[Collins] need early 32S3 schematic

[Dr.Gerald Johnson]

My 7th edition 32S-1 manual shows a four diode modulator that matches your 
early 32S-3 description, mostly. It has a 100 ohm resistor in parallel with the balance 
pot, not connected to the wiper. Two resistors connected to wiper reduce the 
balance adjust range but make the adjustment less sensitive to a dirty wiper.

The early 32S-3 manuals surely were somewhat of a transition from 32S-1 which 
came from the factory with a two diode balanced modulator later changed to a 
4 diode balance modulator. I'd look for service bulletins and manual errata sheets 
about that 32S-3 schematic and balanced modulator.

73, Jerry, K0CQ, Technical Advisor to the CRA

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