I have a barely used 3400HP that started blowing the inline fuse whenever I keyed up on the mic.
I suspected the finals were blown. I removed them. They didn’t have any markings on them. I have a small bag of finals labeled c2078 in my parts bin. They looked identical to the ones I removed as far as shape goes. I didn’t really have anything to lose and I was just playing around, so I went ahead and soldered these into the radio. (And why are there what appears to be 3 sets)
Well the fuse blowing problem was solved. But now I have no transmit. When I key up on the mic, The needle on the meter goes up a little bit but stays put when I speak and it doesn’t modulate. I tried another known good microphone, same thing.
We have another radio in the house, on a different antenna in a different room. You can just vaguely hear some faint scratching from this radio to that radio when I talk and you can hear when I let up on the key like a small static pop. But that’s it.
Any pointers? This is just a hobby I’m learning
I suspected the finals were blown. I removed them. They didn’t have any markings on them. I have a small bag of finals labeled c2078 in my parts bin. They looked identical to the ones I removed as far as shape goes. I didn’t really have anything to lose and I was just playing around, so I went ahead and soldered these into the radio. (And why are there what appears to be 3 sets)
Well the fuse blowing problem was solved. But now I have no transmit. When I key up on the mic, The needle on the meter goes up a little bit but stays put when I speak and it doesn’t modulate. I tried another known good microphone, same thing.
We have another radio in the house, on a different antenna in a different room. You can just vaguely hear some faint scratching from this radio to that radio when I talk and you can hear when I let up on the key like a small static pop. But that’s it.
Any pointers? This is just a hobby I’m learning