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That looks sweet!

Dung Beetle is super cool

If you mix before the iridium, then the cab sim (most importantly) as well as amp sim and reverb will be on your external audio. So, better to take the output of the iridium into a mixer. I've built both of these and they work great. Caveat is for the mixer you probably need to split the L/R...

Very cool. Yeah a 500k across the volume would do it. The 763 circuit is pretty similar to the Timmy, but the HPF is set at a higher frequency (where it cuts lows, unless the lows knob is turned up) (R3 and C1) A trick you could take from the Timmy is 2:2 diodes instead of 1:1. This would...

Sometimes parts are bad, and sometimes the breadboard tracks can wear out and not connect to your part leg well. You can test those two possibilities if you have extra parts or extra space on the breadboard. In my experience, it usually comes down to a mistake I made though. You could post your...

That IR link is cool. I did a quick test with a 3.5" driver from an old, keyboard. I drove it with the L channel of the headphone jack of the pedalpcb headphone amp (LM386 like the ruby). The speaker is not good and cannot get very loud without distorting. However, I was still able to...

The pedalpcb headphone amp is really handy, especially with the phase switch to spread the sound and feel more immersive. But I definitely don't like the sound without any cab-sim. Clean sounds thin and distortion sounds quite harsh. (Although the 424 -> DI thing has some popularity at the...

Overthinking for sure. The Ruby build looks cool. I'd be curious to hear the difference between: Ruby -> 3.5" Ruby -> 12" Cab Sim (or EQ) -> Ruby -> 3.5" Not that you have to report back, just thinking. I wonder if the cab sim would help the 3.5" sound more guitar-like, especially with...

Just saw Cybercow's, he covered some of the same things. My understanding is an active 2nd order filter will be steeper and more defined than 2 cascading 1st orders filters, I'd guess better for your application

Rin and RL depend on the impedance of whatever is before and after. Ideally you assume 0 for Rin if a buffer or active pedal (with low outpu impedance) is before it, and 1M for RL, as most pedals and amps have 470k~1M input impedace. But, if you're putting this first in chain (connected...

I have some questions about speaker size kicking around and haven't found many satisfactory answers online. I thought I'd open it up here. Lots of generalizations for the sake of discussion. Small practice amps often have 8" speakers. I've read people say that when they plug into a 12" cab...

Tentacle is the same circuit as the green ringer. Digital octave shift is difficult to pull off really well. My hunch is the Lekato would be the “simple method”, which has some noticeable latency and a warbly tremolo type artifact. Pedalpcb Pythagorus with EEPROM builder has a patch that...

The parallel octave->fuzz paths sounds like a cool idea to try out.

Aleph, what do you mean by 'relatively clean octave up'? Do you mean the Escebo, or a digital octave up? I've played with the FV-1 octave up (absolute value) which should be as clear of the rectify as it gets, and I found it pretty similar to the green ringer circuit. I haven't tried the...

An analog octave just rectifies the sound wave. As in, all the negative parts of the wave are reflected to be positive. So if you visualize a sine wave, it becomes a bouncing shape. This is a crude wave, but it’s double the frequency. The closer the input is to a simple sine wave (neck pickup...

nice thanks for the info. I think that tool would have saved me some debugging in the past.

A lot of guitar dirt circuits accentuate the mids. I think reasons include -Some guitar amps such as Fender black panel era have a midscoop in the Bass-Mid-Treble tone stack, so a TS or Klon can fill that back in -Mids are the frequency range that guitars most prominently fill in a mix, so...

Of course, just have the footswitch connect Attack2 with Attack 1. There will still be some delay from the 1k resistor, but it’ll be very small, probably unnoticable. It’s not good to ground pin6 of the pt2399 without some other countermeasures. If you really wanted No predelay, you could...

Belton designs are nice for light to medium reverb, I have a one built inside my valve jr amp head (1776 Effects rub-a-dub deluxe, now out of business). Might try the Gravitation at some point for the extra tone knobs. Specifically, I've preferred BTDR-3 over BTDR-2. Some people complain they...

Nice build. I've been using a combination of stainless steel pins and braid for clearing out holes, but then I never mastered the solder sucker. https://stompboxparts.com/tools-supplies/stainless-steel-desoldering-needles/ For what it's worth, I recently built this PCB and compared it to my...