The Amp Garage

Thank you for your insight.

I got a reply from Fender and after sending them some photos of the tubes and their part number (073314) they referred me to this datasheet: https://tdsl.duncanamps.com/show.php?des=6L6GC

So GT6L6CHP is the same tube as GT6L6C? Did you identify them by their construction?

In any case I'll write back I get an answer from Fender.

I fully agree, that's a problem. I took the photos but forgot to post them, so here they are. I observed when I used the amp during the day and they didn't redplate, I turned it again now (no volume) in a darken room and I don't see any sign of red plating. Thank you for the tip. Yeah, I contacted T...

But first I need to know if these tubes dissipate 19W, 25W or 30W, right? I don't find myself comfortable enough to use a probe directly on the solderpoints since I can't attach an alligator clip in this amp - the sockets are directly soldered to the PCB. So my biasing method is flawed? I just divid...

Hello! I got a JCA50H amp that, although working, the previous owner swapped the tubes and I noticed they have considerable cracks due to the spring retainers, so I decided to replace them with a pair of Groove Tubes I had lying around. I can't find the datasheet of these tubes, only GT-6L6-C(HP), d...