Just acquired this radio and noticed that cap C85 missing. It was snipped out. Don't see any of the popular mods mentioning this?
C85 is a .0022uf mylar cap connected between the mic input line and ground just before the mic signal enters the mic amp (TR29). It was probably removed to change the freq response to the mic amp. Leaving it out should not cause any problems. You can put it back in just to see if the xmit audio sounds any different. 73s.
- 399
I wonder just how removing that cap changes the transmit audio? Maybe more low end?.