Schematics Page
The following schematics are drawn with Affinity Designer, in most cases, using the original schematics from the manufacturer. Higher resolution images are available by clicking on the schematic.
Disclaimer: No guarantee of accuracy is implied, although I have made every effort to faithfully reproduce the original schematic except where I have modified the orginal circuit.
Ameco CN50 - 6 Meter Converter
Ameco TX62 - 6 Meter Transmitter
Hammarlund HQ-170A - Ham Band Receiver
When I bought the HQ-170A it didn't work well and I wanted to trace some of the wiring. I also wanted to be able to mute the receiver when using a transmitter. It was unclear to me how the mute was being done and looking at the schematic in the manual didn't do much for clearing it up. So I redrew the schematic and made an attempt to clearify things in my mind. Well, I went a bit overboard and started coloring the grounds green and the B+ lines in red. It's a bit rough as it was a judgement call when B+ passed through resistors, but here is the result. Hope it helps someone.
Heathkit DX-40 - Ham Transmitter
Swan 350 - Ham Transceiver
6 Meter Homebrew 20Watt - Ham Transmitter
