Kicker K-500

[Atlasta]

My faithful K-500 started acting all screwy last night. It will key up normally and then the output drops to near zero. Let it rest for a bit and it comes right back to normal, then drops off again. For a few days prior to this condition I noticed that output was actually up a bit until full warm up. Tubes check out >90% on my B&K 606. I'm thinking it's a power supply problem. AFAIK all the caps are original.

On a somewhat related note my Turner Sidekick 100 also took a crap at the exact moment I started experiencing amplifier problems.

Ideas? Suggestions?

Thanks

 

[fixer]

Possibly the relay. When the output drops off, use something insulated to push on the contacts and see if the power comes back.

Fixer

 

[Atlasta]

double post.

 

[Atlasta]

Possibly the relay. When the output drops off, use something insulated to push on the contacts and see if the power comes back.

Fixer

That was it! Thanks!

 

[fixer]

Good, I thought that might be the problem. I clean or replace a lot of relays in the Kicker, Swinger and Firebird amplifiers.

Fixer