Fix Audio Popping on the 785/796
From The RadioReference Wiki
The popping and other spikes on the audio from the line out jack is caused by the audio amp turning on/off - the following procedure works with both the BC785D and BC796D...
- Take the covers off
- Find the large connector in the center, J6 with one blue wire at pin 1 and the rest are white. The tap needs to be made off the blue wire.
- Flip the radio over and cut the trace feeding the tip contact on the Tape/Record jack then soldered on a jumper from that to the pin 1 of J6, the one with the blue wire.
- Optional but also a good idea; Cut the traces on either side of the pin for the ring contact on the jack, the Tape/Record jack is a stereo jack; isolate that contact so you can insert a mono or stereo plug; and there's no chance of mixing in the switched audio source
Thanks to KB0NLY and N8CHB for the procedure