7 Nov
2014
7 Nov
'14
1:17 p.m.
On 11/07/2014 02:47 PM, tony duell wrote:
The CPU is an RCA 1802, there's a CDP1852 which is a parallel I/O port IC,
RAM is a pair of 2114's, and a 24-pin IC which has a sticker on top saying
(unhelpfully) "IC-584" (but I expect it's ROM).
Finally we have a 22 pin IC labeled "SC-01-A" - Google tells me that's the
actual speech synthesizer IC. The remaining ICs on the board are all
simple logic (74xx etc.)
I found some evidence that the boards were advertised to the hobbyist
market in Byte and the like back in the day, so it's possible that what
I've got is exactly what the owner received; there never was any case and such.
cheers
Jules
Random find in
my local book store's pile of scrap electronics heading for
recycling - a Netronics Phoneme speech synthesizer. IC dates all around
mid-1982.
What are the main ICs on the board (basically anything other than TTL, 4000
series CMOS or common op-amps)?