The Amp Garage

Where do you get a 10meg reverse audio pot as shown for
Intensity? I have som 3.3 RA for speed.

Looks like the Voltage doubler power supply. I have a 6bq5 standel amp but newer than this one and used the PNP Black SS modules. All modules are missing. The caps in mine look exactly like this one with the big black diodes in a voltage doubler with those Orange Caps. It put out 360 volts DC. When ...

What tubes are in an S80 ? I have an old Standel that used SS modules for pream and tremolo but missing in the head and 6BQ5 output tubes with a 12ax7 phase driver. It uses a voltage doubler power supply and runs at 410 volts cathode Bias. It then uses a screen voltage of 150 volts on screens to kee...

Very nice schematic. Thanks so much for doing this.

I like the topend. It’s smooth and sweet’ better than the d130 but the low end is limited compared to the d130 stiff cone and large alnico magnet. Overall it’s good but need to play it more. I need to breakin the speaker and see what happens. The weight difference helps with carrying the amp. I had ...

Ordered one for my Vibroverb. My JBL 130 went out and needs reconed. I decide to try one of these Fatbacks. I hope its a little more reminiscent of my H30’s in a 15”. Should be here on 7/10/. Tuesday. It will need broken in but looking forward to trying one. I expected them to go for more $. Antique...

Well 40 pluyears in a closet . I wanted a slide guitar and found a spray painted melody maker in a pawn shop. I added mahogany to the back to make a les Paul jr out of it back in the 70's and then never finished it and put it in the closet. Always loved Lesly West's tone on his les Paul jr . Sanded ...

You can use any vinyl but if you bump and tear,ding, whatever, the vinyl-cloth backing shows through. So if you use black , it should have a black cloth backing, If you go White , it should have a white backing. That way your amp wont have different color scuff and such. Looks nice longer.

I have an old Standel with voltage doubler but center tap ground. I increased the caps from 50 uf to 100uf and the voltage went from 365 to 405 volts. I'm sure there is a limit but thats under full load. bigger caps will increase the B+. not sure why.

Luthierwnc, why the elevated heaters? I thought that was only needed with a CF. Does it reduce noise or something?

Very nice find. Amp karma.

Nice pair. Would like to build one some day.

Princeton Reverb is what I learn more guitar licks on then any other amp.

I would by a quart first and do maybe a small cab before assuming its going to work great. Also if you have an air stapler and don't mind and or can hide the staples with baffle or back panel, you could use Elmers glue. Its just hard to hold tolex into place while the white glue is drying. So if you...

Thats a cool board. One thing. For the Vibrato to work you need to bias the tubes on the cold side to leave room for the modulating bias. I've thought about this as a 2 stage bias level. Cold bias for tremolo on and hotter bias for no tremolo. It could be incorporated in 1 board with 2 stage bias. J...

Beautiful Guitar. Great Job.