pdf manual - Acoustic Dimension
Contents
1. A T i 8 lo i f H Open tar Do O i Le yh ET I RS 34 diyhifisupply The input connections and other connections should follow the Scheme shown underneath The Resistors and Capacitors form the RIAA Equalisation In principle other applications such as tape head amplifier could use the same principle diagram but with the Equalisation Network values adjusted to suit Out L Gut L Grad L Voor L In L In L diyhifisupely Uniwersal Tube Stage In R In L Yoom R Gad F Gut R Out L Gut L Gut R Grad L veom L In Lo In R diyhifisupply Unmersal Tube Stage In R In R icom R RCA Out R Gnd F T fe SIE ee ani Ring RCA Sockets MUST be elated from Chassis connect each modules Gnd L te the Groundpest on the chassis Phoenestage Connections dryhfisupply Unwersal Tube Stage 35 diyhifisupply 4 6 Alternate 12db Gain Stage in Shunt mode R RZ bak b k Viik R2 220FE for GJE Gain Attached an alternative way to do a 12dB Gain linestage with the UTS using the attenuator In shunt mode This allows you to tune the sound with the two series resistors Some believe shunt mode is better The UTS configuration is that in 3 01 but Vcom is not connected 36 diyhifisupply 4 7 Pro Audio Project On the Pro Audio side of things what is needed in today s world is a good 2 Channel Microphone Preamp for recording int2. upply Universal Tube Stage To Mains Switch Neutral Mute Connections see Text dihifisupply Universal Tube Stage Power Transformer connections 115 If your local power supply is in the range of 220V to 240V AC wire up the mains transformer as shown below Vig Rd To Moins Switch Live gov 115V Vio Bk Isclate joined wires Gn Rd a OV 115V diyhifisupply Unmersol Tube Stage Gn Bk To Moins Switch Neutral L Mute Connections see Text diyhifisupply Unuersol Tube Stage Power Transformer connections 230V Muting The Universal Tube Output Stage is fitted with a relay based muting circuit shunt type so it is completely disconnected when unmated which also performs a turn on delay For CD Players that produce unwanted noises etc between tracks it may be desirable to use this circuit to mute the signal the same way the original analogue stage did As this requires you to find the actual logic signal that controls the muting in the original equipment this is quite advanced and no simple guidance is possible You will most likely require a copy of the service manual and the ability to read the schematics within The Universal Tube Output Stage can accept mute signal that either mute when a High signal is present use the connection labeled Mute or that can mute when a Low Signal is present use the connection labeled Mute diyhifisupply 2 Output Connector Wiring The
3. 3 13 Settings and Input wiring for voltage output DAC stereo balanced output 2 3 VRMS full scale output voltage 2 5V reference voltage Known examples of DAC s requiring these settings are Analog Devices AD1852 AD1854 Asahi Kasei AKM AK4324 AK4382 AK4394 AK4395 AK4396 AK4397 Burr Brown PCM1791 PCM1793 DSD1791 DSD1792 Crystal Cirrus Logic CS4329 CS4350 CS4390 CS4391 CS4392 CS4396 CS439 7 C54398 CS43122 Nippon Precision Circuits NPC SM5865 SM5866 SM5872 Note SM5865 66 Datasheets misidentify the outputs as current types Niigata Seimitsu FN1242A Luxman Fluency DAC Philips TDA1547 SAA7350 Pioneer PD2026 PD2028 PD2029 Sony CXD2552Q Wolfson Micro WM8740 WM8741 This type of DAC requires the following jumper settings long Hoo 601876822 6H1 150 onlu LO A O O T i O A Do not fit 6H30 or 6H6 hi Sep 26 diyhifisupply The input connections should follow the Scheme shown underneath f diyhifisupply Universal Tube Stage In R In L Ycom R Gnd R Out R Out L DAC Stereo Balanced Output Out L Out R Gnd L Voom L In L In R diyhifisupply Universal Tube Stage In R In R Vcam R Gnd R Sut R Out R diyhifisupply Universal Tube Stage Input Connections Boloced Output Vout DAC All Ground connections must be made to the DAC s Analogue Ground Pin 21 diyhifisupply 3 14 Settings and Input wiring f
4. Universal Tube Output Stage can be connected either for stereo single ended connections or with two modules for stereo balanced connections 2 1 Stereo Single Ended Connection Shown below are the connections that need to be made from the RCA sockets to the Universal Tube Output Stage for a stereo single ended arrangement RCA Sockets MUST he isolated fram Chassis ROA Out L Tip Ring 2 9OV AC diyhitigupply OV AG ROA Out R Universal Tube Stage Ring 4 MV AC E Tip 1 Mute diyhifisupply Univers l Tube Stage Output Canneetians 1 Module SE Stereo Depending on the RCA connectors used you may have to solder the wires to the RCA Sockets It is important that the RCA sockets are mounted such the sockets metal shell does not make contact with the Chassis diyhifisupply 2 2 Stereo Balanced Connection Shown below are the connections that need to be made from the XLR and optionally RCA sockets to the Universal Tube Output Stage for a stereo balanced arrangement RCA Sockets MUST be isoloted fram Chassis Out L Out L Gnd L XLR Out L Veam L In L In L diyhifisupply RCA Out L Universal Tube Stage i Veam R Gnd R Out R Out L Out L Out R Gnd L XLR Out R Vcom L diyhifisupply RCA Out R Univers l Tube Stage i Veom R Gnd R Out R Out R diyhifisupply Universal Tube Stage Output Connections 2 Modules Balanced Depending on the XLR amp RCA
5. connectors used you may have to solder the wires to the XLR and RCA sockets It is important that the RCA sockets are mounted such the sockets metal shell does not make contact with the Chassis The metal shell of XLR connectors is designed to contact the chassis for shielding and hence it can and should make contact with the chassis 10 diyhifisupply 3 Input Wiring and Module Configuration The Universal Tube Output Stage can be connected and configured in many different configurations to allow for virtually all DAC s made to be connected correctly In order to select the correct input wiring and jumper setting you need to determine the actual part number of the DAC Chip fitted to your CD Player DVD Player or DA Converter If your DAC Chip is listed in the Appendix you only need to select the correct page for this DAC You will still need to determine the actual Pins on the DAC Chip that carry the output signal analogue ground and if present reference voltage You will need to tap off these DAC Chip pins and connect them to the Universal Tube Output Stage If the DAC Chip has a so called voltage output you can keep the original solid state analogue stage connected and run it and the Universal Tube Output Stage in parallel If the DAC Chip has a so called current output you must disconnect the original solid state analogue stage from the DAC This usually means cutting away the traces connecting to the current outpu
6. ended 2mA full scale current OV reference voltage rrrrrrrrrerarerarernnrrnnrrnanrvanennnrnnannnanenanennnennusnnannennennee 13 3 03 Settings and Input wiring for current output DAC dual mono single ended 1mA full scale current OV reference voltage 15 3 04 Settings and Input wiring for current output DAC dual mono single ended 2mA full scale current OV reference voltage 16 3 05 Settings and Input wiring for current output DAC balanced mono DAC s balanced output 1mA full scale current OV reference voltage 17 3 06 Settings and Input wiring for current output DAC balanced mono DAC s balanced output 2mA full scale current OV reference voltage 18 3 07 Settings and Input wiring for current output DAC stereo single ended 1mA full scale current 2 5V reference voltage nainii innta AAA TEA UEA 19 3 08 Settings and Input wiring for current output DAC balanced Stereo DAC s balanced output 1mA full scale current 2 5V reference voltage 20 3 09 Settings and Input wiring for current output DAC balanced Stereo DAC s balanced output 4mA full scale current 2 5V reference voltage 21 3 10 Settings and Input wiring fo
7. kOhm 430 kOhm Due to the extremely wide number of possibilities in configuring these Modules we are showing only a small number of the most common options 29 diyhifisupply 4 1 Settings and Input wiring for use as SE Linestage 6db Gain This type of Application requires the following jumper settings 30000 mm not fit 6H30 or 6H6 cee i ei be E Universal Tube Stage nA g te h c201 D Gut ena fn 2008 ATL OLYHFS UL 1 RCA In 2 L Tip s Ring diyhifigugply RCA In 1 R Universal Tube Stage RCA In 2 R Tip Ring MOTE dyhifisupply Universal Tube Stage use shart length af shielded cable ta wire the wiper of the Valurn Control Input Connections 1 Module Linestage ta the module 30 diyhifisupply 4 2 Settings and Input wiring for use as SE Linestage 12db Gain This type of Application requires the following jumper settings 30000 mm not fit 6H30 or 6H6 cee i ei be Universal Tube Stage g te OD fn 2008 ATL OLYHFS UL 1 diyhifisupply Universal Tube Stage ROA In 2 R Oo E Rina NOTE diyhifisupply Universal Tube Stage use o short length af shielded cable ta wire the wiper af the Valure Cantral Input Connections I Module Linestage ta the module 31 diyhifisupply 4 3 Settings and Input wiring for use as Balanced Linestage 6db Gain This type of Application requires the following jumper settings ier LOGI ECC88760I8692276
8. line stage obvious or DAC output stage equally obvious Single Ended MM Phono Stage 2 Modules add a RIAA EQ of 10K or higher impedance at low frequencies calculator http kabusa com riaa htm or 10K RLC EQ add pre pre or MC stepup TX for MC Balanced MM Phono Stage 4 Modules add a balanced RIAA EQ of 10K or higher impedance at low frequencies calculator http kabusa com riaa htm or 10K RLC EQ add pre pre or MC stepup TX for MC Single Ended Tape Head Stage 2 Modules add a NAB etc EQ of 10K or higher impedance at low frequencies calculator http kabusa com riaa htm or 10K RLC EQ Balanced Tape Head Stage 4 Modules add a balanced NABetc EQ of 10K or higher impedance at low frequencies calculator http kabusa com riaa htm or 10K RLC EQ Classic high gain 1 Channel transformer coupled Microphone Preamplifier using 1 4 5 input transformer and 5 4 1 transformer balanced output with level control between stages 1 Modules maximum gain 60db 4 diyhifisupply Classic high gain 2 Channel transformer coupled Microphone Preamplifier using 1 4 5 input transformer and 5 4 1 transformer balanced output with level control between stages 2 Modules maximum gain 60db Classic low gain 2 Channel transformer coupled Microphone Preamplifier using 1 4 5 input transformer and transformerless balanced output 10K load 2 Modules maximum gain 40db Classic high gain 2 Chan
9. A C O le 2008 ATL DIYHFS UL 1 1 Out L Out L 2 Gnd L lo L DAC Mono 3 Veom L 4 In Ll In L diyhifisupply Universal Tube Stage f In R In L la L 3 Veam R DAC Mono Gnd R Out R Out L Out L Out R Gnd L lo R veom L In L In R DAC Mono diyhifisupply Universal Tube Stage In R In R veom R lo R Gnd R Out R Out R DAC Mono diyhifisupply Universal Tube Stage Input Connections Mono Balanced Output lout DAC All Ground connections and the Vcom connections must be made to the respective channels DAC s Analogue Ground Pins 18 diyhifisupply 3 07 Settings and Input wiring for current output DAC stereo single ended 1mA full scale current 2 5V reference voltage Known examples of a DAC s requiring these settings is are Philips TDA1543A and TDA1545A with modification as per Datasheet Note 5 and Burr Brown PCM67 amp PCM69 This type of DAC requires the following jumper settings l Vg pee DNG egies mn not fit 6H30 or 6H6 cee i te iS Universal Tube ds 2 en 9 Gut ana fn 2008 ATL DIYHFS UILI 1 The input connections should follow the Scheme shown underneath Vref Vcam diyhifisupply I Universal Tube Stage DAC Stereo diyhifisupply Universal Tube Stage Input Connections 1 Module lout DAC SE Stereo with Vref All Ground connections must be made to the DAC s Analogu
10. Burr Brown PCM1792 PCM1 794 PCM1796 PCM1798 DSD 1792 DSD 1794 and DSD1796 These types of DAC require the following jumper settings I T Bee reca A p PME 3 1 Universal Tube Me O 2008 ATL DBIYHFS UL 1 1 Out L Out L 2 Gnd L 3 Veam L 4 InL In L diyhifisupply Universal Tube Stage 4 In R In L 3 Vcom R 2 Gnd R 1 Out R Out L DAC Stereo Balanced Output Gnd g 1 Out L Qut R 2 Gnd L 3 vcom L 4 InL In R diyhifisupply Universal Tube Stage 4 In R In R 3 Vcom R 2 Gnd R 1 Out R Out R diyhifisupply Universal Tube Stage Input Connections Baloced output 4mA lout DAC All Ground connections and the Vcom connections must be made to the respective channels DAC s Analogue Ground Pins 22 diyhifisupply 3 11 Settings and Input wiring for voltage output DAC stereo single ended 1 1 5 VRMS full scale output voltage OV reference voltage A known example of a DAC requiring these settings is the Crystal Cirrus Logic CS4328 This type of DAC requires the following jumper settings i Pl a 30000 NG Me O O O UO mm not fit 6H30 or 6H6 cee i Universal Tube a O 2008 ATL O1YHFS UL 1 DAC Stereo Gnd dyhifisupply Universal Tube Stage diyhifisupply Universal Tube Stage Input Connections I Module Vout DAC SE Stereo All Ground connections must be made to the DAC
11. C s are operated in balanced mode require these settings and wiring The types of DAC Chips applicable are Burr Brown PCM56 PCM1702 amp PCM1704 as well as Analog Devices AD1856 AD1861 amp AD1862 I recor A p O O O 1O PME paai Universal Tube ARR on O 1 Out L Out L lo L 2 Gnd L DAC Mono 3 Veom L 4 In L In L diyhifisupply Universal Tube Stage f 4 In R In L lo L 3 vcecom R DAC Mono 2 Gnd R 1 Out R Out L 1 Out L Out R 2 Gnd L lo R 3 veom L 4 InL In R DAC Mono diyhifisupply Universal Tube Stage 4 In R In R 3 vcom R la R 2 Gnd R 1 Out R Out R diyhifisupply Universal Tube Stage Input Connections Mono Balanced Output lout DAC All Ground connections and the Vcom connections must be made to the respective channels DAC s Analogue Ground Pins DAC Mono 3 06 Settings and Input wiring for current output DAC balanced mono DAC s balanced output 2mA full scale current OV reference voltage 17 diyhifisupply Players and DA Convertors where four DAC s are operated in balanced mode require these settings and wiring The types of DAC Chips applicable are Burr Brown PCMG63 30000 i J wee Do not fit 6H30 or 6H6 Cnet to CLADL E 3 KLO l e gt L Ql 2 3 wat r A a A A ngen Ended i ribose Universal Tube Stage g te o
12. Ground Pin 13 diyhifisupply The TDA1541 A is listed in the Datasheet as follows PINNING latch enable input word select input data left channel input DATA L DATA data input selected DATA L DATA 3 format P data right channel input DATA R SYS system clock input DATA R SCK 4 T 3 GND A right channel output roas4 analogue ground 7 DECOU DECOU DECOU E decoupling k ok DECOU h DECOU ad DECOU 1 Go Sa on gt DECOU DECOU DECOU 2 Po BJ BJ BJ ud x Fig 2 Pinning diagram us aaa i pi n c BJ 2 D on GND D digital ground 72985345 q 15 V supply voltage hl oo From this we derive that Pin 5 is Analogue Ground Pin 6 is Right Channel Current Out and Pin 25 is Left Channel Current Out So we need to disconnect all traces from Pin 6 and Pin 25 Then we need to connect Pin 25 to the In L connection on the Universal Tube Output Stage and Pin 6 to the In R connection The connections from Gnd L Gnd R Vcom L and Vcom R on the Universal Tube Output Stage need to be made all to Pin 5 of the TDA1541 preferably using individual wires 14 diyhifisupply 3 03 Settings and Input wiring for current output DAC dual mono single ended 1mA full scale current OV reference voltage Known examples of DAC s requiring these settings are Burr Brow
13. H1 76067 ons ri ry ar k sad 2 3 t 7 oe MA 1 2 A 1 2 I am IMA 2 3 Ucom N c c2 A Ga m Er Do not fit 6H30 or 6H6 i ei be Universal Tube Stage L Mute OD fn 2008 ATL OLYHFS UL 1 ROA Sockets MUST be isolated fram Chassis Dut L Out L 3 Grid L LR In 1 L Weari L 1 AT L In In L diyhifisupply Universal Tube Stage LAR Im 2 L Ir ln L 3 1 z veom R 3 Grid R Out R Out L Out L Out R Gnd L XLR In 1 R Year L 1 21 In L In R BRT IS di diyhitisupply Universal Tube Stage XLR In 2 R Ir In R 1 z Wear R 4 Grid BR Out R Out R diyhifisupply Universal Tube Stage Input Connections Linestage Balanced 32 diyhifisupply 4 4 Settings and Input wiring for use as Balanced Linestage 12db Gain This type of Application requires the following jumper settings SS erd aniu H l 2 r DL 2 3 t k02 l 2 t s L DL 3 MA 1 2 MD 2 3 ucom risasi JB tar Sterea Single Ended an Bal Do not fit 6H30 or GHOST i ei be Universal Tube Stage stri L Mute OD 2008 ATL OLYHFS UL 1 ROA Sockets MUST be isolated fram Chassis Out L Out L 3 Gna L LA In 1 L Year L 1 FL Im In L 31 diyhifisupply Universal Tube Stage LAR In 2 L In F In L 1 2 VWearn F 3 Gnd R Sut R Sut L Sut L Out R 3 Gnd L LAR In 1 R Voorn L 1 21 In L In R diyhifisupply Universa
14. diyhifisupply Universal Tube Output Stage Installation Manual OOO oa OOOO Pup _ T IN S5JHAID WY BOOZ 3 8 e i PNI E 9 1 rg k eu Teo H ebeig qni Jesua ATIun af 1ddnst 1yhIp Jj J T gt H po ois ene od oa sa it SSS mas O mo e OO D1D 9H9 40 DEHS 31 30U OD 2 J ae W en p e BVET Sy x nia de ni 2 1 EVT lh Lh LI JE Xr 5J PEE AI imp 1013F vel FET AD armen E l TID 13 PF mon Lucio upr Zd ATUO 7 99297 1H9 ZZ69 8S 0988995 cO zi diyhifisupply Table of Contents Universal Tube Output Stage Installation Manual 1 SPENNE pene u unu en eee ee eee qasa 7 MECHANICA sees T Electrical PETTEE NS 1 Power Supply Wiring a saa rsssssarsssrsssssssssssssssssasssa 8 To NR 8 2 OUTOUL CONMECION VIG ee 9 2 1 Stereo Single Ended Connection 9 2 2 Stereo Balanced CONNECTION arisini EE N E 10 3 Input Wiring and Module Configuration 11 3 01 Settings and Input wiring for current output DAC stereo single ended 1mA full scale current OV reference voltage sincan E R 12 3 02 Settings and Input wiring for current output DAC stereo single
15. e Ground Pin All Vcom connections from the Universal Tube Output Stage must be made to the Reference Voltage Vref or Common Mode Voltage Vcom Pin s on the DAC 19 diyhifisupply 3 08 Settings and Input wiring for current output DAC balanced Stereo DAC s balanced output 1mA full scale current 2 5V reference voltage Known examples of DAC s requiring these settings are Burr Brown PCM1738 as well as Analog Devices AD1853 These types of DAC require the following jumper settings 30000 _ gt di Smt nine Universal Tube St aa OG c201 2008 ATL DBIYHFS UL 1 Out L Out L 2 Gnd L 3 vcorm L 4 In L In L 1 GOv AC 2 90v AC diy hifisupply IV AC Universal Tube Stage 4 9V AC In R Im L Veam R 1 Mute Gnd R Vref Vcam Out R Out L DAC Stereo Baolonced Output Qut L Out R Gnd L vcom L In L In R GOV AC GOV AC diyhifisupp ly ov AC Universal Tube Stage ov AC In R In R veom R Mute Gnd R Out R Out R diyhifisupply Universal Tube Stage Input Connections Balaced output lout DAC with Vref All Ground connections must be made to the DAC s Analogue Ground Pin All Vcom connections from the Universal Tube Output Stage must be made to the Reference Voltage Vref or Common Mode Voltage Vcom Pin s on the DAC 3 09 Settings and Input wiring for current output DAC balanced Ste
16. ections of the output sockets to the module Section three covers the different arrangements of the Input connections and the jumper configuration to suit the various available DAC Chips and the other applications diyhifisupply Specifications Mechanical Tube PCB with 10mm Standoffs 10mm standoffs are required and 10mm clearance must be present below the PCB 140mm deep 80mm wide 45mm high Fixing holes in the four corners on a 71mm X 131mm rectangle Fixing holes require M3 or equivalent screws Mains transformer 76mm diameter 40mm high Fixing with either central M4 M5 bolt or via 4 racetrack shaped 8mm X 5mm Holes centered on a 60mm square This means for the mains transformer to fit at least 40mm clearance above it is required the tube stage needs 45mm Electrical Performance example only as will vary by implementation measurements lout DAC Mode 30db gain referenced to 2V RMS Saratov Reflector Sovtek 6N23 fitted Measurements vary with different tubes fitted specifications S N gt 100dbA approx Snv hz THD lt 0 15 lt 0 1 typical lt 1 THD 10Vout 100K load 20Hz 20KHz lt 0 5db with IHF 10K 1nf load Output Impedance lt 100 Ohm Can use 6cg7 6N11 ECC 88 6DJ8 6922 6H1 only diyhifisupply 1 Power Supply Wiring If your local power supply is in the range of 100V to 120V AC wire up the mains transformer as shown below To Mains Switch Live diyhifis
17. l Tube Stage LA In 2 R In R In R 3 1 2 Vearn F 3 Gnd F Gut A Out R 3 dyhifisupply Universal Tube Stage Input Connections Linestage Balanced 33 diyhifisupply 4 5 Settings and Input wiring for use as simple single ended stereo RIAA equalisation preamplifier One possible application is to use two Universal Tube Output Stages together with a minimal number of external components to form the RIAA Equalisation network as Phonostage One Module will be used for each channel so Tubes used should be identical in manufacturing and preferably matched This application will produce a Moving magnet and High Output Moving compatible Phonostage with 47kKOhm input impedance 36 38db Gain depends on the exact tube type and manufacturer used When using narrow tolerance or selected parts tolerance 0 5 or better for capacitors and 0 1 for resistors for the RIAA as equalisation the RIAA EQ will be better than 0 1dB from 100Hz to 20KHz with an 0 5dB rolloff at 20Hz and a 3db point below 10Hz lf 1 tolerance resistors and 5 tolerance capacitors are used the RIAA EQ will be better than 0 2dB with no more than 0 6db rolloff at 20Hz For example 0 2db RIAA requires 2 9 Tolerance capacitors With 5 Tolerance around 0 3db are guaranteed With 10 Tolerance capacitors around 0 5db With 1 tolerance Capacitors it is better than 0 15db This type of Application requires the following jumper settings
18. n PCM56 PCM58 PCM1702 amp PCM1704 as well as Analog Devices AD 1851 AD1856 AD1860 AD1861 amp AD 1862 This type of DAC requires the following jumper settings i aa 30000 NG a ae mm not fit 6H30 or 6H6 cee i bre Universal Tube kusi te O a Gnd 2008 ATL OLYHFS UL 1 la L DAC Mono diyhifisupply Universal Tube Stage la FR DAC Mano diyhifisupoly Universal Tube Stage Input Connections Mana lout DAC All Ground connections and the Vcom connections must be made to the respective channels DAC s Analogue Ground Pins 15 diyhifisupply 3 04 Settings and Input wiring for current output DAC dual mono single ended 2mA full scale current OV reference voltage A known example of a DAC requiring these settings is the Burr Brown PCM63 This type of DAC requires the following jumper settings a not fit 6H30 or 6H6 cee i LR ti oime Universal Tube Stage L te Gnd O 2008 ATL OLYHFS UL 1 la L DAC Mono diyhifisupply Universal Tube Stage la R DAC Mano diyhifigupply Universal Tube Stage Input Connections Mana lout DAC All Ground connections and the Vcom connections must be made to the respective channels DAC s Analogue Ground Pins 16 diyhifisupply 3 05 Settings and Input wiring for current output DAC balanced mono DAC s balanced output 1mA full scale current OV reference voltage Players and DA Convertors where four DA
19. nel transformer coupled Microphone Preamplifier using 1 4 5 input transformer and transformerless balanced output 10K load with level control between stages 4 Modules maximum gain 72 75db Input and Summing Amplifier in a classic tube mixer for example a 6 2 mixer could be build using 6 Microphone transformers plus instrument input jacks 3 tube stage modules for inputs suitable volume and pan control faders potentiometers per chnnel and one tube output module with 4 5 1 stepdown output transformers fo balanced output Maximum gain in to out using 1 4 4 1 transformers is around 60db For ease of application all connections on the Universal Tube Output Stage are provided as screw terminals and all configurations are handled by gold plated jumpers so no soldering is required on the actual Universal Tube Output Stage Module diyhifisupply For those desiring soldered connections instead we recommend to either unsolder the screw terminals and solder the wires in the holes thus available or to simply solder the wires to the solder pads below the PCB Equally for those wishing a soldered configuration instead of jumpers simple solder bridges can be soldered across the jumper pins below the PCB In the following Manual the application of the Universal Tube Output Stage is broken down into three distinct sections Section one covers the connections of the included power supply transformer while section two covers the conn
20. o a digtal workstation and a downmix line level input mixer say 8 2 and a 6 Way Cello Palette style tone control The Cello Palette style gig could also work for HiFi as a full preamplifier http www highendpalace com 107000 jpg Tone control can be done fully passive This needs two UTS and optional line input 10K 10K Mu Metal Core 20dBu amp output transformers 10K 600 Mu Metal Core 20dBu output for balanced operation plus tons of switches pots A Microphone Preamp balanced in amp out would need a Mic input transformer 1 5 or 1 10 with gt 1K primary two UTS and Output Transformer 10K 600 plus various small parts The 8 2 line mixer balanced in amp out would need 8 pcs 10K 10K line transformers and two UTS plus two output Transformers and again tons of pots amp switches Past the above the same transformers and UTS could also be used in Compressors and also for example a Pultec Equaliser copy 3 diyhifisupply Penner Fallawer Ki _ R GL are Heater 38 diyhifigupply Universal Tube Stage Principle Diagram
21. or as balanced in out per PCB If using a balanced output DAC with a single ended input Tube output an additional resistor or resistor capacitor needs to be added externally to the tube PCB All DAC types listed below names the most commonly encountered types but is by no means exhaustive diyhifisupply Some examples 1 Analog stage for current output DAC 2V out for Odbfs with 1mA or 2mA full scale current can be configured for DAC s having their output referenced to either ground TDA1541 PCM56 63 1702 1704 AD1856 1862 1865 or an arbitrary reference voltage of 2 3V TDA1543 1545 PCM1738 AD1853 and many others lt 100R output impedance 2 Analog stage for voltage output DAC 2V out for Odbfs with 1V or 0 5V full scale voltage can be configured for DAC s having their output referenced to either ground CS4328 or an arbitrary reference voltage of 2 3V CS4329 9X PCM1716 1728 1732 1741 AKM4393 4394 4395 AD1852 1854 1855 NPC SM5872 5865 5866 et al lt 100R output impedance 3 General high level gainstage 6db gain inverting output gt 400KOhm input Impedance lt 100R output impedance 4 General high level gainstage 12db gain inverting output gt 200KOhm input Impedance lt 100R output impedance 5 General low level gainstage Microphone Phono Tapehead etc with around 30db gain and gt 40KOhm input impedance lt 100R output impedance Some possible applications past the use as
22. or single ended stereo output from voltage output DAC stereo balanced output 2 3 VRMS full scale output voltage 2 5V reference voltage Known examples of DAC s requiring these settings are listed under 3 13 This type of DAC requires the following jumper settings not fit 6H30 or 6H6 a i et boosie Universal Tube Stage al on 110 SIK c108 2008 ATL DIYHFS UL 1 Out L Out L Gnd L 3 Veom L In L In L diy hifisupply Universal Tube Stage In R In L 3 vecom R 2 Gnd R Out R Out L DAC Stereo Bolonced Output diyhifisupply Universal Tube Stage Input Connections Balaced Output Vout DAC SE Out All Ground connections must be made to the DAC s Analogue Ground Pin 28 diyhifisupply 4 Other applications of the Universal Tube Output Stage Due to its design the Universal Tube Output Stage can be used in a number of additional Roles Each module can be configured as Single Ended or Balanced Circuit with the following levels of Gain and input Impedances assuming source with output impedances that are small compared to the input impedance Input Impedance 30dB 47 kOhm 12dB 200 kOhm 400 kOhm In addition other gain levels can be set by using the 30dB Gain configuration and inserting a resistor in series with the signal Some of them in steps of 6db are listed below 300B 1 kOhm 24dB 33 kOhm 18dB 91 kOhm 12dB 220
23. r current output DAC balanced Stereo DAC s balanced output 4mA full scale current OV reference voltage 22 3 11 Settings and Input wiring for voltage output DAG stereo single ended 1 1 5 VRMS full scale output voltage OV reference voltage 23 3 12 Settings and Input wiring for voltage output DAG stereo single ended 1 1 5 VRMS full scale output voltage 2 5V reference voltage 24 3 13 Settings and Input wiring for voltage output DAG stereo balanced output 2 3 VRMS full scale output voltage 2 5V reference voltage 26 3 14 Settings and Input wiring for single ended stereo output from voltage output DAC stereo balanced output 2 3 VRMS full scale output voltage 2 5V reference VONAGO EEE EEE EE EE E ntandss 28 4 Other applications of the Universal Tube Output Stage 29 4 1 Settings and Input wiring for use as SE Linestage 6db Gailn 30 4 2 Settings and Input wiring for use as SE Linestage 12db Gailn 31 4 3 Settings and Input wiring for use as Balanced Linestage 6db Gailn 32 4 4 Settings and Input wiring for use as Balanced Linestage 12db Galn 33 4 5 Settings and Inp
24. reo DAC s balanced output 4mA full scale current 2 5V reference voltage 20 diyhifisupply A known example of a DAC requiring these settings is the Analog Devices AD1955 This type of DAC requires the following jumper settings PIC BD Jer As IR 3 uns e Ended ased far Mana Do not fit 6H30 or 6H6 i ribose Universal Tube Stage Zn L Mute ET OD C6 D a 2008 ATL DIYHFS UL 1 1 Out L Out L 2 Gnd L 3 Veam L 4 InL In L diyhifisupply Universal Tube Stage 4 In R In L gt 3 Vcom R 2 Gnd R Vref Vcam 1 Out R Out L DAC Stereo Balanced Output 1 Out L Out R 2 Gnd L 3 Veam L 4 InL In R diyhifisupply Universal Tube Stage 4 In R In R 3 Veom R 2 Gnd R 1 Out R Out R diyhifisupply Universal Tube Stage Input Connections Boloced output 4mA lout DAC with Vref All Ground connections must be made to the DAC s Analogue Ground Pin All Vcom connections from the Universal Tube Output Stage must be made to the Reference Voltage Vref or Common Mode Voltage Vcom Pin s on the DAC An additional 51 Ohm Resistor needs to wired in each channel between In and Vcom 21 diyhifisupply 3 10 Settings and Input wiring for current output DAC balanced Stereo DAC s balanced output 4mA full scale current OV reference voltage Known examples of DAC s requiring these settings are
25. s Analogue Ground Pin 23 diyhifisupply 3 12 Settings and Input wiring for voltage output DAC stereo single ended 1 1 5 VRMS full scale output voltage 2 5V reference voltage Known examples of DAC s requiring these settings are Analog Devices AD1866 AD1868 AD1857 58 59 AD1958 Asahi Kasei AKM AK4384 AK4385 AK4386 AK4387 AK4388 AK4344 AK4345 AK4364 Burr Brown PCM1716 PCM1723 PCM1727 PCM1728 PCM1732 PCM1740 PCM1741 PCM1742 PCM1744 PCM1748 PCM1753 54 55 PCM1770 71 72 73 74 PCM1780 81 82 PCM2704 05 06 07 DSD 1702 Crystal Cirrus Logic CS4327 CS4334 35 36 37 38 39 40 41 441 451 46 48 49 Nippon Precision Circuits NPC SM5882 SM5883 SM5885 Pioneer PE8001 Philips TDA1305T TDA1306T 86T TDA1311T 12T 13T TDA1549 UDA1320 21 22 I 24 Sanyo LC78835 Panasonic MN662710 Technics Mash CD Player on one chip IC Wolfson Micro WM8716 This type of DAC requires the following jumper settings Po Eoo OQI BD 60J876922 6H1 zaro sr O O O pe fi ii i i i H Open tar Do O i iif aT Padi no Pos 24 diyhifisupply The input connections should follow the Scheme shown underneath DAC Stereo Gnd diyhifisupply Universal Tube Stage diyhiftigupply Universal Tube Stage Input Cannesctiangs 1 Module Vout DAC SE Stereo All Ground connections must be made to the DAC s Analogue Ground Pin 25 diyhifisupply
26. t pins As can be seen from the above one of the key distinguishing marks of DAC Chips for our application is the presence of Voltage or Current outputs Usually current outputs tend to sound better as there is no additional circuitry build into the DAC Chip to convert the current from the actual DAC into Voltage Some DAC Chips have the circuitry for current to voltage conversion on chip but allow the user to access the current output In this case using the current output is preferred Other items of concern when selecting the correct connection and settings are if the DAC Outputs actually are referenced to Analogue Ground OV DC on the DAC output pins or if they are referenced to a so called reference voltage around 2 5V DC offset on the DAC output pins Of final concern is if the DAC used has single ended or balanced outputs If the DAC has only Single Ended outputs it is not possible to get a balanced output signal Conversely DAC s that have a balanced output can generally be connected in single ended mode with little or no complications In the following we will cover individual configurations for various DAC Chip Structures Wherever possible a list of known DAC s conforming to this scheme is given Known means they are known to have been manufactured at some time and are documented in the public domain to have technical data and design features placing them into the group of DAC s using this scheme It does not imply
27. that the particular combination of DAC and Universal Tube Output Stage has been tested with this type of DAC 11 diyhifisupply 3 01 Settings and Input wiring for current output DAC stereo single ended 1mA full scale current OV reference voltage Known examples of DAC s requiring these settings are Burr Brown PCM1700 as well as Analog Devices AD 1865 This type of DAC requires the following jumper settings 1 O O O Do not fit 6H30 or 6H6 cee i te iS pam Universal Tube ds om naif L Gut cia 2008 ATL OLYHFS UL 1 diyhifisupply Universal Tube Stage dyhifisupply Universal Tube Stage Input Connections 1 Madule laut DAS SE Stereo All Ground connections and the Vcom connections must be made to the DAC s Analogue Ground Pin 12 diyhifisupply 3 02 Settings and Input wiring for current output DAC stereo single ended 2mA full scale current OV reference voltage A known example of a DAC requiring these settings is the Philips TDA1541 TDA1541A This type of DAC requires the following jumper settings it dg 0 ote ye mm not fit 6H30 or 6H6 cee i LR ti oime d Universal Tube Stage i Ucan A L Mute gt Gnd O A Gnd L Gut 110 fn dy hifisupply Universal Tube Stage diyhifisupply Universal Tube Stage Input Connections 1 Module laut DAC SE Steres All Ground connections and the Vcom connections must be made with individual wires to the DAG s Analogue
28. ut wiring for use as simple single ended stereo RIAA equalisation DFS QMID IT CP u u uuu ussbustushasubunuaapanhubunhunusqpawapayqanawthuysaspawtamauawpuantuapiwupamupuupaushawqabapas 34 4 6 Alternate 12db Gain Stage in Shunt mode 36 Fr POTI POE 38 diyhifisupply Introduction and Overview The diyhifisupply Universal Tube Output Stage has been designed to offer a State of the Art tube amplification stage mainly intended to be applied to CD Players DVD Players and DA Convertors to completely replace the original solid state analogue circuit ry 26 EN bi B vad i 2 Py JERN e eg gt r a ee gt i sin w lyh fi suppl YYA gA x JQiversal Tube Stage v gt A Q 2 p l SF 4 2008 ATL DIYHFS f E Additional applications include the use as Line Preamplifier with 6dB or 12dB gain The module can also be used as low noise high gain gain appx 30db amplification block for low level applications such as RIAA pre amplification stages and as microphone or instrument amplifier Using one module we have either a stereo single ended input and output two independent channels or a mono balanced input and output single balanced channel If a stereo balanced input and output are required two modules must be used Each configuration can be used either as single ended in out stereo for one PCB
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