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AKAI 1710W R2R, OPT Question?

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zxx123

Member
Joined 2003
Hi, I bought a AKAI 1710W R2R in a local market.
and disassembled it in order to rebuild & to clean.

Hmm, after I finished the job, I found that I forgot what OPT wires mean. Anybody knows what red/brown (pri.)
and black/white(sec.) are for?

Thank you.
 

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