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the only thing stands out to me is how or why the emitter (3) is idling at a higher voltage than the base (2). good question though, wtf is that BC550 doing? seems to be part of some sort of negative feedback mechanism in conjunction with the opamp...

🪦 RIP Shottky a faithful companion, loved by all, dearly missed.

this is sick 🤟🏻

if you have x2 10K resistors you can stack them in parallel for an equivalent 5K resistance, which will be a close enough substitution for 4.7K

hahaha band costume. cheers 🤙🏻 yeah for sure the matte sand finishes are great. pretty stoked about the new range of colours. hope we can get a good yellow one soon. yeah thanks, i’m glad it turned out being a worthwhile experiment, and yep makes a great boost for high gain/metal stuff. they’re...

around the same time that I had the idea of doing the discrete opamp SD-1 with the Wilhelm Scream PCB, i also pondered similarly about the ST-9 and thought what if, instead of having an ST-9 based around the TS-808/TS-9, why not build one based around Boss SD-1 values instead? initial...

https://amzn.asia/d/5CU5jXo this is what i’ve been using for all my demos

alright, here it is. finished a HM-2 build on the breadboard this arvo. it's gnarly. gotta do a demo soon. so tonight i plotted out a russian muff on the free space left (minus tone circuit & q4), and got it running into the HM-2 EQ. but it’s 1:45am so i can’t properly test or hear it yet, but...

so sorry to hear about the passing of your wife. i would absolutely love to help with this, and finish these off. but unfortunately i am too far away in madmaxland for this to be feasible 🫤 and then there's the risk of it going missing in the post

the key to all of this is to DRY FIT everything (and i mean everything) to ensure fitments etc. before applying solder to anything. (here's a pic where i've checked the fitment of the two boards together with the header pins/sockets already mated together, which is how they should be when you...

ay great work! 🤟 looks excellent. many thanks for taking one for the team and warning us about the jack fitment. (yet to build mine 😅)

despite claims that the amptweaker tight metal is meant to emulate a 5150, the aionfx version, "ember metal distortion', i built was quite a disappointment. there's definitely better distortions out there. e.g. the brown betty i built was way more fun. [although i reckon the 6 knob version...

cheers! none of this is really all that serious, (my preferred rig/method is a drive boosted high gain tube amp channel) it's all just a bit of fun and experimentation with the circuit that left a huge impression on me from my youth, by making otherwise awful cheap solid state amps fun and...

i was considering posting this in the modifications sub-section but im not sure that a couple cap changes is worth a post there. or anywhere really, but i guess this thread will do since the MT-2 is the largest circuit i’ve breadboarded so far. after fixing a few errors, the build sounded...

+1 also chorus

Brown Ball

when i first discovered this board in the pedalpcb shop, it came to me at just the right time.. before i had even tried an ST-9 circuit (my favourite), at the time (‘22) i was all about the 808 circuit (OD808/TS808). I had this idea where I really wanted to do a discrete opamp version, and was...

in what way? does this cause noise or something? always wondered what the point of series resistors in power supply inputs were for. e.g. opamp muff: