damnit, i wanted to build this without annoying you guys, but i just need to see if this sounds about right, so here goes:
i've built the ADA Flanger on vero, because i'm scum with no cash for a PCB, and it seems to work okay for the most part - flanging, voltages within an acceptable margin of Earthtones' readings... i've not calibrated it properly yet (although i have made a working divide-by-1024 prescaler which may or may not make it feasible to do on my sound card), but i have tried to get a feel for everything else besides the clock.
here's my concern: there's a really narrow window of usability with the TR6 trimpot. too low, and the flanging is too weak. too high, and it produces too much echo. due to how they work, i expect that "room reverb"-esque sound in flangers, and i know that's the whole point in a BBD, but i just wanna see if this is behaviour is to be expected? how much is acceptable? there's a risk of it sounding like a really cheap reverb after a point. say you mute a string, pluck it really quickly and mute it again - will there always be a tiiiiny amount of obvious echo? it blends in much more when you're just picking normally, with more sustain etc.
sorry if i've not explained this properly. there's a thread about a slapback echo on the ADA where the OP had R68 and R69 mixed up, but those values (& C29, for which i've tried 47p and 33p) all seem fine for me. all ICs have been replaced once or twice, just in case.
TR2 is near-full, btw, as per the calibration videos, and TR1 is the best balance of flange & distortion i could find
cheers!
Edit: after trying with a Tube Screamer in front of it, the echo renders it unusable. it's either too prominent or the flange is too weak.