Recent content by HamishR

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    This week on the Breadboard: The Vivie Minerva (Wise Sheep)

    I have built this on a Sheepylove PCB believing it to be a variation on a Bluesbreaker theme. It sure doesn't sound like one anymore! It's a very interesting sounding pedal. Higher gain than I would generally use (a LOT higher gain!) but some cool sounds. Any way to reduce the gain a bit...
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    Mini Pedal format?

    Most of the pedals I build are in 1590Bs with top jacks. I use Lumbergs for IN, OUT, and DC.
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    Vacuum Tubes

    The only JJs I've ever had problems with are recent GZ34s, I'm sad to say! I must have bought from a bad batch because I've had 2-3 go all fireworks in amps. Quite spectacular if you see it happen. Not good though. They've just blown the mains fuse so no harm done. I love JJ 6V6s, EL84s, 6L6s...
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    Vacuum Tubes

    I love some NOS preamp tubes. But I never got into NOS power tubes because I could never afford them, and the risk involved buying online for something of unknown provenance is high. I once bought a pair of "NOS" 6V6s the seller promised were perfectly matched. Um, no they weren't. So the only...
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    Sag Machine - Battery Emulator / Excuse Remover

    It might make it easier to read if you reduce the length of the diode in DIYLC. You can make the diode length shorter so it shows the band.
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    Guess the circuit

    Could it be a Lovepedal Kalamazoo with LED clippers?
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    Arche / Fordoble boost brightness reduction

    Sure - couldn't hurt. FWIW I have built a few of these and never bother with those clipping diodes for the reasons you mention.
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    Vacuum Tubes

    I used parts from Valvestorm, Mercury Magnetics, Tubesandmore.com, etc, based on freely available schematics and layouts online. The Valvestorm stuff is excellent - I mainly use their boards and chassis, control plates and some parts. I have learnt a lot about grounding and component choices...
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    Vacuum Tubes

    I was buying tubes for an amp I was building a few years ago and saw the blurb that JJ KT77s were a suitable replacement for EL34s, so I tried them. I like 'em. It's rare that I push my amps to the point of break up, especially any with EL34s or KT77s. That's why I like pedals! I have particular...
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    Jump Drive schematic?

    Yeah the amp is dead clean - to get it to break up is louder than my neighbours would like! But all is solved now that the swchematic has been posted. :)
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    Animal Pedals Major Overdrive (Sheepy Love Old Fashioned)

    FWIW the transistors in the original were 2N5088 for Q1 and 2N5172 for Q2 & 3.
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    Cyborg Drive (Ibanez CD5)

    So clean! I like the colour and I particularly admire the simplicity of the graphics. Minimal, modern, sophisticated. Way back when the Ibanez Soundtanks were still made of diecast metal I bought a "60's Fuzz", which I know now is a Big Muff variant. I have always liked that pedal. I still...
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    C2C BassDude (Fender 5B6 Tweed Bassman Preamp)

    He does some very cool pedals and I think you have done this one justice! I do worry that the knobs end up very close to footswitches, but I guess it wouldn't really be problem for me because I'm unlikely to be gigging with one anytime soon. I'd love to hear it! Of course being modelled after...
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    Modding the Vintage Distortion into Colorsound Tone Jumbo, possible?

    Don't use the actual numbers on Kit Rae's diagrams! He seems to number everything backwards. Rather identify the parts by their place in the circuit. You should be able to trace from the IN jack to what we would normally call Q1 - Kit Rae calls it Q4. I see that Behringer call the transistors...
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    PedalPCB Lemonade Overdrive

    Pretty sure it's based on the Lemon Drop pedal.
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