Tube Amp Archive

Reeltarded wrote: ↑Sat Oct 11, 2025 9:08 pm Lovely, that wood is the best ever for quiet or loud. It acts like a Super 400 facing two stacks when you hit about 95db! lol

I LOVE the spalted Ricky thing.

The Tele pickups start screaming long before the Wood hums.
It does look at little spalted but it's Black Limba.

Send it back. Too much money for all those issues, and i'll bet there's more to come. No schematic? WTF? It will be cheaper and not much more work to do it ypurself.

Oh, sorry i thought yours was a 2x10.
But yeah, more square inches equal more big grins!

I've always been a Strat guy. My first electric was a Strat copy. Then in '80 I bought a Les Paul. Tried to bond with it but no joy. 5 Strat's since then. Current and final lineup is an original '66 and the Paulownia Strat i built last year. It's perfect. No need for more, or parts swapping etc. I'v...

ampdan wrote: ↑Thu Sep 25, 2025 8:18 pm I slapped this together with parts I had available for a local Blues Jam back line.JPG[/attachment].

IMG_2644[1]. [/quote] I love the 2x10 speaker option. It sounds so much better than the 1x12 I was using. Here's mine: [attachment=0]20250622_045002.jpg

I love the 2x10 speaker option. It sounds so much better than the 1x12 I was using. Here's mine:

Signal at the jack, and no sound means the speaker or cable is bad, or the jack is missing the return (if your scope is using the chassis as a ground.
That square wave indicates an overdriven amp, if it had a sine wave input. Hi power and no load equals disaster.

Does the bias on the grids remain stable? And the plate voltage doesn't drop excessively on conduction?

Check the code on the reverb tank, or Ohm it out, to determine the grounding of the in and the out. Then look at the circuit to make sure the grounding strategy is appropriate. The tank may be wrong for the circuit.

martin manning wrote: ↑Wed Sep 10, 2025 9:34 pm It was a good try. Unfortunately, he let the smoke out.

Kirk told him the OT was too small.

Stardate 2465.23.6570, First officer Spock fine tunes his parallel single ended design.

Helen Keller cap

In case anyone else has struggled with storing a partly used tube of silicone, my go to methods for the past few years are: Stretch a piece of electrical tape over the opening then screw the cap back on, making sure you didn't trap any air inside. Or, if you don't have electrical tape, squeeze out ...

A keeper then. Congrats. This looks like a "find the stoner" picture.

I don't often see discussions about the Sonaro. It was designed to be a bass amp. Very simple but heavy combo amp. I played bass in a C&W band during '67 and '68. The band owned all the equipment. The bass rig was a Fender Precision Bass and a Sunn Sonaro. I was studying electronics in a trade scho...