The Amp Garage

I haven't gone through the tech details, but the amps sounds fantastic in the mp3!
Well done!
My interest is mainly the positve fb at the driver tube. Looking into that soon.
Thnx for posting!

Alodined vs anodised fwiw you can have aluminum anodised in almost any color.
In contrast: Alodining protective layer is thin but has the benefit for electrical conductive properties. No need to scratch off at grounding point and potentiometer holes.

What I'm saying was that you only need the dxf outline of your frontplate(export in Autocad) and do the artwork including the fonts in Inkscape. No need for Fusion360.
Afaik the front and backplate pdf is also available in the github repositories Ryan Colgan posted.

When I import them into Autocad its all distorted. I need my own logo on it too! I never used autocad, Fusion360 is what I used. When import artwork, first thing was to export the outline of the frontplate of the Sss to pdf or dxf. Then import to Inkscape. This way you have the correct dimensions t...

Are the plate resistors on v1a en v2a: 2k2, instead of 220k? Other things to check are tyding up your wiring fe. I see a plate wire touching the grid resistor thats a good recipe for oscillation. Where do you see these wires touching? ive messed about with them for about 2 weeks. Resistors are all ...

Are the plate resistors on v1a en v2a: 2k2, instead of 220k?
Other things to check are tyding up your wiring fe. I see a plate wire touching the grid resistor thats a good recipe for oscillation.

Thanks Electron. Am I correct to assume the voltages look in line with a 102? Anything that stands out? When measuring your voltage/current for biasing with the cathode resistor you also measure screen grid current. Your tubes in current state are biased around 46% instead of 49/50%. Try bias a lit...

Thanks for gerbers guys! Been wanting to build this one for a while... I hope it's okay to offer these extras up here—I certainly don't need all of them, and there are minimums on PCB orders. 4 sets available. Actual cost + shipping only. That's $33 per set plus shipping to wherever you are—ideally...

martin manning wrote: ↑Mon Jan 12, 2026 2:09 pm Are you saying the FET boost sounds fine when in OD but weak in Clean? How is the FET bias? What are voltages to ground at the top and bottom of the FET's 10k drain resistor?

I think he is referring to PAB.

Wheres the best place to get Chassis custom made in the UK? I don't know, try these steps: 1. Send the files to different metal factory for a estimate on 3mm alu, cutting, putting, welding. 10 chassis do usually have a good price point compared to 1 chassis. 2. Contact several printer to do silkscr...

Nice build sofar Bas, looking great. Those etched pcb with attached eyelets are a nice detail.
I see some parts are missing, are you looking for specific parts?

Great build Glenn! Looks fresh with those pure wooden cabs. Maybe in the far future I'll do another run. I just have to much work on my hands to handle this. A Also my last experience under new US import rules were a paperwork nightmare on both US import rules and shipping company rules. Locallly ma...

I use Sprint Layout for pcb. In case I would have to start all over I suggest Kicad by the tutorial Martin posted. The reason for this is simple. Even a simple design can have faults when not connected to a schematic. I learned this the hard way when I used a known Fet design. Made a mistake; contac...

Unfortunately I don’t. Can’t really find any info on these transformers, only thing I can find is the schematic for the Deuce which shows a fwb. And you have the colors of the secondary wirings. The fwb is for the B+, The secondaries with 1 diode is the bias circuit. You can use the standard ods bi...

Thank you for posting these! I've never had PCBs made before. Is there a company anyone would recommend? Matt J. JLCPCB, PCBWAY, PCBWAVE. Local is also worth to check out but keep in mind that most small companies have them done in China anyway and are very expensive. I had good experience with JLC...