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In the guitarworld review here they have a low res pic of the PCB. There's the big 1uF cube and on its lower left a resistor that looks like it's reading 1801, which would be 1k8, not 180k. Maybe they had a bad batch where the fab put the wrong resistor in and PedalPCB got one from that batch...

I think I was wrong about Q1. It looks like taking a lower gain transistor alleviates the symptoms, but doesn't fix the problem. After I wrote the above yesterday night, I connected the pedal and played into it for a while. At 9V everything was fine, no noise even at full gain. After a while I...

I built the Sabbath a few weeks back and remember that I used a vero transistor switcher to test a few trannies for Q1, the one in the treble booster. I tried a BC184B, a (2N or PN, can't remember) 2222A and a BC549C. With the gain half way up or so two of them were very noise while 2222A was...

This must be the Chad of the small signal diodes!

Hi, with "under" I mean "going south" of the charge pump, not "underneath". Just to get from upper left to upper right. BTW, I've posted some info at Musikding if you want to take a look: Link

I wanted to do the Pharmacist on Vero. There was a layout already, but the format wasn't to my liking. So I wanted to do my own. First time Vero layouting for me. First I decided on the size I wanted. And then I said I wanted input on the lower left, because that's where you connect it to the...

Hi all, Last weekend I boxed up my Pharmacist clone and I was looking for voltages on this forum, but didn't find any. So I'll attach mine here. Taken with all knobs and Bass and Treble trim pots at 12 o'clock, Boost gain trimpot fully CW. If anybody can confirm that would be cool! Kind...

Like @Zanshin I bought some NOS 1S2473 a while ago. They may well reach Vf of over 1V at some current, but in my tester they measure the same as 1N4148. I have a Boss SMD DS-1 and a clone that is built to Pre-94 spec (as described in Comet build doc). I used JRC4580D like my Boss original...

Thanks spi! I agree vero takes more effort and time than PCB. But I find that actually is kind of a nice thing if you enjoy the building itself. It's like Lord of the Rings vs Lord of the Rings extended edition. I you have the time, why not? :D

Hi all, I was bored so I started building a pedal that I already sort of have :). Well, I have the Thermionic Deluxe. And now I built the normal Thermionic on Vero, using a layout from Alex over at tagboardeffects. Why? Well, bored. And I thought it'd be interesting to see if with Vero I get...

Reading this I remembered that I had built an aion Plexus, too - some time ago. I couldn't remember if it was noisy so I plugged it in and cranked it. Don't think it's noisy. Some feedback if you want it, but noisy it's not. I didn't play it a lot, but it's a fun pedal, just sat down 20 minutes...

A schematic for active DI was put on FSB a few days ago: link. Even a vero layout was posted for it. Seems easy enough to build. Only took a quick glance, though.

I'm sure your right on all counts. The DMM I use is my UNI-T UT61E+. During the measurements (mV and V) on the vero the numbers were always jumping around a bit. I didn't care too much, for me they're all ballpark numbers. If you say that for Si transistors the actual leakage will be (way)...

Forgot to mention, I don't have the sensation that there's too much top end with the 2N2222A. I have the extra 10k between the 220n cap and the Presence knob if that makes a difference. Presence control works nicely. I like it the way it currently sounds, so I'll leave it like it is.

Sorry, my mistake. I must have slipped up when I measured the 2N2222A. I redid it, also two 2N2222 metal cans, they all seem fine, low leakage. My 20€ T7 tester also shows no leakage for these (for the Germaniums it does show leakage). Transistor Leakage mV uA Gain V Beta 2N2222 20 8.09...

I have now five AC127 and tested them in RG's tester that I put on vero (DC reversed to account for NPN). Results not very inspiring I think :) I was able to bring up the collector voltage, though. I needed to go down a little lower than 4k7 for R10/R15. But seeing the not-so-impressive...

Thanks, I ordered 10. I've seen them mentioned on the forums quite a lot, but I don't remember ever doing anything that would require them myself. I'm in EU and order locally, so mostly retroamplis and Musikding. I get ten BC549C at 0.10 apiece, too. € that is. :)

Thanks Chuck! I don't have these, BJT NPNs I only have 2n5088 left. I'll order some transistors and then I'll recheck. Kind regards, Seb

Hello Chuck, everybody, I have the HFD on the breadboard and it sounds good to me. Kind of like this YT video. I used 2n5088 for Q1 and Q2 on the breadboard. I will order the BC109C transistors for the actual build. I have two AC127 transistors on hand. I measured these voltages: Q1 2n5088...

Hi Robert, I see what you mean. But I also see the 1n cap in the photo juansolo posted here. Next to volume pot, it's standing up. It says 102K, so 1n. There's no other 1n in the project. Next to it is the gold cap with 2u2 from after the output buffer, where Aion & PPCB show 1u. Kind regards, Seb