Posted By
TLC
on 2009-09-10
15:01:58
|  Re: SID-card scheme?
Haven't seen this one before. The picture suggests this is a re-make of Solder's original card, with slightly different layout, re-designed analog circuitry, lacking the original design's (rarely used) audio signal pass-through and audio out switch possibility. The board seems to be handmade (possibly a prototype?). I don't know how/when this one had been created (I couldn't see the date codes of the chips and the SID's manufacturing code of 1990 doesn't really give any extra info) but it's clearly not an old / independent design (as opposed to Csory's or BSZ's old prototypes). Maybe someone's prototype of a (presumed) new run of SID cards, based on a previously known-to-work solution (Solder's)?...
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