The Amp Garage

Single ended UL 75 watt 28 lb output. The darn thing tips the scales like does many combo amps with a 10” speaker ! So one EL 84 was loud enough in a band setting with a Drumer? How many speakers was the guy playing through? That is a crazy OT, I would not want to haul around an amp with that in it...

I played a date a couple weeks back with a fill-in guitar player that played a Tele through a modified SE record player amp (He thought a Cailifone, internet is saying a Newcomb). It sounded great & it was amazingly loud, even in a band setting. I gave it a quick look as we were packing up & was abl...

Sorry to hear this as I have one of those, like it very much & play it regularly.

I know that as a model, the smaller PF-500 had a lot of shut-down issues, but it seemed like the PF-800 wasn't prone to that.

Will be following your progress with interest.

Another option is to add a dwell or reverb send control, which variably attenuates the drive signal of the reverb circuit. It is as simple as swapping in a 1M pot in place of the 1M resistor to ground that is connected to the reverb driver grid. You could even temp it in to see if you like it. I inc...

I am not a fan of soldering to pot cases. It's not easy to execute neatly and relies on the bushing's electrical contact with the chassis, which will deteriorate over time. See in this thread how I reimagined the Fender AB763 ground scheme: https://ampgarage.com/forum/viewtopic.php?p=428861#p428861...

The only part that I'm slightly baffled by is how that will work for the top/front that is angled 30 degrees back toward the back of the cabinet. Its hard to visualize how the router bit will cut into the angled edge and how it will be guided in doing so. Theres a little more work to do to realize ...

I have dabbled with PCBs only recently & have been using https://easyeda.com/ . From what I can tell, the preferred method is create a schematic with all your specific component part#s/footprints specified & the program will generate a physical layout, but I have never used it that way, so I am not ...

https://vintagefenderamprepair.com/blogs/information/fender-date-codes If the page referenced is correct, the "OI" on the tubes charts would denote September 1965 I once knew what the "Production" # was but cant seem to find the info. But as Martin mentioned, look for the rubber-stamped code inside ...

I have added a fitted secondary plate on a few. Stiffens things up quite a bit.

As I mentioned to you in the other thread you posted on this, I built a (massive) bass amp for a friend and it is paired with two 15" TL606 Thiele cabs each loaded with Eminence 15" speakers. The amp has four 6550s running in ultralinear for about 140Wrms. The entire power supply is choke filtered ...

You might want to look into the fEARful bass cab plans that were/are out there, as those have an extended range as they include a mid driver. I was an early adopter of the TL cabs and gigged for decades (on bass) with a pair of TL606s, which I still have. I also used many TL806s for PA, monitors, et...

Forgot to mention that the Rigol also has VESA mounting points so you can mount it off the bench on an articulated TV mount.

Have you tried cleaning the boards and removing the wax. Lyle Caldwell claims it fixes the issue, though from my experience there was a slight amount of voltage conducting through the board. I had seen his videos & DID try cleaning, then deep cleaning, but no luck. They were really, really caked wi...

Rigol DHO804 you can unlock all the features with hack I was typing & looking for a pic, as nekors reply posted. I am fairly new to scopes myself & after some learning time with a borrowed 20yo scope, I bought a DHO804 last year. I think most of the new digital scopes have pretty similar capabiliti...

Those are pretty tricky, hadn't seen them before.

I have been generally switching over to radials, those offer one more option.