Messages

I still haven't installed BG3... or RDR2...

I did do a large run of Tale of Two Wastelands. I think I've exhausted any and all interest I ever had of FO3. Just vanilla FNV from now on, but after a break.

Finally installed Fallout London and have been very pleased with it. Though, having to install GOG Galaxy to get it installed properly was a faff, if the only one.

Sadly byoc has closed up shop. Had a final sale end of 2024. Don't recall the reasons.

I have a mbp Promenade in my build queue. I wonder of aleph null's Otolith could be optimized for bass (maybe just cap values?) That's a very versatile beast and can do super sludgy to punchy.

What about using a mosfet for Q3?

So something like this for the output stage?
You cannot view this attachment.

Read in the build doc for the cosmo that Q3 can be subbed, theoretically with some other component changes. Wondering if anyone has tried it and come up with a tone they like there. Haven't breadboarded this one yet as I spent my time with another circuit:

As far as the dizzy tone, the PPCB forum came together with an NPN version of the Gnat (Buzzaround), which I like quite a bit. I was experimenting with it this weekend going through each, seeing what I could and couldn't replace with silicon.

Q1 and Q2 are just a darlington, but I still wanted to see if I could sub with equivalent low-beta with and without the resistor across C-B. Zero luck there.

Tried medium gain in Q1 (286) with no resistor. It sounded pretty decent with a low-ish gain (84) with a 2M2 across C-B. This was all still with an AC127 in Q3. Okay, but the sustain dropped off, might need to adjust a few other values, but not sure which.

However trying to replace Q3 with silicon was a dead end. Looked at some other schematics out there, tried adapting that final stage, even adding another gain stage before the final volume. Just sounds bad. Not even "different," just bad.

Seems like a similar situation with the Cosmo needing that germ in Q3... If anyone's got some insight on that one, I'd appreciate it.

IF what I'm looking for is better served up in a different circuit I'm open to direction. Just had this idea in my head to have two flavors of the same basic circuit.

You probably looked, but I didn't see anything outside of the 12-16mm even on aliexpress...

I mean, Hammond has been amenable to custom work. I'm sure a place like Daier or similar might do it. My non-engineer brain thinks taking a bog standard red (not water clear) 5-8mm LED and forming it in a heated metal mold—that faceted shape, only shallower than what we see on amps and such.

Maybe a trick of the light, but are these two different parts? 

You cannot view this attachment.
You cannot view this attachment.

I'm not terribly familiar, but it does seem odd to go to all that trouble for a recreation and not make at least a partial effort for the light jewel. I mean, even one of these would be "effort" https://www.taydaelectronics.com/5mm-led-red-plastiic.html and Amplified parts has an even better looking one.

Might just be there hasn't been demand. Most amp places have the standard bulbous bouffant jewels. Something about the cut jewel pattern in red though. Maybe cause it looks like a ruby? Maybe cause it looks like classic pizza hut glasses.

Definitely has the look of something from the '60s. Maybe they were using whatever they had at the time and it just got replaced o
In ither industries at large with a different part over time.

Could it be RF interference? some builds have had to be inside a box for the noise to go away.

I'm not sure if it would work, but you could try tenting it with some foil, temporarily putting the jacks through it, being careful not to let it contact anything but ground. 

When I recently built a Cornish I had a generic hole pattern 3d printed box for mounting/wiring, and it was noisy as h*ck. Lined the box with some spray-glued aluminum foil and it went away.

Print is not dead. The internet dies with another bubble.

Is it this one? Polytrog PDF

The non-linked projects that aren't in the archive can be found here  

What did you select for volume control?
Tbh those artefacts are only there when not playing, and who expects a big muff to be quiet lol?

Fair enough. It just feels louder than others I've built, but might be due to the volume pot.

I'll poke around and swap it if it's the base 10k. Nope just rechecked my board post, and I used a linear because tradition.

Logarithmic? On an output volume? Who would've thought‽ I was building it to just see if it worked first 😂 but I might could have rechecked.

Verified my board tonight. Am experiencing the 'max sustain artefacts' LaceSensor mentioned over on PPCB, but there's enough to go around without diming it.

This thing is ...gutsy. Just pushes and pushes. I want to play a bit with components and values and see what mayhem I can get up to.

Hell yes ! Happy 2026 in advance everyone!

Lucky duck, you get to experience it before the rest of us  

Amen