[MRCA] AM-142/AIC Amplifier Query

[DSP3]

I have a question.  I got a pair of these "mixer" amplifiers at a 
hamfest.  Looking at the schematic and reading what little info is 
available, might I assume that these are simply unity gain amplifiers 
with the input and output Z as specified on the transformers?  If I were 
to disconnect the feedback windings of the output transformer and ground 
the low side of each input secondary, would this revert the thing to a 
simple amplifier?  Or, am I missing something?  Also, what's being 
mixed?  Looks like the mixing, per se, is done back at the master unit.

Jeep - K3HVG
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