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Need recommendation for replacement of Vintage Conrad-Johnson PV-11 preamp.

My vintage Conrad-Johnson preamp developed a problem wherein the right channel is louder than the left.  I changed all the tubes and the problem went away -- for two days.
Now it's back.  I'm wondering if it's worth fixing or whether I should get a new or used preamp.
i LOVE the sound of it when it's functioning properly.
If I can't get it fixed, can anyone recommend a preamp that might have the same qualities of a vintage Conrad-Johnson?
rvpiano

Showing 5 responses by rvpiano

rvpiano's avatar
rvpiano OP
2,823 posts
 
Thanks, yogiboy, I didn't think of that
rvpiano's avatar
rvpiano OP
2,823 posts
 
Thanks for he recommendation hifiman. I've contacted them to see what they can do.
rvpiano's avatar
rvpiano OP
2,823 posts
 
Lo and behold, while listening, the preamp snapped back into proper focus again: both channels are equal.
I'm wondering if the issue is a loose tube connection. The tubes are new, but the problem was constant with the old tubes
Anybody have any suggestions as to what the problem is.
Lets see if it craps out again.
 
rvpiano's avatar
rvpiano OP
2,823 posts
 
Thank you tubegroover.  I wrote to Bill Thalmann about the problem.
He confirmed my suspicion that the issue had something to do with tube placement, and recommended a tube socket and switch cleaner.
I also asked what modifications he does on CJ equipment.
rvpiano's avatar
rvpiano OP
2,823 posts
 
Currently, with the new tubes, the CJ is sounding wonderful, especially on LP's.
i just hope it continues!
if not, I have ordered the tube socket and switch cleaner.
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