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RE: Takes me back to '81

Roy is the resource I used to update my interfaces.

The panels are wired in parallel - three from each panel. With later interfaces like the ones I use, the signal cables are terminated with a curved spade connector while the bias terminates with a pin. I'm traveling and don't have easy access to internal pics but will be happy to post them later this week. I also have a schematic. Another great resource is found on DIY Audio where another ex-employee named Andrew goes by The Acoustat Answer Man and has been helpful to many.

There were many variations on the interfaces, some of which were identified a being a "Red Medallion" or "Blue Medallion". You may be aware there were one, two, three, four, six and eight panel variations and some like the 2+2, 6 and 8 were stacked sets.

So long as the transformers are good, the rest of the components can be easily replaced.


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