Recent content by phi1

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    Chop Shop (Barbershop)

    I think 2n5457 will need significant adjustment of the drain resistors to bias correctly, and will be lower gain. The sag knob may not work over the whole range. You could get it to work, and probably sound nice if biased correctly, but it wouldn’t sound like a barbershop then. I’d heartily...
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    Chop Shop (Barbershop)

    Question since you find the sag control to be subtle. (I find it to increase the distortion quite a bit). Where did you source your jfets? Did you check the drain voltages?
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    Blue box or build?

    boss oc-2! Pedalpcb has a board for it now.
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    Fuzz face/tone bender 2in1

    This split n blend circuit sends the input to two buffers. One buffer goes to the dry side of the mix knob, and one goes to the send jack (for the wet signal). So it would not be good for this project. Directly sending the input to both circuits means the input impedance of both will be in...
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    Treble trouble? Bass blues? Mids massacre? EQ choices

    Right on. I should have mentioned mine is the half stack (1x12 cab), I’ve not tried the combo. It’s had some issues (failed PT, vol knob stopped working), which along with the mods has allowed me to get very familiar with the circuit and how to work safely on amps. Fun stuff.
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    Treble trouble? Bass blues? Mids massacre? EQ choices

    My typical setup is a tele into an epiphone valve jr. the amp has some circuit mods including a tone knob (like tweed Princeton tone knob) to access some more treble than stock. I like the amp, it feels like a solid, full clean tone and pedal platform, with nice strong mids. This is probably...
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    Favorite builds that run on 18 volts?

    My only thought is that, on delay and verb especially, the pt2399 or Belton brick or fv-1 are regulated down to 5v or 3.3v (fv-1). So while running at 18v gives the op amps more headroom, it doesn’t really help the signal passing through digital chips. Also, considering these are usually used as...
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    Favorite builds that run on 18 volts?

    Another idea, potentially less fun. I made a 18v->9v step down box in 1590A. I put two of this circuit in the box (each circuit with its pwn in/out power jacks) so I could convert both the 18v and 12v outputs on my power supply to 9v and just have 10 9v plugs. I know lots of pedals work just...
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    Tim vs Timmy

    Could you try it with and without the 4.7nF? (I’m not sure if you’ve built the layout yet or just playing with the original). According to the freq calc, that cap is rolling off treble around 10kHz. That’d be a pretty scientific way to test Tim vs Timmy I think, that’s the only audible...
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    Diptrace Best Practices?

    In my opinion, best practice is to draw the schematic first, and then import to a pcb design. That way all the ratlines are connected automatically. It’s way easier for me to check that the schematic is correct than checking all the rat lines. Of course drawing the schem takes time, but that’s...
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    Cheese Monger compared to Aion Monolith

    Would be cool to see this design implemented with the cheese mode on its own toggle, or knob to vary the gating, so you can get the cheese gating regardless of tone setting. Then, I’d put the tone section cap on another toggle. According to tsc-intheweb calculator, with tone knob at 50%, the...
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    Cheese Monger compared to Aion Monolith

    The main difference in parts list comes from the rotary switching method. Aion uses a 3p4t rotary, and pedalpcb uses 2p4t rotary with the CD4066 chip performing the actual switching nodes in the audio circuit. Otherwise, I think it’s the same circuit (I haven’t checked in detail, just a quick...
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    Stripboard to Schematic to Breadboard. Good/Bad?

    There’s nothing magic about it, just make all the correct traces connect. The link benny posted is probably the best info out there. Ive used DIYLC mentioned in this thread, usually just plop the ic in the middle of it has that, put input wire on the left side, and start walking through the...
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    Stripboard to Schematic to Breadboard. Good/Bad?

    All good stuff on this thread. I think both directions are good to practice and use. A full project to involve all the skills is: vero -> schematic -> breadboard -> tweak/re-design -> new schematic -> vero -> build
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    Stripboard to Schematic to Breadboard. Good/Bad?

    many of the schematics for tagboard effects come from freestompboxes site, which doesn’t have the images come up in google searches. I’ve traced a few veros to schematic for the same reason.
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