Ramsey Electronics TT1 Instruction Manual

Summary of TT1

  • Page 1

    Tt1 • 1 “tattle-tale” telephone recorder kit ramsey electronics model no. Tt1 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 tt1 was designed with you i...

  • Page 2

    Tt1 • 2 ramsey transmitter kits • fm100b professional fm stereo transmitter • fm25b synthesized stereo transmitter • am1, am25 am transmitters • tv6 television transmitter ramsey receiver kits • fr1 fm broadcast receiver • ar1 aircraft band receiver • sr2 shortwave receiver • aa7 active antenna • sc...

  • Page 3: Tattle-Tale Telephone

    Tt1 • 3 tattle-tale telephone recorder ramsey publication no. Mtt1 price $5.00 table of contents introduction to the tt1 .................. 4 how it works .................................. 4 parts list ........................................ 7 schematic diagram ....................... 8 tt1 assemb...

  • Page 4

    Tt1 • 4 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 tt1 will be your “silent secretary”, recording calls for future playback. The ramsey tt1...

  • Page 5

    Tt1 • 5 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 ...

  • Page 6

    Tt1 • 6 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, ...

  • Page 7

    Tt1 • 7 tt1 parts list resistors 1 470 ohm [yellow-violet-brown] (r6) 2 47k ohm [yellow-violet-orange] (r2,7) 1 470k ohm [yellow-violet-yellow] (r4) 2 4.7m ohm [yellow-violet-green] (r3,5) 1 100k ohm [brown-black-yellow] (r1) capacitors 2 .01 uf disc capacitor [marked .01 or 103 or 10nf] (c1,2) semi...

  • Page 8

    Tt1 • 8.

  • Page 9

    Tt1 • 9 ramsey learn-as-you-build kit assembly there are numerous solder connections on the tt1 printed circuit board. Therefore, please take us seriously when we say that good soldering is essential to the proper operation of your kit! • use a 25-watt soldering pencil with a clean, sharp tip. • use...

  • Page 10

    Tt1 • 10 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 circu...

  • Page 11

    Tt1 • 11 page 11). In most cases the p1 hook-up in 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 th...

  • Page 12

    Tt1 • 12 tt1 parts layout diagram.

  • Page 13

    Tt1 • 13 initial testing hook-up your tt1 telephone recorder as in the figure below: telephone line once your tt1 is hooked-up per drawing push “power” button on tt1 to “on” position. Push “mode” button to “record” position. Push “record” button on tape recorder. The tape recorder is now in stand-by...

  • Page 14

    Tt1 • 14 usually all that are needed to correct any problem. A full circuit operating description is located starting on page 4 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 tt1 still doesn’t work properly, plea...

  • Page 15

    Tt1 • 15 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 ...

  • Page 16

    Tt1 • 16 tt1 “tattle-tale telephone recorder quick reference page guide introduction to the tt1 ................... 4 how it works .................................. 4 parts list ......................................... 7 schematic diagram ........................ 8 tt1 assembly instructions .........