donkeystyle
New member
i'm having a problem with my amp. i think it's most likely a pre amp tube, but i want your opinions. i was going to test it tonight, but i forgot it at the other guitar player in my bands house, so i wont be able to test it until next tuesday.
ok. so this is what it's doing. it's popping. when i turn the amp on, the for the first couple minutes, it doesn't do it, but once the tubes warm up, it starts and it'd not random. I mean I could probably keep time with it. i've eliminated guitar cables, speaker cables, and effects pedals as the problem. i can turn the standby switch on and leave it like that for a couple minutes and when i turn it back off, it doesn't do it for about 30 seconds, maybe a minute.
some history on the amp: a few months ago, i had a problem with it.....it's a rivera knucklehead and there's a known problem where one of the resistors on the v3 part of the board goes out. I replaced the resistor with the one rivera suggested, it fixed the problem i was having, but then the channel was really quiet. i didn't have the time or experience to trace the problem, so i took it to a tech. i had him clean my solder job up and check it out. he said he found 2 other resistors that were bad and replaced them. I had just bought new pre amp tubes from another store and he told me that one of them was messed up.......he didn't explain what exactly was wrong with it. he didn't tell me I shouldn't use it, so i just used it. I'm thinking maybe that's the tube that's causing the problem.
what do you guys think? tube problem, or problem with some of the work that has been done?
i guess this is kind of a waste of your time,since i'm going to replace the tubes on tuesday and i'll find out for sure then, but i can't stop thinking about it.
ok. so this is what it's doing. it's popping. when i turn the amp on, the for the first couple minutes, it doesn't do it, but once the tubes warm up, it starts and it'd not random. I mean I could probably keep time with it. i've eliminated guitar cables, speaker cables, and effects pedals as the problem. i can turn the standby switch on and leave it like that for a couple minutes and when i turn it back off, it doesn't do it for about 30 seconds, maybe a minute.
some history on the amp: a few months ago, i had a problem with it.....it's a rivera knucklehead and there's a known problem where one of the resistors on the v3 part of the board goes out. I replaced the resistor with the one rivera suggested, it fixed the problem i was having, but then the channel was really quiet. i didn't have the time or experience to trace the problem, so i took it to a tech. i had him clean my solder job up and check it out. he said he found 2 other resistors that were bad and replaced them. I had just bought new pre amp tubes from another store and he told me that one of them was messed up.......he didn't explain what exactly was wrong with it. he didn't tell me I shouldn't use it, so i just used it. I'm thinking maybe that's the tube that's causing the problem.
what do you guys think? tube problem, or problem with some of the work that has been done?
i guess this is kind of a waste of your time,since i'm going to replace the tubes on tuesday and i'll find out for sure then, but i can't stop thinking about it.