
shred_head
New member
Hello,
I got a Randall Power Tube 1000 II (the head),
and of course I got it used
First off, there were some issues with the Main volume pot, that you could have it all the way off, then bring up the volume up to about 2 or maybe 3, (everything fine) anything past that, and it was just dead air.
So i took off the pot, (which had a 151 capacitor connected to it) and had an electronics expert check it,
he said it looked perfectly fine,
he cleaned it up with some contact cleaner and sent me on my way
so I cleaned off all the old solder
tinned the pot, and tinned the wires (after recutting them and stripping them)
and tried it out, only for the pot to do it again,
then after about 5 minutes of leaving it at 2 or 3,
I could smell as if some plastic was melting/burning, after about 15 seconds of that, the amp powered off, and now won't power on
Could it be possible that it is just the tubes that need replacing?
would have the tubes being a bit faulty would have caused the main volume pot issue?
How can you tell if a tube needs to be replaced by physical appearance?
could something else be causing it not to power up now?
If this isn't really the right forum, or site, please direct me to where I may find help
thanks
I got a Randall Power Tube 1000 II (the head),
and of course I got it used
First off, there were some issues with the Main volume pot, that you could have it all the way off, then bring up the volume up to about 2 or maybe 3, (everything fine) anything past that, and it was just dead air.
So i took off the pot, (which had a 151 capacitor connected to it) and had an electronics expert check it,
he said it looked perfectly fine,
he cleaned it up with some contact cleaner and sent me on my way
so I cleaned off all the old solder
tinned the pot, and tinned the wires (after recutting them and stripping them)
and tried it out, only for the pot to do it again,
then after about 5 minutes of leaving it at 2 or 3,
I could smell as if some plastic was melting/burning, after about 15 seconds of that, the amp powered off, and now won't power on
Could it be possible that it is just the tubes that need replacing?
would have the tubes being a bit faulty would have caused the main volume pot issue?
How can you tell if a tube needs to be replaced by physical appearance?
could something else be causing it not to power up now?
If this isn't really the right forum, or site, please direct me to where I may find help
thanks
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