Netronics Phoneme generator info

Francois Dion francois.dion at
Fri Nov 7 18:35:10 CST 2014

El Nov 7, 2014, a las 4:17 PM, Jules Richardson <jules.richardson99 at> escribió:

> On 11/07/2014 02:47 PM, tony duell wrote:
>>> 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)?
> 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.)

Votrax speech synth

> 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.

This will fill in some blanks:


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