UM1082 modulator scheme

Discussions about Sinclair ZX80 and ZX81 Hardware
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zx-heinz
Posts: 36
Joined: Thu Apr 27, 2017 8:56 pm

UM1082 modulator scheme

Post by zx-heinz »

Does somebody have the scheme of the UM 1082 modulator? This modulator is used in the ZX81 USA.
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