Here's the schematic for the KISS transceiver's SSB generator. It reflects updated speech-amplifier and LM1496-based balanced modulator circuitry, along with filter relay and DC offset switching.
The DC offset pot serves two purposes. In the "SSB" position it works as a microphone gain control. In the "CW" position it unbalances the LM1496 chip for CW/tuning purposes. Switch S1a/b selects the function of the pot.
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