence I ever had in terms of the way he did things If you look at this you ll see that it s very similar to his synthesizers in the philosophy of what it does control voltages logic voltages signal voltages and unshielded banana jacks so that you can stack them which makes the flow much simpler I think technically you can say that this machine could have been designed by Don Buchla I had never been interested in television until around the time when I met you The people at Video Free America in Berkeley asked me to make a colorizer for them Arthur Ginsberg Skip Sweeney and Alan Shulman They showed me that they had a colorizer but when they opened it up all the parts fell out It was a little thing in a gray box about this big and it cost 800 It had two knobs on it and mad
10. the ARS ELECTRONICA exhibition have somewhat different dimensions than the ones given by Mr Hearn for the VIDIUM 21 72 10 est 80 18 with attached base board The IRV IRV values are somewhat in the eye of the beholder As an appraiser you are the expert in this regard The unit is functioning at least the four or five chann knowledge is required would pay attention to the grounding and polarity and so on when adapting the power transformer The unit is attached to a plywood base that is noted in the depth dimension This base could function as a stand if it were painted and had legs attached to it It is presently sitting on a lab bench Please see enclosed photograph have taken the liberty of including the Laser Affiliates 10 year catalog We are a group of laser performance artists that have produced visual art performances and holography exhibitions in the Bay Area for some time We also have a videotape compiled of performance segments that captures more of the kinetic nature of these events If you are interested can send a copy In the development of theseevents have made devices very similar to the VIDIUM for generating laser graphics We also have a computer generated animation system not depicted in the catalog will look forward to meeting Pavel and Woody on March 28 am excited that other people will be able to enjoy this unique instrument Steve Anderson Equipment Tech III Sonoma State U
11. voltage sequencer The sequenced voltage source has six controllable steps each gating on 10 voltages the voltages set by ten turn potentiometers located on the left half of the rack This six by ten matrix of voltages were interconnected by Pomona Stacking Banana Plug cords to other modules located on the right half of the rack Commonly the sequencer was wired in tandem the first module triggered the second module etc till the sixth sequencer step was triggered An oscillator at the front end could start up the chain f events Each step had its own time delay 8 monostable multivibrator and a light bulb to indicate it had triggered Text labels of OSC START SEQ OUT a level mimicking the state of the sequence and EOS end of s quence to wire to the next module Control voltages were available on colored banana jacks with RED representing analog outputs BLUE for analog inputs BLACK for digital inputs bi level signals on or off and WHITE for digital outputs The output signals had a Wired Or property allowing wiring multiple outputs together with the lower voltage being the victor Analog voltages could also be bare collector wired the lower voltage winning out if tied together The pattern generator side was built to form the basic sinewave and phase shifted sinewaves The modules consisted of oscillator frequency sources and processing modules Multiple oscillators were present
12. 950 suuuch a deeeal Keep this offer to yourself please I am not offering it to anyone else It was nice to talk you Etra s back in town God knows what he s up to Thanks so much for the agreeing to send the letter about Videolabs Say hello to Voody and Eve and let s be in touch soon LOVE BILL HEARN 2940 Martin Luther King jr Way Berkeley California 94703 415 848 6121 MAY 4 92 MON 3 54 ELECTRONICS DEPARTMENT P i 1 William E Hearn Staff Scientist Engineer Level III Electronics Engineering Department Lawrence Berkeley Laboratory University of California DOE Q no CA 56409 Education B S E E U C Berkeley 1966 A Electronics Technology CCSF 1959 R P E E State of California License no 12246 M Professional Experience Summary Employed as Electronics Engineer at LBL in Accelerator and Fusion Research Division since 1973 Most recent assignment was as Project Electronics Engineer of EBIT a successful joint LBL LLL project and IR100 award winner CURRICULUM VITAE M CEN As an Electronic Circuit Design Engineer has made significant contributions to the success of numerous LBL projects v 7 Strong skills in many areas of Digital and Analog Circuit Design Compu
13. APR 29 92 23 40 DOSCHIER P 82 VIDIUM TXT Tuesday April 21 1992 12 34 am Page 2 including a voltage controlled function generator The allowed voltage control of frequency and phase as well as a sync input The output generated a collection of waveforms triangle square sawtooth and sine A digital version of a trigger out and a waveform triggered indicator logic out are available on separate jacks A more elaborate version was proposed to allow a voltage control of waveform shape the input voltage would shift the output waveform from sine through triangle to square Another signal source was an envelope generator A trigger pulse ENV START started a pulse output and ENV STOP turned off the pulse The rise fall time of this pulse was voltage controlled and digital r i t 1 outputs indicated the envelope had triggered The envelope pulse would later be combined with the main oscillators to smoothly qualify the xd underlying waveform Closely tied to the idea of Lissajous pattern generation is the need for controlled phase shift of the sine wave signal A modified filter circuit with an operating frequency around 1KHZ was constructed with inverting and non inverting inputs The control input progressively shifted the phase of the input signals in response to the control voltage E For processing of waveforms a Voltage Controlled DC coupled Amplifier E present acting as a two quadrant multipli
14. R OTHER A FOREGROUND DELAYED ALL 75 OHN TERMINATED B BACKGROUND DELAYED A B KEYED VIDEO DELAYED EXTERNAL SINC DRIVE INPUT ACCEPTS COMPOSITE SYNC DRIVE SWITCHED A B A B AUX ALL 75 OHM youn EXT DRIVE SWITCHES gt RA g EAB NIDE LAB CHROMA KEYER 60 Yay EDot Posities VERTICAL INTERVAL SWrICUER e e e i c o X VAL SWITCHER SETS COLOR OF CHROMA KEY SELECTS BETWEEN A B AUX AND KEYED VIDEO VIDEO APPEARS ON SW 2 MATCHES STANDARD SWITCHED OUTPU N 2 5 0 VECTORSCOPE REY POSITION INDEPENDENTLY ADJUSTS LEFT AND RIGHT EDGES SETS PERMISSIBLE RANGE OF CHROMA KEY OF BRIGHTNESS POR CHROMA KEY THE VASULKAS INC 100 ROUTE 6 SANTA FE NEW MEXICO 87501 TEL 505 471 7181 FAX 505 473 0614 March 31 1992 Steve Anderson m Bill Hearn 1801 East Cotati 2940 Martin Luther King Way Sonoma State University Berkeley CA 94703 Rohnert Park CA 94928 Dear Steven Anderson and Bill Hearn We want to thank you for considering our request to borrow the VIDIUM for the exhibition that we are curating for the ARS ELECTRONICA Festival in Linz Austria I am sending a copy of a letter that confirms the Austrians intention to return the instruments after the exhibition We are writing to both of you concerning this loan Based upon recent telephone conversations it is our understanding that the VIDIUM is the property of Bill Hearn that has been on extended loan to Sonoma State Unive
15. RRIER SYNC A B VIDEO DRIVE DRIVE ___ GENERATOR ELE B SWITCHED CHROMA EXT KEY OUT OUT OUT KEYED OUT 7 OPTIONAL The EAB 601 Adwar CK 3 Chroma Keyer is versatile and easy to use It has three video inputs and four video outputs It will either genlock or accept external drive signals It has no color shift A vertical interval switcher is built in for convenience The AUX input is useful for certain non critical switching applications An optional External Key output is offered for use with a downstream switcher where required Option A NTSC Encoded Composite Non composite NTSC Encoded Composite Non composite Monochrome Non composite Composite Sync and 1 Volt at 75 ohms 1 Volt at 75 ohms 2 5 0 7 Volt at 75 ohms 3 5 Volt at 75 ohms timed to input 1 Volt min at 75 ohms timed to input 0 5 db 0 0 0 2 db to 5 mhz 2 8 c cycles 559 ns 3 n sec all outputs Hue 360 50 n sec left and right edges BNC 9 6 0 C to 55 C 105 130 Volts AC 20 Watts 2 500 00 125 00 N Y 10011 2940 Grove Street Berkeley California 94703 415 848 6121 VIDEO SPECIFICATIONS EAB 601 ADWAR CK 3 Encoded Chroma Keyer Video Inputs Video Outputs External Key Output Option A Drive Inputs Video Input Levels Video utpat Levels Ext Key Output Level Option A Sync Drive Level Subcarrier Level
16. William E Hearn April 12 1986 Woody and Steina Vasulka P O Box 100 Santa Fe N M 87501 Dear Steina Enclosed is the notice I am sending out to Videolab owners am sure that it will solve the problem with Eve Muir s instrument I would like to help you with any of your requirements I understand your wish for individual stand alone modules Keyers for instance If you want I could make some custom modules of any type for you I have learned a few things since I designed the Videolab Right now today I can offer you the following 1 I have a Series 2 Videolab like Eve s which I can offer you for 4900 It will have the additional feature of voltage control on the pattern generator oscillators the only other one with this feature belongs to Ernie Gussella For an additional 900 00 you can have a copy of a new module which I developed after I did some live performances a Pattern Source Mixer and Controller It gives precision control over patterns and allows modulation of patterns with sound these are not cheap I thought I d just mention them 2 I have a used Series 1 Videolab of the most recent type with a new input board locks to anything even 4th generation 1 2 inch stuff This has the Colorizer that you like and comes with surprise a User s Manual which is free of errors also with full schematics With the latest modifications it will pass color nicely I will reluctantly part with it for 1
17. ch and Lomb 1966 1968 As Electronics Engineer adapted the optoelectronic precision measuring system produced by this firm to the then newly developed integrated circuit technology Developed improvements to the basic system electronics which allowed the system to achieve submicron precision when measuring over one meter distances Nuclear Research Instruments Berkeley 1962 1968 As Electronic technician Draftsman and finally Project Electronics Engineer participated in the production of Measuring Projectors and Measuring Microscopes These instruments were used in Nuclear Research and in the analysis of Aerial Photographs Bill Hearn I was a curator at the Exploratorium and I had designed a really large console that made complex color lissajous patterns multiple locked oscillators and pseudo three dimensional shapes I always thought they were quite beautiful They had been used in a couple of different applications but I made a large console that would generate great families of them I got the idea from somebody else in New York who had done it long before me I saw what he had done I improved the deflection amplifiers to give a really good response and I developed a system of color modulation which I have a patent on It painted color on the surface according to the convolution of the surface The monochromatic versions were beautiful very lacy and sharp They had a very sharp trace on the e
18. e a smeary color I said we can do better than that At that point I evolved the concept of the zone colorizer to cut the gray scale into segments What I really lust after is to make machines that are so clear to a creative person and gives them so many possibilities that they can use them It just gives me a terrific thrill when I see someone like Ernie Gusella in New York who s doing truly creative work with the Videolab 2940 Grove Street Berkeley California 94703 415 848 6121 VIDEO EAB 601 ADWAR CK 3 Encoded Chroma Kever The 601 CK 3 Encoded Chroma Keyer is a very high performance highly versatile moderate cost unit It offers more features than other Keyers and includes a built in vertical interval switcher for previewing The 601 CK 3 is used very effectively in both upstream and downstream applications FEATURES Zero Color Shift Dual Delay Lines Four Outputs B KEY and Switched Three Inputs A B and Auxilliary Dual Comb Filters for highest resolution Variable Highlight Key Inhibit Joystick Keying based on Vectorscope pattern Independent Left and Right Key edge position controls External Drive and Genlock All features are standard Delay lines are highest quality discrete lumped type and are designed so that the 601 CK 3 will pass a Tektronix 146 color bar signal with negligible distortion 1 1 aa DESCRIPTION BLOCK DIAGRAM VIDEO VIDEO AUX SUBCA
19. er with a summing input stage The amplifier summed multiple inputs together while the voltage control input attenuated the summed result and sent them to output The control could come from the envelope generator the sequencer voltage or the oscillator waveform Output In 1 In 2 Control A precision Four quadrant multiplier with two sets of inputs an A and B with a inverting and non inverting polarities were used to modulate the oscillator waveforms Output IN A1 In A2 In B1 In B2 This four quadrants allowed both attenuation and inverting of input waveforms The combination of the Voltage controlled summing AMPs ith the Four quadrant multipliers and phase shifters allowed multiple jscillators envelopes and knob controlled voltages to be combined into curious patterns of X and Y signals The hue shifts were closely inked to the pattern drawn by the X and Y waveforms forming the unique _ interlocked VIDIUM Lissajous surfaces ELECTRONIC ASSOCIATES OF BERKELEY 5 j 1624 HARMON ST BERKELEY CALIF 94703 NN 415 55465 1735 EAB VIDEOLABTI The EAB Videoleb I is amp video system composed of amp metrix switcher genlock key mette wipe generator and four level colorizer The system utilizes voltage control for extreme operationel flexibility VILEOLAB I SYSTEM ELEMENTS l Mstrix switcher genlock 6 inouts 6 outputs completely DC restored provides sync nc over for 3
20. he appearance of horizontal bands in the picture and unstable operation Repair of this condition is very simple and we reccomend that all all owners of Series 2 videolabs have this simple fix done EAB will do it for you at no charge or you may have it done by a qualified technician Please be careful and follow the TN alins i ums Mo ie e PROG U gt 1 Disconnect all A C power by unplugging the A module Disconnect the B module and set it aside You will work on the A Module only 2 Remove the A Module top and remove the five screws holding the A Module back panel in place Gently allow the A Module back panel to pivot back on its lower edge so that it is laying on the bench 3 At the lower left of the rear panel is the power transformer on the left hand side of the power transformer the primary side the terminals are marked with the numbers 1 through 7 Remove unsolder all wires from these terminals including any jumpers Do not disturb the secondary connections 8 through 11 4 You will now have two free wires coming from the rear panel One wire comes directly from the A C cord and the other comes from the fuse Solder these two free wires to terminals 1 and 2 of the transformer primary 5 To double check your work you can measure the unregulated D C Voltage at the transformer secondary before reassembling the module To do this first locate the small terminal strip directly to the left of the ho
21. he minimum level of chroma for good quality keying is set to be 30 of the burst amplitude or about 12 IRE units Blue backgrounds will often not produce the minimum amount of signal for chroma keying unless the material is carefully chosen Pale blue backgrounds for example are extremely ineffici nt A well lit strongly satur ated background gives best results Use of a waveform monitor or EAB 800 Vectorscope is suggested The 601 may be readjusted to key at lower than standard levels although the key quality may suffer Contact EAB for details Ae Be C D 5 HOW TO USE THE 601 KEYER cont OPERATION OF CHROMA KEYER CONTROLS Start with 1 Chroma Joystick set at center 2 Luminance control counter clockwise 3 Key edge position controls set at 5 4 Monitor observing A B output Using the joystick locate the correct angle and minimum displacement of the joystick to produce the required key Advance the luminance control to inhibit highlight keying Adjust key edge position to give best left and right key edges Readjust controls as necessary Ae B C D 4 AP Ten 7 2 RE 7 DOSES ne 601Encoded Chroma Keyer and Controls IX SIC INPUIS OPTIONAL YIDEO INPUTS A FOREGROUND B BACKGROUND VIDEO UTS EXTERNAL SUBCARRIER DRIVE INPUT ACCEPTS EXTERNAL 3 58mhs AUX TAPE O
22. lectromagnetic CRT And if you can deflect the beam which is very difficult you can get beautiful patterns from voice or recorded music For color the basic trick is that the color is a function of the velocity of the trace as it moves on the screen As the trace moves the color stretches toward the red end of the spectrum You know what the spectrum looks like It starts at red and goes through orange yellow green blue and then violet I assigned colors according to the actual velocity of the trace on the screen I had circuits which could measure the velocity and change the color of the dot as it was moving In doing that it made the contours of the image stand out in a really interesting way It s been many years since I ve done a thing on it because it was such a dead end I found that it was quite interesting and beautiful but it had no commercial application People in special effects film or adv rtising all have very tried and true techniques that they stick to They don t want anybody coming in and disturbing their nice game I paid for all of it myself up to the point where I got some exposure and a very wonderful man named Al Leavitt here in San Francisco who later turned out to be a kind of pain in the ass saw it He loved it and he said we should exploit this I said fine and he made a contract with me through negotiations with my attorney We formed the Color Communications Corporation Al put in 30 000 and I put in
23. n bead Fader Lampen and Color Sound Qptic Telemetry using Digital Touch Cori Visual Display of Complex U S Patent no Voltmeter Hearn 4518887 Rondeau 14 Precision 1985 U S Patent Hearn 1974 no f U S Patent Wave Signals no 3627912 Hearn 1970 Publications Hearn W E Wideband Analog Fiber Techniques IEEE Transactions on Nuciear Science 1984 Hearn W E Green M I Nelson D L and Rondeau D J Precision Bipolar Converter EEE Transactions on Nuclear Science 1982 e Hearn W E Complete Phase Lock Loop from part of Quad Gate Electronic Design Magazine April 1 1975 Hearn W E Applications of the SE 531 Fast Slewing Operational June 1974 Electronic perational Amplifier Feb 1971 Compensation of the an Meno September r 1969 on of the 5709 Signetics A Simple Linear Interrated Circuit Curve Tracer September 1969 Note Applications for Fast Slewing Op Amps Fast Slewing Monod i this e W Frequency Amplifier Hearn W E Products Magazine June Signetics Application lt 1 1971 Hearn W E IEEE Solid State Circuits Journal Seymour R and Hearn 515 Revised Hearn W E Frequency Compensatuij Application Memo September 19869 W E Signetics Applicati Heaxn W E Signetics Application Memo MAY eY
24. nt Values Please review and correct if necessary then return to us by mail or fax As I have indicated above ARS ELECTRONICA has promised to return the VIDIUM soon after the end of the exhibition Please note that I need two different Insurance Replacement Values For shipment within the U S and for the shipment to Austria after David Muller has completely reviewed the instrument and restored it As a certified appraiser with the American Society of Fine Arts it is my opinion that for shipment to Austria VADIUM should be valued at a higher rate based upon the following characteristics full restoration inclusion in a highly regarded international festival and documentation in the museum exhibition catalogue Please be assured that from our date of pick up until May 4 VIDIUM will be insured on the Vasulkas Inc policy Charter Insurance when we receive an apposite amount from you Also enclosed is a more narrative description of the exhibition that we completed recently to give you a little clearer idea of the exhibition We look forward to hearing from you Regards E MaLin Wilson Coordinator SONOMA STATE UNIVERSITY Rohnert Park California 94928 Department of Physics and Astronomy 707 664 2119 4 8 92 The Vasulkas Inc 100 Route 6 Santa Fe NM 87501 VEAC ial 12 Mr MaLin Wilson Thank you for the letter describing the terms of the loan of the VIDIUM for
25. of the Source Electronics Designed all CAMAC Fiber Optic Telemetry for control and monitoring of Ion Sources Designed and tested the Precision Feedback Stabilization Electronics for the amp Million Volt Power Supply and the associated Computer Interface This project was completed and is operated hy E division LLNL Magnetic Fusion Experiment 1981 1985 Ap in Ee er As an Electronic Engineer in the MFE group was responsitle for the design and development of precision instrumentation for testing of Ion Sources for Fusion Development Designed the high speed Digital and Analog Fiber Optic Telemetry used in all MFE test stands and for the testing of LBL lon sources for TFTA This Analog Telemetry utilizes high speed serial digital encsding to achieve improved performance and exceptional stablilty Developed Computerized Real Time Diagnostic System for icn source Test Stand no 2 utilizing Hewlett Packard 9845E Computer Wrote complete user friendly software including custom grapr zs for rapid digitising and display of e VOS parame Ceres wo veloped other software during this time usicn H P 200 series ang H P BS computers equipped with GPIO and GEIR tunes Designed Linear Screen Modulator unit for 150kw Pulsed RF power supply used in Test Stand 2 System used solid state drive electronics optically coupled to 1 4CW2000 water cooled tetrodes Real Time Systems 1981 As Electronic
26. rizontal slot cut in the back panel Plug the A module into the A C Line do not reconnect the B module Using a DC voltmeter measure the upper terminal on this terminal strip with respect to the rear panel ground This reading should lie between 18 and 21 volts Unplug the module If your readings were not correct call the number listed below before going any further 6 Reassemble the A Module The entire Videolab is now ready for use If you wish further assistance please call E A B VIDEO William Hearn R P E E 415 848 6121 2940 M L King jr Way Berkeley Ca 94703 late 4 705 version out Hearn Malti level Ke yal Vide EAB R Y 6 9 ea coder encecley encoder p P aw PN P a ke err T 3 v 4 CCK C Car but ten Ves A D Memory 4 Video IN Our a Sync Addres Gene E E WA Z L f 3 ete 4 4 1 E f s 7 B ala PX y f 5 5 s v 5 Qr ra Save ELECTRONIC ASSOCIATES OF BERKELEY ELECTRONIC DESIGN AND DEVELOPMENT 2940 GROVE ST BERKELEY CALIF 94703 415 848 6121 HOW TO USE THE 601 KEYER INPUT CONNECTIONS Connect the main camera to input A If this signal is composite video and genlock operation is desired the EXT DRIVE switches are set up
27. rsity Woody is planning amp trip to the Bay Area Monday April 13 and Tuesday April 14 regarding the documentation restoration and preparation of the instrument for exhibition David Muller of the University of Iowa is the technician working on this project David will be preparing all of the equipment for the exhibition and be on site in Germany for the installation and during the exhibition as will the Vasulkas The Vasulkas and David Muller will oversee all handling of the equipment Although we cannot offer you a fee for the installation we can offer Woody and David s expertise and services as well as inclusion in this international festival with a full color catalogue In addition to highly skilled technical restoration we are offering very personal shipping attention As I mentioned Woody s nephew Pavel Skryja will meet Woody in San Francisco with a truck and drive the instrument to Iowa City We hope our proposed dates will not be inconvenient for you The Austrians are picking up all the instruments and additional equipment in Iowa City on May 4th However in addition to confirming the loan I also need basic information for our insurance and packing plans approximate size weight and an insurance value For your convenience I have enclosed a packing sheet of the preliminary Wilson to Anderson and Hearn 3 31 92 page 2 of 2 information I was given by telephone and have included suggested Insurance Replaceme
28. s Engineer for RTSG developed ultra accurate Computer Programmable Bipolar V t converter for Magnetic Measurements Group at LBL The performance of this uniz still surpasses commercially available V f s and it has proved essential to the work of the Magnetic Measurements group LBL has built many of these for other laboratories A Patent for this circuit was issued to W Hearn and D Rondeau in 1985 Heavy Ion Linear Accelerator SuperHilac 1973 1980 As Electronic Engineer at Hilac was responsible for much of the instrumentation and the control system of the accelerator Designed and developed highly noise resistant I O circuitry for Modcomp control computer Designed Magnet Power Supplies Beam line diagnostics and related testing equipment Designec Vector Display displaying simultaneously the amplitude and phase of the ten 70 mhz power RF sources used in the accelerator Designed the Control System for the 3UZkv siecond injector This major effort utilized automatic tuning of the RF power stage and BV stabilization using a Generating Voltmeter and multiple feedback loops Designed all SuperHILAC Fiber Optic Telemetry YY 4 9o2 MON 9 56 ELECTRONICS DEPARTMENT od Professional Activities Member I E E E Member A E Awards and Honors Winner of Electronic Design Magazine National Award for Best Circuit Design Idea of 1976 Patents Issued Wade inito input Stage for Precisio
29. s on the classic circle and line By driving each axis with its own oscillator with a i figure eight pattern to form harmonically pinched doughnuts and vector textures of slowly changing form Programmable waveforms of sinewaves shifting to triangle waves then square were applied to form sinuous curves and boundaries A modified color television was used for the X Y display with the deflection yoke replaced with a new yoke driven from audio amplifiers The audio amp was in turn driven from the main analog waveform generator rack Color was added by wiring to the color hue control forming a voltage controlled phase shifter wrapping in phase 540 degrees of the normal 360 degree hue space Color saturation and brightness were set by the TV s front panel controls A special analog velocity position detector calculated the square root of X squared plus Y squared deflection signals that fed the color hue shifter A threshold detector blanked the beam if the X and Y settled to zero a dot in the center of the Screen The hue shifter allowed drawing of textural surfaces in smoothly changing colors The hue shift tracked the shapas automatically The main control box consist of two 3 feet by 3 feet racks mounted side by side The left side contained the voltage sequencer outputs with 60 multi turn knobs while the right side contained the control and signal processing modules The main control of the synthesizer was from an analog
30. ter Interfaces Control Systems Optoelectronics Video Telemetry Fast to D D to A Converters Precision Analog Signal Processing and High Voltage Power Supplies A specialist in the use of all types of Integrated Circuits in electronic hardware Has designed several succesful Integrated Circuits Has significant software design skills Major LBL work i EBIT Electron Beam Ion Trap 1986 1988 As Project Electronics Engineer responsible for design of all electronics for this accelerator Designs included Precision Programmable HV power supplies Magnet and Filament Power supplies Fiber Optic Telemetry and many different types of floating instrumentation Because of the unusual requirements of this project the bulk of the system electronics had to be Fs specially designed and built This was a joint LBL LLNL project pti fOr this TANDEM 8 MY Computerized Van Der Graff 1986 1987 Simultaneously with working on EBIT at LLNL was Project Electronics Engineer for the Tandem Project at that Laboratory Designed the Computer control system for this fully rebuilt and automated type FN Accelerator using Hewlett Packard 300 computers J ce fl T fhia 4 vC Pre h valk hn The Le sign avd devil ol Y tos f E ew WP 77 Ome 4 92 MON 232 54 ELECTRONICS DEPARTMENT 2 2 as controllers Produced initial software used for tests
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