User Manual in PDF - All Spectrum Electronics
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1. 1 10 O 19 Install 2 5mm tape recorder REMOTE plug cable see figure 11 In most cases the P1 hook up the schematic will be correct but as we all know some manufacturers just like to be different Though unlikely the manufacturer of your tape recorder may have reversed the positive and ground outputs on the remote jack This is not a problem as the TT1C is made to withstand reverse voltages Remember this point when it comes to testing the assembled unit If your tape recorder does not activate use a volt meter to measure from remote jack sleeve to remote jack tip on your board If the positive voltage is not on the sleeve the leads will need to be reversed Tip AA Sleeve Remote and Mike Jack Cables Whew Now that wasn t so bad now was it You have just completed the tape recorder control section of the TT1C Take a moment now to recheck you work for clean shiny solder connections Resolder any connections that are less than perfect We ll get back to building now starting at the audio input at J1 and working through the audio circuitry 20 Install C1 01uF disk capacitor marked 01 103 or 10nF This capacitor is not polarized so polarity is not important 21 Install C2 01uF disk capacitor marked 01 or 103 or 10nF same as in step 20 22 Install R7 47K ohm yellow violet orange 23 Install R6 470 ohm y2. TATTLE TALE TELEPHONE RECORDER KIT Ramsey Electronics Model No 1 Ever want to tape that annoying or obscene phone call Want to find out who is making those long distance calls from your phone Or how about taping that call just to remember what was said The TT1C was designed with you in mind Easy to construct and use an ideal first kit e Complete hands off operation Turns on when you pick up the phone turns off when you hang up gt No line noise to alert callers of taping e be connected to any modular phone jack or directly to telephone line terminal block e Easily connected to any tape recorder with remote and mike jacks e Play back the tape to our TG2 Tone Grabber to read out what number was called e Superior performance e Very clean low noise sound Excellent audio quality e Unit runs on telephone line power no need for batteries or external power supplies e Complete and informative instructions guide you to a kit that works the first time every time enhances resale value too ramsey RAMSEY TRANSMITTER KITS e FM100B Professional FM Stereo Transmitter e FM25B Synthesized Stereo Transmitter 1 AM25 AM Transmitters e TV6 Television Transmitter RAMSEY RECEIVER KITS S KIT amp 5 1 FM Broadcast Receiver e AR1 Aircraft Band Receiver CF ASN 5 SR2 Shortwave Receiver OT e 7 Active Antenna
3. e 501 Shortwave Converter 1 25 6096 RAMSEY HOBBY KITS Aie SG7 Personal Speed Radar e SS70A Speech Scrambler 5 5 1 Speakerphone WSS e WCT20 Wizard Cable Tracer 7 HE WO e LABC1 Lead Acid Battery Charger e ECG1 Heart Monitor e LC1 Inductance Capacitance Meter RAMSEY AMATEUR RADIO KITS e DDF1 Doppler Direction Finder e HR Series HF All Mode Receivers e QRP Series HF CW Transmitters e CW7 CW Keyer e CPO3 Code Practice Oscillator e VLF1 Low Bander e QRP Power Amplifiers RAMSEY MINI KITS Many other kits are available for hobby school Scouts and just plain FUN New kits are always under development Write or call for our free Ramsey catalog 1 TELEPHONE RECORDER INSTRUCTION MANUAL Ramsey Electronic publication No MTT1C Revision 1 2 First printing March 1994 COPYRIGHT 1994 by Ramsey Electronics Inc 590 Fishers Station Drive Victor New York 14564 All rights reserved No portion of this publication may be copied or duplicated without the written permission of Ramsey Electronics Inc Printed in the United States of America TT1C 2 Ramsey Publication No MTT1C Price 5 00 KIT ASSEMBLY AND INSTRUCTION MANUAL FOR TATTLE TALE TELEPHONE RECORDER TABLE OF CONTENTS Introduction to the 1 4 How it 5 4 a T Schematic 8 TT1C Assembly instruct
4. side of the circuit board 0 1 Identify and install DPDT switch 51 Be sure to push the switch flat to the circuit board Solder all six connections 1 2 Install switch 52 same as in step 1 1 3 Install the modular phone jack J1 We ll now begin by constructing the tape recorder control section of the TT1C O 4 Install R3 4 7M ohm yellow violet green O 5 Install R5 4 7M ohm yellow violet green O 6 Install D2 1N4148 type small signal diode glass body with black band Install it with the cathode band as shown as these diodes are polarity sensitive and must be installed in the correct direction 7 Install D3 1N4148 same as in step 6 8 Install D4 1N4148 same as in step 6 9 Install D5 1N4148 same as in step 6 10 Install R4 470K ohm yellow violet yellow 12 Install Q4 a 2N3904 NPN transistor When installing Q4 observe correct placement of the flat side Press the transistor snugly into the PC board so that only a minimum amount of wire lead is exposed above the board In soldering do not be afraid of using enough heat to make a good solid connection 13 Install Q2 2N3904 same as in step 12 14 Install Q3 2N3904 same as in step 12 15 Install R1 100K ohm brown black yellow 16 Install R2 47K ohm yellow violet orange 17 Install Q1 221334 PNP transistor Orient the part using the larger flat side with no writing on it 18 Install D1 1N4148 diode reviewing step 6 nunun
5. kit assembly steps First we install parts in physical relationship to each other so there s minimal chance of inserting wires into wrong holes Second whenever possible we install in an order that fits our Learn As You Build Kit building philosophy We have described the circuit that you are building instead of just blindly having you install components We hope that this will not only make assembly of our kits easier but help you to understand the circuit you re constructing For each part our word Install always means these steps 1 Pick the correct part value to start with 2 Insert it into the correct PC board location 3 Orient it correctly follow the PC board drawing and the written directions for all parts especially when there s a right way and a wrong way to solder it in Diode bands transistor shapes dotted or notched ends of ICs and so forth 4 Solder all connections unless directed otherwise Use enough heat and solder flow for clean shiny completed connections TT1C e9 Now let s get building Since you may appreciate some warm up soldering practice as well as a chance to put some landmarks on the PC board we ll first install some hardware components This will also help us to get acquainted with the up down left right orientation of the circuit board Remember that the components will be mounted on the component side of the circuit board and soldered on the solder
6. up any phone on the same phone line The tape recorder should start taping Talk into the phone for a few seconds Now hang up The tape recorder should stop running To listen to what was taped push the Stop button on tape recorder Push the Mode button on your TT1C to Playback Rewind your tape Push the Play button on your tape recorder You will now be hearing what was taped Yes it s that easy TROUBLESHOOTING INSTRUCTIONS While we had hoped that it wouldn t come to this if you are having trouble with your Tattle tale Telephone Recorder here are few suggestions By far the most common source of problems is due to misplaced parts or poor solder connections It s always best to take a break before searching for bad connections Around here it s referred to as the Irwin Time Test which states that anything left alone long enough seems to repair itself This also gives you a chance to clear your head A good way of checking component placement is to double check the assembly steps going backwards from the last steps to the first Bright lighting and a magnifying aid can be helpful in identifying soldering problems Use a methodical logical troubleshooting technique Most problems can be solved using common sense A volt ohm meter and a clear head are 1 13 usually all that are needed to correct any problem A full circuit operating description is located starting on page 4
7. ake sure everything on the parts list accompanied the kit Once you are satisfied with the parts LETS GET BUILDING TT1C gt 6 PARTS LIST 16 RESISTORS O 1 470 ohm yellow violet brown R6 O 2 47K ohm yellow violet orange R2 7 O 1 470K ohm yellow violet yellow R4 O 2 4 7M ohm yellow violet green R3 5 O 1 100K ohm brown black yellow R1 CAPACITORS 2 01 uF disc capacitor marked 01 or 103 or 10nF C1 2 SEMICONDUCTORS O NPN transistors marked 3904 Q2 3 4 O 1 PNP transistor marked 221 334 Q1 O 7 Diodes marked 1N4148 D1 2 3 4 5 6 7 MISCELLANEOUS PARTS AND HARDWARE 1 3 5mm Cable Mike plug P2 1 2 5mm Cable Remote plug P1 1 Telephone modular jack J1 2 Switch DPST pushbutton 51 2 1 TT1C printed circuit board naand TT1C 7 TT1C 8 RAMSEY Learn As You Build KIT ASSEMBLY There are numerous solder connections on the TT1C printed circuit board Therefore PLEASE take us seriously when we say that good soldering is essential to the proper operation of your kit Use 25 watt soldering pencil with a clean sharp tip Use only rosin core solder intended for electronics use Use bright lighting a magnifying lamp or bench style magnifier be helpful Do your work in stages taking breaks to check your work Carefully brush away wire cuttings so they don t lodge between solder connections We have a two fold strategy for the order of the following
8. all information required to properly build and test your kit is contained within the pages 1 DEFECTIVE PARTS It s always easy to blame a part for a problem in your kit Before you conclude that a part may be bad thoroughly check your work Today s semiconductors and passive components have reached incredibly high reliability levels and its sad to say that our human construction skills have not But on rare occasion a sour component can slip through All our kit parts carry the Ramsey Electronics Warranty that they are free from defects for a full ninety 90 days from the date of purchase Defective parts will be replaced promptly at our expense If you suspect any part to be defective please mail it to our factory for testing and replacement Please send only the defective part s not the entire kit The part s MUST be returned to us in suitable condition for testing Please be aware that testing can usually determine if the part was truly defective or damaged by assembly or usage Don t be afraid of telling us that you blew it we re all human and in most cases replacement parts are very reasonably priced 2 MISSING PARTS Before assuming a part value is incorrect check the parts listing carefully to see if it is a critical value such as a specific coil or IC or whether a RANGE of values is suitable such as 100 to 500 uF Often times common sense will solve a mysterious missing part problem If you re missing five 10K ohm resistors an
9. d received five extra 1K resistors you can pretty much be assured that the 1K ohm resistors are actually the missing 10 K parts Hum m m guess the red band really does look orange Ramsey Electronics project kits are packed with pride in the USA If you believe we packed an incorrect part or omitted a part clearly indicated in your assembly manual as supplied with the basic kit by Ramsey please write or call us with information on the part you need and proof of kit purchase 3 FACTORY REPAIR OF ASSEMBLED KITS To qualify for Ramsey Electronics factory repair kits MUST 1 NOT be assembled with acid core solder or flux 2 NOT be modified in any manner 3 BE returned in fully assembled form not partially assembled 4 BE accompanied by the proper repair fee No repair will be undertaken until we have received the MINIMUM repair fee 1 2 hour labor of 25 00 or authorization to charge it to your credit card account 5 INCLUDE a description of the problem and legible return address DO NOT send a separate letter include all correspondence with the unit Please do not include your own hardware such as non Ramsey cabinets knobs cables external battery packs and the like Ramsey Electronics Inc reserves the right to refuse repair on ANY item in which we find excessive problems or damage due to construction methods To assist customers in such situations Ramsey Electronics Inc reserves the right to solve their needs on a ca
10. e business calls you don t want to forget We think that you will be very pleased with the Hands Off operation audio quality and ease of assembly of this build it yourself telephone recorder If you follow our assembly instructions carefully and use your TT1C in accordance with applicable laws you ll have a proud reminder for all those phone conversations to come TT1C CIRCUIT OPERATING DESCRIPTION Take a look at the schematic diagram as we walk through the circuit As you can see there is not much to the telephone recorder For the purpose of making this as easy as possible we will assume the Power switch is on and the switch is in the record position We will discuss these switches later STAND BY MODE When the phone receiver is on hook hung up the voltage that is applied through the telephone line to J1 is about 48 volts This voltage is supplied by a room full of huge batteries at your local telephone company TT1C 4 That s why even when your local power goes out your telephone still works Surprising the things you can learn from these kit manuals Well back to the circuit To preface the next section it should be understood that a PNP transistor has an arrow on the emitter whch is pointing in where as a NPN transistor has an arrow on it s emitter which is pointing out Just as the arrows are reversed the operation of these two different types of transistors is re
11. ellow violet brown 24 Install D7 1N4148 signal diode remember cathode orientation 25 Install D6 1N4148 signal diode remember cathode orientation 26 Install P2 3 5mm tape recorder MIKE plug cable see figure above Congratulations You have now completed assembly of your Ramsey TT1C Tattle tale telephone recorder printed circuit board At this time lets take a short break to clean up the work area get a bowl of Rocky Road ice cream sit back and look over the work you just did Check for cold solder joints solder bridges missing components or any other problems Once you are satisfied with your assembly work it s time to TT1C e 11 1 PARTS LAYOUT DIAGRAM z 2 gt 0 m m m O 4 2 Z O 09 seer S t TT TT1C 12 test your new Ramsey 16 Tattle tale telephone recorder INITIAL TESTING Hook up your TT1C telephone recorder as in the figure below Telephone J Ine Tape Recorder Modular phone cord Not Supplied 1 2 Cables Not Supplied This cord can be purchased at Supplied your local electronics store Once your TT1C is hooked up per drawing push Power button on TT1C to position Push Mode button to Record position Push Record button on tape recorder The tape recorder is now in stand by Pick
12. ions 10 Parts Layout 03 12 13 13 Ramsey kit 15 RAMSEY ELECTRONICS INC 590 Fishers Station Drive Sa Victor New York 14564 fafrise Phone 585 924 4560 Fax 585 924 4555 www ramseykits com 1 3 INTRODUCTION Many times we wish to remember verbatim what was said during a phone call Whether it s directions to grandma s house or repair instructions for some other manufacturers electronic kits the TT1C will be your silent secretary recording calls for future playback The Ramsey TT1C Tattle tale is a telephone recorder which any person may build and use in accordance with the laws of one s state and local authorities For U S residents it is illegal to tape someones telephone conversation without informing all parties that the conversation is being taped So remember when you pick up the phone and say hello also inform the caller the conversation is being recorded The TT1C s capabilities make it practical for many uses but one should remember that this kit is definitely not a toy You may need to consult local regulations to provide you with some information necessary to enjoy the TT1C s capabilities in accordance with the law Typical uses for the TT1C include Recording directions to a particular location Varifing calls made from or to your telephone Taping annoying or obscene calls Or how about thos
13. of this book If you walk through this description carefully with your meter this should lead you to the root of the problem If your TT1C still doesn t work properly please understand that we do have a talented repair staff on hand but it is nearly impossible for us to troubleshoot by phone Any specific questions should be documented and sent to us by email or snail mail CONCLUSION We sincerely hope that you have enjoyed the construction and use of this Ramsey Kit As always we have tried to compose our manual in the easiest most user friendly format that is possible As our customers we value your opinions comments and additions that you would like to see in future publications Please submit comments or ideas to Ramsey Electronics Inc Attn Hobby Kit Department 590 Fishers Station Drive Victor NY 14564 And once again thanks from the folks at Ramsey TT1C 14 The Ramsey Kit Warranty Please read carefully BEFORE calling or writing in about your kit Most problems can be solved without contacting the factory Notice that this is not a fine print warranty We want you to understand your rights and ours too All Ramsey kits will work if assembled properly The very fact that your kit includes this new manual is your assurance that a team of knowledgeable people have field tested several copies of this kit straight from the Ramsey Inventory If you need help please read through your manual carefully
14. recorder motor We will go through the audio section when we discuss the next mode of operation the off hook or active mode ACTIVE MODE When the phone receiver is off hook picked up either by an answering machine or by someone answering or making a call this completes the telephone circuit When the circuit is completed the voltage now at J1 is in the range of 3 to 8 volts This reduction in line voltage is due to something called line loss This is when a circuit is completed and electrical current flows through the wires in the circuit the wire tends to act like a resistor The longer or smaller diameter the wire the more the resistance So now with this smaller voltage at J1 let s run through the TT1C circuit With 3 to 8 volts at J1 then going through the 10 1 voltage divider R3 R4 or R5 R4 by the time this voltage gets to the base of Q4 the voltage is not enough to turn Q4 on With Q4 turned off the collector of Q4 and also the base of Q2 rise to the voltage through R1 to the voltage supplied by the tape recorder remote jack This TT1C 5 voltage at the base of Q2 turns Q2 on With Q2 turned on it s collector and also the base of Q1 are pulled low With Q1 s base pulled low Q1 is turned on remember PNP transistor At this time Q1 passes the voltage from the remote jack to the base of Q3 turning Q3 on Q3 being turned on pulls it s collector which is connected to the remote jack low acti
15. se by case basis The repair is 50 00 per hour regardless of the cost of the kit Please understand that our technicians are not volunteers and that set up testing diagnosis repair and repacking and paperwork can take nearly an hour of paid employee time on even a simple kit Of course if we find that a part was defective in manufacture there will be no charge to repair your kit But please realize that our technicians know the difference between a defective part and parts burned out or damaged through improper use or assembly 6 REFUNDS You are given ten 10 days to examine our products If you are not satisfied you may return your unassembled kit with all the parts and instructions and proof of purchase to the factory for a full refund The return package should be packed securely Insurance is recommended Please do not cause needless delays read all information carefully 1 15 Tattle tale Telephone Recorder 16 Quick Reference Page Guide Introduction to the 1 4 How it WOFKS 4 Partsilist aie te eae 7 Schematic 8 TT1C Assembly instructions 10 Parts Layout 12 9 9 13 Troubleshooting 13 Ramsey kit warranty 15 REQUIRED TOOLS TOTAL SOLDER POINTS e Soldering Iron WLC100 58 e Thin Ro
16. sin Core Solder RTS12 ESTIMATED ASSEMBLY e Needle Nose Pliers PTS401 Beginnet 1 8 hrs e Small Diagonal Cutters PTS400 Intermediate 1 hr Advanced 0 8hrs ADDITIONAL SUGGESTED ITEMS e Helping Hands Holder for PC Board Parts HH3 e Desoldering Braid RTSO8 Price 5 00 Ramsey Publication No MTT1C Assembly and Instruction manual for RAMSEY MODEL NO TT1C Tattle tale Telephone Recorder Kit gt on ramsey RAMSEY ELECTRONICS INC 590 Fishers Station Drive Victor New York 14564 Phone 585 924 4560 Fax 585 924 4555 www ramseykits com
17. vating the tape recorder At this time the audio which comes in on the same telephone lines comes down to C1 and C2 in the audio section C1 and C2 block the incoming DC voltage but pass the audio through The audio then goes through a 100 1 divider R6 and R7 and is applied to the tape recorder mike jack Diodes D6 and D7 are used for protection and will never allow more than 7 volts of audio to reach the recorders Mike jack you never know what noise can come over the line when you re on the phone There now that we ve got all that out of the way there is just more thing to discuss the Power and Mode switches The Power switch connects the TT1C to your tape recorders remote jack When this switch is in the Off position the TT1C will have no effect on the tape recorders operation i e the tape recorder is in manual operation When this switch is in the position the power from the remote jack can be brought into the TT1C to be used to turn on and off the tape recorder remotely i e remote operation The Mode switch is used when you wish to either be in the Record mode with the tape recorders Record button pushed or Playback mode with the tape recorders Play button pushed for listening to what has been recorded remember to rewind the tape first Now before we get building check the parts that came in your kit with the parts list on the next page to m
18. versed An NPN transistor is considered turned on when the voltage at it s base is more than 7 volts greater than the emitter voltage PNP transistors are turned on when the emitter voltage is more than 7 volts greater than the base voltage The voltage at J1 is applied through a 10 1 voltage divider R3 and R4 or R5 and R4 depending on how the jack is hooked up to the base of Q4 turning Q4 on The diodes D2 3 4 and 5 are arranged so that even if the jack is hooked up backward the unit will still work properly When 4 is turned on the collector leg without the arrow is pulled down This voltage is also at the base of Q2 This voltage is too low to turn Q2 on So with Q2 turned off it s collector is allowed to rise to the voltage coming in from the tape recorder remote jack at 1 and through power switch 51 Typically this voltage is in the range of 3 to 18 volts This voltage is also applied to the base of Q1 turning it off With Q1 turned off no voltage passes through it to the base of Q3 leaving Q3 turned off NPN remember To activate the tape recorder the remote line must be pulled low this is the purpose of Q3 With Q3 turned off the line to the tape recorder remote jack is not affected and the tape recorder stays in stand by mode Therefore the second part of the circuit the audio section to P2 does nothing at this time D1 is used to protect the TT1C circuitry from reverse voltage or possible voltage spikes from a tape
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