I had such great luck getting the other radio straightened out on this site thanks to Handy Andy, it's now time for me to jump to the next radio and try my luck with it.
It's old, and possibly been in some dirt at some time in its life. It belongs to a long time friend of mine who had it in a stash of radios that didn't work but there are a few he does want to try and get going. This is one of them.
It's a Dirland Superstar 3900 (EPT360015c) with a single final (1969). It's issues are listed below:
1. No xmit (fixed by replacing final)
1. Carrier on SSB (fixed by readjusting bias)
2. Regulator gets hot (fixed by above)
3. AM carrier fluctuates between 2.5 watts to 3 watts with no audio applied, carrier jumps, erratic. (Not fixed, it's what I'm asking for help on)
4. Clarifier out of line and off frequency (fixed by realigning the clarifier circuit and adjusting xmit frequency)
Nothing in the radio is getting hot, getting 25 watts swing on peak and 10 watts swing on rms. Audio sounds great on listening station. Only issue with the radio is the am carrier fluctuating (flickering, jumping up and down).
Anyone have any suggestions?
It's old, and possibly been in some dirt at some time in its life. It belongs to a long time friend of mine who had it in a stash of radios that didn't work but there are a few he does want to try and get going. This is one of them.
It's a Dirland Superstar 3900 (EPT360015c) with a single final (1969). It's issues are listed below:
1. No xmit (fixed by replacing final)
1. Carrier on SSB (fixed by readjusting bias)
2. Regulator gets hot (fixed by above)
3. AM carrier fluctuates between 2.5 watts to 3 watts with no audio applied, carrier jumps, erratic. (Not fixed, it's what I'm asking for help on)
4. Clarifier out of line and off frequency (fixed by realigning the clarifier circuit and adjusting xmit frequency)
Nothing in the radio is getting hot, getting 25 watts swing on peak and 10 watts swing on rms. Audio sounds great on listening station. Only issue with the radio is the am carrier fluctuating (flickering, jumping up and down).
Anyone have any suggestions?