{Collins} KWM-2A transmitter problem

Thanks to all who responded.  Here is what is happening to the KWM-2A.   After scoping the tone signal to the grid of V3A come to find out that the balanced modulator diode assembly is missing and the circuit has been reworked with some kind of a modification.  Also noticed that the switching assembly, located within the PA cage has some burnt and bent contacts so it looks like I will be doing some rewiring.  It also needed a on/off switch, C106 filter assembly, and xtals. Good winter project next season. Thanks for all of the input. 

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