ampage
Tube Amps / Music Electronics
For current discussions, please visit Music Electronics Forum. New: view Recent Searches.
New: visit Schematic Hell!
The sunn still shines online!

 
Listen to great tunes streaming live right now!

ampage archive

Vintage threads from the first ten years

Search for:  Mode:  
previous: Kobbs I've had, currently have, will prob... -- 9/2/2003 2:29 AM View Thread

Re: Common Crate VC Problem??

9/3/2003 5:05 AM
Enzo
email
Re: Common Crate VC Problem??
By far THE most common cause of levels being erratic or intermittant on amps in general, is the contacts on the effects loop jacks. Patch a cord from send to return on the loop jacks and see if the sound restores. If so that was the trouble. Clean the contacts or replace the jack. I use a small burnisher on th contacts and almost never have to change the jacks.  
 
No effects loop? Same test for power amp in jack and preamp out jack.  
 
ANother thing I see mostly in Crate amps is the amp wanting to switch channels all by it self now and then. This is almost always the footswitch jack. The contacts that close when there is no footswitch get dirty or oxidized and they don't work. Clean them or replace the jack.

 
Replies:
Kobbs Thanks for the ideas, escpecially t... -- 9/9/2003 3:52 AM