January 15th, 2010, 07:30 PM
I had my Classic 30 going for a few hours the other night, when out of the blue I started to get a volume fade then complete silence. I checked the tubes and the power tubes were not lit at all.
I tried turning on and off. Went direct into the amp with no effects and still no sound. I turned it off for the night and tried again the next day. Still no sounds.
I recently replaced the power tubes with JJ's and even tried to switch back to the old tubes with no luck.
Any help or thoughts before I take it into the shop?
January 15th, 2010, 08:38 PM
You blew a internal fuse. Contact Peavey Customer Service for the Correct fuse to get and get some from Radio Shack or whatever hardware store carry's fuses.
January 16th, 2010, 07:22 AM
Thank you tazzboy. I hope it's that simple. Have you had this happen?
January 16th, 2010, 03:27 PM
No I have read about it happening so I would suggest that route first. Be Careful though when you do start messing inside the chassis one touch of those capacitors and you can be seriously injured or DEAD!
I push really comes to shove then take it to a tech.
January 16th, 2010, 07:03 PM
hapened to me when I had a C30...it was an internal cold solder joint
January 16th, 2010, 09:22 PM
and that's another suggest if ain't the fuses the it's the cold solder joints.
January 17th, 2010, 11:16 AM
This happened to me when I had a C30. Apparently the amp is wired in such a way that if one tube is out, they're all out. All that my tech could think of was that one of the power tubes wasn't seated properly, so none of them worked. After he removed the tubes and re-seated them, the amp worked.
January 17th, 2010, 04:29 PM
Yes the Classic 30 and Delta Blues Series are wired in Series and that you can not pull two of the power tubes to reduce the power.
January 20th, 2010, 07:58 PM
thank you all for the info.
July 3rd, 2010, 12:19 PM
I'm having a fade problem with mine now. I bought it used (it's the limited edition in the sunburst quilt maple cabinet). Before the first gig, I noticed one tube glowing red and I didn't have a matched quad sitting around so I replaced the one bad tube with a known good one. Amp sounded great all night and then the sound faded out during our last song of the night. Next day, the amp worked perfectly at home. I picked up a matched quad in the proper range for the fixed bias and played the amp at home for a while. Left it on for 11 hours straight too. Worked fine. Took it to the gig last night and it worked fine during sound check. Start the gig (a private at a country club) and it started fading out and coming back on the very first song. I ended up having to go direct for the first song and then ran home to get another amp (my backup Crate powerblock in the car was useless as the speaker in the PV is not wired with a 1/4" plug).
I'll swap out the preamp tubes, but the amp sounded fine when it wasn't fading in and out. Any other guesses?
July 3rd, 2010, 12:25 PM
July 3rd, 2010, 12:25 PM
July 3rd, 2010, 04:39 PM
Fading in and out usually means time for power tubes. Preamp tubes don't wear out as fast as power tubes do.