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What us your voltage at q3 drain and have you adjusted the bias pot at all? It sound like you are losing audio there and that is where the trim comes in.

My last order of 230+70 from Tayda wouldve easily been 500 + probably a good chunk of the 70$ I paid in shipping I’d guess from the US competition. 5.99 for a powder coat when the limited drops from LMS are 15, and the other ones dont have near the selection or quality. Ive jiust been...

Yea that slow boat option was awesome when it was hey im running low on 10k, 4k7 and 100n caps.

I don’t remember if this was before or after. 2/19/26 was the date of order. 230 and some change shipping was 71 and some change. 10 125b’s. A bunch of knobs and jacks. Some pots and some random caps/resistors.

This is the tone stack calculator i was using to find where -6 at 90hz was https://tonestack.yuriturov.com/

K cool the roll off can start a bit higher I think I can play with it. With 10k and 100n im showing -6.4db at 90 hz and the roll off looks gradual enough. Guess I’ll just see how it sounds.

Just wanting to do a simple high pass filter that is passive and would be in its own box. Goal is -6db at 90hz. Which i can get close enough here. Do I need to use Rin and RL ?

Here is the schematic. https://docs.pedalpcb.com/project/PedalPCB-Hydra-Schematic.jpg I would first do the clean previously mentioned. Then i would audio probe to see if you have signal entering the fv-1 and go from there. Double check all your values etc. those mlcc’s are easy to get...

Ive spent way too much time trouble shooting a build where the in was in the our…

Yea i think i mustve done that with the dc jack oops

The one i built about a year ago came with the 13a and worked fine. Verified a pic

Hadnt thought of trying that good to know as i have plenty in that range.

I use a trim pot with a bias pot. I will throw one on a breadboard, I’m just curious what people have experienced with them.

Obviously I can socket/breadboard which I’m going to do anyways. Just curious on what others have experienced with q2 hfe being 150-170. How much have you raised q1? Normally i do 70-85 q1, 120-135 q2. Have you ran into bias issues? Im assuming its a bit more compressed? Just...

Well yea it does require a computer.

The sheepylove diptrace library has faceplate templates and you really don’t even need to learn diptrace to use them. Costs about 5$ to order a batch of 5 faceplates from Jlcpcb. Id look into this

Actually you have to have the boost cut way boosted too for it to do it. Maybe its just the nature of the beast

Just the combo, i thought about pulling the charge pump. And just attaching pin 5 to ground and see if it goes away

So this is oscillating at higher gain settings. I incorporated an order switch so there is plenty of wiring in there. The oscillation stops when you play, and comes back when you stop. It almost seems like the whine from a fake charge pump. This is like #22 used from a batch from digikey...

Well a temporary break. 80$ in shipping/tariffs for my 220$ tayda order earlier this week was annoying.