vintageHIWATTconvention.com

That sounds ominously like the output tubes red-plating. At night, get it making that sound, turn off the lights, and look at the output tubes. The heaters will be glowing orange, but the larger metal parts should not be. (Every time I read these stories, I think "darn, I don't charge enough f...

I don't think I get emails when I receive replies on this forum - missed your response! Thank you for the cap information. Really helpful. I'm not sure what happened to the amp. I bought it from Guitar Center and they didn't really have any info on it. It looks like maybe someone spilled some soda/b...

A bunch of info on my amp is at this previous thread: https://vintagehiwattconvention.com/forum/viewtopic.php?f=2&t=2177 My main questions regarding the info below the break: Is the repair cost fair? What could cause this sort of hum? Since there's a chance the hum was introduced by the tech wit...

The caps do look original (all have the blue paint on the solder joints). There are no caps on the back board (if I understand the backboard to be the other side, where the tubes are mounted). Just side-mounted in the chassis. This is one of the last runs of Hylight era amps. Probably a 1981? I wish...

Hello All, Wonderful forum - so glad it exists with such good advice! I recently bought a Hiwatt Custom 50 SA112 (Serial: 14593) from Guitar Center (got a deal) and I'm pretty sure it needs the caps replaced among other repairs. Rundown of the amp: - Hylight, but PCB - Original Fane speaker - Partri...