2510 alc not working

[tvrc18]

I was going to turn down the ssb power a tad on my 2510 but is seems to have no effect on power out. Anyone have any ideas. I need to check the pot maybe it has gone south. I could before vary the ssb power with it but not any more.

 

[ElectronTubesRule]

Alignment link to make sure you have the right pot

The Defpom HR 2510 Alignment page

It is easy to damage a pot so it could be bad. I always act like I am trying to remove something from a persons eye if it is an iron core pot.

 

[tvrc18]

Correct pot it is labeled alc, vr104.

 

[tvrc18]

Found out why my alc pot is not working. The guy I sent it to for alignment said he dis-abled it for more modulation on ssb. He said the 2510 can stand having this done but most radios can not. He also said they just don't have enough adjustment in that circuit and when you cut it loose on a scope and analyzer they come to life. Just don't use a power mic he said. I am not sure to believe him or not.

 

[tvrc18]

I connected the alc back up and turned down the ssb power to about 25 to 30 watts pep. wish I had a scope to look at the signal but it has to be cleaner with the alc in the circuit than with out.