Tube Amp Archive

So, final plan with schematic, with some context. As mentioned above, I built an adapted version of a #124 with just 2 6V6 tubes in the output section. Since I had no prior experience with D-style amps, I chose to use an available PCB with its associated schematic. The amp sounds great! However, I w...

The chassis mounted footswitches may be the thing that will keep you from the joy you are after. Check out this diagram for some understanding. After you stare at it long enough, you will probably figure out how to incorporate those switches. Thank you. I had not considered using latching relays. Y...

I think this will work with Mogami W2789 cable -- 8 conductor with spiral copper shielding as ground. Use whatever 8 conductor DIN connector you have around (these always have a path to ground, therefore "9 conductors" is possible). It would be nice if there is a way to allow each switch to operate,...

"Alternative Footswitch Logic" shows how a 5 conductor wire can be used to wire a footswitch for both PAB and OD relays. When the footswitch LED is lit, the relay is energized. I may use this scheme. HOWEVER, the footswitch becomes mandatory and overrides the cabinet switches. Of course, this is NOT...

I recently wired up a #124 using a PCB and related schematics. The amp sounds great :D , and of course is so much different than my Fender amps that I am in the process of learning how to use it. However, the footswitch did not work as I thought it should. In an ideal world, no matter the position o...

Who is the heir to HAD's business records? I would think that he maintained schematics of his builds, and that these records should still exist. I (for one) would love to trace the odyssey of his quest for tone, and what better way to do that than his schematics . . . not that we'll get to see them ...

Did you decide on what to build? I decided to build a "hybrid" of #124 pre-amp, coupled with a "low power" 6V6 output section (using the "3rd Gen" circuit). I may have to dial down the volts later in the build, we'll see. Frusciante89's schematics and layouts are well done, and the schematics allow...

Thank you for the reply. Exactly what I needed! If nothing else, the nomenclature (eg, 124=Low Plate Skyliner) is incredibly helpful.

I've been over the schematics, and haven't decided between Skyliner or 3rd Gen.

Greetings Masters of the Overdrive! I've been an amp builder for the past 5 years, mostly building Fender type circuits, but now "need" to venture into Dumble territory. aaelectronics has a board that allows the builder to construct a 102, 124, 183, or 3rd Gen amp. So which one to build? This being ...