Recent content by Bio77

https://www.madbeanpedals.com/projects/_folders/FilterMod/pdf/PorkBarrel24.pdf Since the clock is firing up and then leaving, maybe you have a loose connection. Might be worth reflowing some suspect solderpoints. The voltages can help you identify the area on the circuit you want to address...

Do you have a DMM with a frequency feature? If so, you should measure pin 2 or 6 of the BBD to make sure your clock is working. No clock = no delay. Should measure ~40kHz. Should also vary with the rate and depth knob. You can also measure the voltages on the transitors. If you check...

Cool build! The diodes pads on the old Aion stuff are a bit tricky, you need to jumper the pads you aren't using. Also, check the orientation. The middle position is a diode lift, so, if they all sound the same, I'd guess the other diodes sets aren't clipping.

I bought the Proster vc97 for the Flintlock. I checked Amazon, they don't have that model anymore but they have others. Just verify the frequency specs, here are the specs from the VC97: 100Hz/1kHz/10kHz/100kHz/1MHz/30MHz, +/- (0.5%+4).

Recently, a coworker presented a list of compounds for a research project and a list of ways they could each be chemically modified. I commented that it was from ChatGPT, so, likely fake. He said, yes it was from ChatGPT, but there were references for everything. I said, I stand corrected...

Damn, Chris! That's beautiful.

I live in LA, not much brick and motar left. There used to be a big electronics shop in Culver City, but not anymore. Even the Fry's are gone, now. Still some cool music stores, though. I'd recomend Truetone Music in Santa Monica.

I have the Wet Bar (Ibanez MF-5) on my board now and really love it. I was contemplating designing a three band EQ version. I’m not sure how best to proceed, so, I thought I’d put it out there to some of you with more understanding than I have. My idea was to add a third gyrator for highs and...

Usually when an effect gives no sound engaged, it's the switch or a wiring problem. If that checks out: Use an audio probe and trace the signal through the clean path. You should get something even if the delay isn't working.

Just reiterating some of the earlier posts. Setting the BBD bias trimmer precisely will give you the maximum headroom at the 9V. If that doesnt get you enough then 18V should solve the problem. Would recommend using an 18V power supply and not try to add a charge pump. Those are tricky with...

After the pedal stopped working, were you able to use it (i.e., working again) in isolation? Asking because sometimes stacked PCBs come apart with use. I put foam to prevent this on pedals I sell or will be giging with. If not, maybe your power supply can't handle the current draw of all the...

I've mistakenly mixed up the input and output jacks when testing a pedal out of the box before. Could that have happened? This circuit has a clean trace all the way to the blend knob, so, you should here something unless there's a problem with that trace. You should make an audio probe and...

I like the Timmy for low gain

I have used about the same process you are discribing. I used a sander with 150 then 400, then hand sand with 1000 and 2000. I've also used buffing wheels in my drill press with polish compound to get a mirror finish. I think for etching just a quick hand sand with 400->1000>2000 would be...

GOTA build report is a great way to start the day :cool: Just ordered this one.