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[Vero] Marshall Supa Wah

30.06.2012 UPDATE: Moved to old layouts – new version is here http://turretboard.knucklehead.dk/?p=1907

I took a lot of care to match mojo component selection to small vero (IC friendly). Components I had in mind as fallows: – IC friendly vero board – 1/2w Bredley CC’s – axial Philips 10uf 25v (small and sexy) – axial 0.1uF’s are Mustard Cap like in original unit, standing on the layout. Takes less space, and looks Marshall’ish. They did it like that in several units I’ve seen – 0.01uF are Erie ceramics. Distance between legs is around of 7mm. Fit nice into vero Supa Fuzz, as well as in here. You can find them on ebay UK – seller valvesetc – £0.99/one. I’m using that in my builds quite frequently. – Whipple halo replica. I’ll check how Arteffect’s SoD looks on it (if I remember right, SoD is smaller) I took much care to rout out close enough to grounding point to use shielding output wire Surly you can use other component types, like 1/4w resistors, whatever – layout can be even smaller. It was drawn with my favorite part selection in mind, with something I’m using and I have

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[Tagboard] Marshall Supa Wah

Odd machine! VOX Grey knock off on germanium transistors. I don’t know much about this one, If you have more info then speak up bro!

30.06.2012 UPDATE: Moved to old layouts. New page is here http://turretboard.knucklehead.dk/?p=1907

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[Vero] Marshall Supa Fuzz

This layout matches original 1968 Marshall Supa unit, component placement and trace cuts are dead accurate to the unit I traced from, sadly, only from the pictures 🙁 Check out YT clip below for some additional porn, LMAO after I’ve watched it

Supa Porn Demo

Update 27.09.2011:

Few more Supafuzz variant. All layout are based on gutshots of original units, they’re different from each other and are all worth to try:

– Marshall Supa Fuzz.pdf

– Marshall Supa Fuzz MK2.pdf

– Marshall Supa Fuzz MK2 + 100R.pdf

– Marshall Supa Fuzz Proto.pdf

– Marshall Supa Fuzz PCB.pgn

Presented layouts includes full off-board wiring with shielded wire, no LED, no power supply socked – as original! Old files deleted

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[Terminal] NPN Rangemaster with Peter Davidoff mods

NPN version of legendary Rangemaster Treble Booster. Idea behind it was to keep retro sex appeal, with added “modern” features.

Get the file here [.pdf] Project revised 21/12/2011

So I’ve added LED, NPN transistor (OC140 or other germaniums, or low gain silicon), diode between emitter and base to help with the stability, and polarity protection. Also the cap blend-in option was added. The idea for it was taken from Peter Davidoff (R.I.P. Sir! We all miss you) also known as SPeter – FSB.org moderator. Here’s a short description from him, from when he still was around with us.

“Two years ago I modded my Rangemaster clone by inserting a pot and a second higher value cap at the input.Instead of panning between the two caps the pot simply adds the higher value cap to the value of the first one thus allowing more mids to pass through the input of the circuit. I got this idea from Joe Gagan`s Easy Face. My values are 100K linear Pot , 0.0056 uf for the first cap and 0.022 uf for the second one! Of course cap values can be different according to the specific needs of the builder!”

Mine cap values are different (4700pF and 47nF). Theoretically it goes from standard treble boost, by the mid boost to the full boost with just a twist of the knob. Similar idea was used with D*A*M Red Rooster

More common PNP germanium also can be used, don’t forget to shift the electrolytic caps around. For proper working ability take the special care to bias it up. On RG.Keen’s geoefx web page you’ll find the article about the RM’s. The thing is noisy, use metal films. Mine was build with sweet looking and high quality black Holco resistors. It’s gone now, and I miss it a lot…