Hi all,
When I tuned up my uBITX everything was fine. I have since been correcting the front panel wiring and now it does not transmit. The relays do not go over, there is only 1 volt on the PTT line (Orange) Although there is 5 volts across the straight key, nothing happens on 'key down'. I have checked the wiring several times, using W4RJP's circuit of 21st March (FB RJP!), there seem to be no bad joints, or burned components.? Can anyone advise where to try next, please?
Geoff G8BMI