Had a relative pass away and have been going through his radio
equipment. I'm working on bring his Mark III back to life, seems the
receiver is working but transmitter is going to need some work. The
output power seems fine but modulation is only about 30% if you're right
into the mike. Forget about the ping, with this low modulation it
ain't going to happen, at least that's what I'm thinking.

Any rebuild pointers from anyone that has worked with these Brownings?

Thanks