This is a replacement for the TRC-415 schematic on CB Tricks. The one on CB Tricks is alright for printing purposes, but it has two pages. The schematic is upside down and the other page is blank. I read most of my schematics off the monitor. In the near future I’m going to restore this radio and convert it over to the Cobra 4 pin standard. I plan on eliminating the undesirable mic connection on the bottom along with its metal enclosure. The 4 pin connector will be mounted on the side chassis. I'll post an update when it's finished.