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Last edited by Crashmast (Apr 5, 2023 11:02 am)
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Jelly Stone park, MD USA
First thing would be to try to find out who actually built it. Considering that it was sold at Sears, may have been Atari, but just a guess. At that time Atari's arcade div were building speech boards.
Also look over the circuit board to try to identify the chips. It seem likely that it is based on one of the TI TSP chips. This wiki may be of help identifying chips
http://en.wikipedia.org/wiki/Texas_Inst … eech_Chips
Another chip it may be based on is GI's SPO256
http://en.wikipedia.org/wiki/General_Instrument_SP0256
The other thing to look for is the main processor. The cartridges were more then likely roms. So if you can identify the cpu, in theory you could make your own programs.
So, $1 at a yard sale? Ill give you $10 
yogi
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an0va wrote:
Take a video!
yes - with direct audio I want to hear!
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Jelly Stone park, MD USA
Well seeing as you won't sell 
(was just joking, you def got a good buy, hang on to it)
Judging from the pin count of the connector, I would bet it's based on the TI LPC speech chips.
Here is a page on the TI 99 speech module for some background,
http://nouspikel.group.shef.ac.uk//ti99/speech.htm
And the TI serial ROM chips datasheet
http://www.ti99.com/exelvision/website/ … manual.pdf
The ROM chip only needs 12 pin to interface so that matches with the Computron connection. It's a 4bit serial device.
Just guessing from the release date of '86; it might use the TI TSP50C50 which had the Speech synth, a uController and ROM on the chip. May be labeled CM54129 or 169
Yogi
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sorry for necro-ing this but I had one of those as a kid and loved it. It had a ton of different activities you could do from math to vocab. I always envisioned sticking one of my nintendo cartridges in the expansion slot lol. FOLLOW ME