Vintage Test Set, a Hardware Hackers Delight on eBay

(LURK OFF) Item 290114723691, Safetran Dual Tone Multi-Frequency Test Set A41080. I thought about buying another of these just for its potential, but am passing on bidding on this one and letting the list be aware of what I found this in this little 14x10x6 inch fiberglass case. I bought one of these, 290112949036, from the same seller. It arrived UPS 3-day today, was very well packed, and looks to have never been used. I'm quite pleased with its quality and potential. Oh, and it works great. The manual that came with mine is everything a manual should be, Operation, Circuit Description (4 1/2 pages alone), Block Diagram (detailed), Troubleshooting, Wiring Diagram, Schematics, Component Layout Diagrams and Parts Lists. If someone on this list wins the auction, ending May-16-07 13:29:44 PDT, I'll photocopy the manual for them if it's not available anywhere else (I haven't looked). The manual is dated April 82, although my test set was made in August 85. Portable uProcessor controlled tone DTMF decoder/encoder 2 & 4 wire. Audible monitor Intercom mode, includes adjustable amp, speaker & electret mike. 12 digit LED readout (2 x HP HDSP3733) Reset Button All I.C.s in sockets Contents: Separate Keyboard/Display and Processor/Power Supply boards connected by a ribbon cable, and an Intercom board with Volume control and transmit level controls. Processor board: MC6809 @ 1Mhz, 2x 2716, 2Kx8 CMOS RAM (MSM5128), MC6821 PIA, MT8865 DTMF Band Splitter, 2-of-8 Tone Encoder MC14410P, Keyboard Encoder MM74C923, Hex Bounce Controller MC14490VL, Watchdog, all the necessary glue, and power supply rectification & regulation Display/Keypad board: LED displays, Hex Keypad, 4 other momentary buttons, 3 other LEDs, 2x Hex Display Driver Controller MM74C917, Keyboard Encoder MM74C92312, and 12 digit LED readout (2 x HP HDSP3733). Great hacking potential, now to figure out what to hack it into. Guess a nice 6809 Monitor in EPROM would be a good start... I have no relation to the seller in this auction other than as a very satisfied buyer. Regards, Bill Dawson (/LURK OFF) -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean.