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CJ PV-10 no sound

I installed a couple of GE 12AT7WA's (bp triple mica, aquired on E-Bay)into my CJ PV-10 today, and as soon as it came on, snapping sound and a hum. Now, no sound coming from pre-amp. It appeard as if one of the tubes shined brighter than it ought to prior to this happening. I'm going to go and get a new fuse to rule that out, but it looks OK. (BTW, so much for a the tube tester. Tested very good, no shorts!). On a seperate note, if I'm not able to get it fixed right away, I've tried running my NAK 670zx directly to my Classe 15 amp, and running my X-Ray CD player through the cassette deck. Sounds great (although I ALWAYS miss my tube sound). Any problem with this? Thanks
countryjazz2

Showing 6 responses by countryjazz2

countryjazz2 OP
17 posts
 
It sounds a little like when you accidentally shut the pre-amp off when the amp is still on, but not as bad. No sound in the speakers whatsoever after that.
countryjazz2 OP
17 posts
 
Yes, I put the old tubes back in. I also replaced the fuse. No sound. A bit of a pop and hum after about 20 seconds (when it would normally come on, then total silence).
countryjazz2 OP
17 posts
 
What's really frustrating is that I recently bought an emissions tube tester, and it showed the tube to be good (with no shorts). So much for that...
countryjazz2 OP
17 posts
 
I tried switching out the tubes. I'm getting a pop when the preamp would usually kick in (similar to the one you get if you shut the preamp off while the amp is still on? All the tubes test OK, including the ones that I put in that appeared to blow it out.
countryjazz2 OP
17 posts
 
I don't know how to do any of that, and there is no hi-fi shop in my area. Hopefully I can find someone to go over it for a reasonable price. Thanks.
countryjazz2 OP
17 posts
 
Thanks to Gary G., I'm sending it up to Tom in North Florida. He seems like a great guy, and really knows his stuff. Maybe I'll get a few good mods done to boot. Thanks for the all the feedback...
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