I have a metal cheap-ass flathead I use for trimmers. When I had to trim the trimpots on the motherboard for the Buchla 208, meaning sticking it between the daughterboards while powered up, I just put some heatshrink over it. Job done. For exactly that task, I used bamboo kebab skewers, shaped with...

I was kidding.

That’s interesting. What’s that processor card?

dslocum wrote: ↑

Sun Aug 09, 2020 7:21 pm

... not to mention that I am free to use his name / brand with impunity.

Sounds like coercion. Like protection rackets.

Anyway, I’m not really taking a position on this, just amused.

If I’d invented something 30 to 50 years ago, I’m sure I’d warmly welcome people voluntarily paying me to use the idea, too

Are any Serge designs patented?

Does anybody know - is Soma planning to continue offering kits?

That’s a lot of words, but It seems obvious to me, the first step should be to ask Soma.

Board arrived today, looks great. I should have ordered barrel jack,too!

emmaker wrote: ↑

Tue Aug 04, 2020 3:22 pm

Another thing is for myself at least I'm not all that cost couscous.

Couscous.

Yes.

I’m pretty certain such a thing doesn’t exist.

It would be easier if the OP would use part designators as shown on the schematic. I’m pretty sure now he is referring to pin 5 on IC3 on the expander board. OP: This would be a good time to learn how to read a schematic, and this one is quite simple. Pin 5 on ic3 should have continuity to one of th...

Ordered one this morning, assembled. I’ll probably order more.

Suggestion to OP- Upper and Lower TL074 in your voltage readings would be much better replaced with the part designators from the schematic. Sure, we can figure it out, but...

Anyway, are you certain the PIC has been flashed?

Why are you making a distinction between vactrols and LED/LDR? On the schematic they are identical.

Limited supply of assembled ones - after that, board only?

Wouldn’t the Bus Xtender bring the total to 7? (5-1)+(4-1)=7
And are the edge connectors blue?

I've only listened to the first minute of Iron White, and I already love it.

You might want to narrow that down a bit. There are several different Buchla sequencers.

Rad thanks friends! Predictably I had tried tying Reset to ground and amplifying the clock to 15V but I had not tried both simultaneously. Thanks for the tip about the phasing of the transistor amplification stage too, that would have caused confusion eventually surely. Just for my own education, c...

Ahh, that’s something I forgot to check.

One example of a detail that I'm confused by:
- The layout seems to show a 470k resistor from pin 2 to pin 7 on the opamp. That's not what the schematic shows. Am I just misreading the layout?

FetidEye wrote: ↑

Sat Jul 18, 2020 5:08 am

I build this module from schematic, and it works.

Are you saying that the layout is correct?
Or are you saying that you built your own layout, using the schematic?

Maybe I’m just confused, but is that layout a view from the component side, or the solder side? Where is Pin 1?

The postman just delivered these, they look fabulous.
Now I’ve got to narrow down my ideas for what goes in the breadboard space.
Big fun, thanks @papz!