My build progress

Ha, ha. Indeed! 6502 not 5602

come back in 900ish posts :wink:

We have been discussing old MOS,Moto,zilog Processors a lot recently on our weekly “Covid Virtual Pub” nights… Bit of a coincidence :slight_smile:

2 Likes



I got pcb’s for that. Midi jack has wrong footprint and I forgot to sync the pins on the connector on the jack board to the main board, so jacks on basically randomized. But nothing blew up and I can finish the code with this and If I want to add something… well, I have to order new pcb’s anyway.

9 Likes

scored this 7 foot aluminum telecom rack at re-pc a couple weeks ago, I cut it in half and finally got around to installing it :smiley:

4 Likes

looks interesting, 1st PCB?

I think we have a very long list of ahhhhhh NEXT, PCB orders…

I finished my take on K25-utils today and installed them…


15 Likes

Fist time I see a case in a flower bed, nice !

2 Likes

With these type nylon standoffs (my fave) I usually fit to .1mm tolerances with a little sandpaper. Gets my stuff aligned just right. Just have to notate how much to remove for the next build.

Very cool… an O-scope! I can put my old Tektroniks spare back on the bench soon!

My build progress is here :slight_smile:

Every (shelve in a) rack deserves at least one scope.

I agree. Would really like to make one. Sigh, the list only gets longer, never shorter

With a beefier regulator, and with some really shameful soldering, or lack thereof, corrected, progress has been made.

8 Likes

Not finished any new things since I last posted, but it has not prevented me from starting new things.



That one will be CMOS bells. Having a bit of trouble with the circuit but I’m confident I’ll get it to work. I’ve started to add wire wrapping to my arsenal of techniques — using also breadboard PCBs and pin headers, that makes it easy to debug things with dupont wires first, then commit using wire wrap.



The center module has a little speaker and a two channel mixer, but I still need an amplifier chip to finish it. Hoping to get a clipping indicator circuit working too.

And I’ve even branched into building acoustic instruments:

Also, I’ve just sent this to JLC — let’s hope the reviewer will humor this:


It fits in 100×96mm, below the maximum to get a special deal. When you use it as-is, you just need to populate one set of power components (shrouded header, diodes, capacitors) — but you could also score the board in the center and cut it in half. A notable feature here is that the two power rails are reversed, and there are ground pads in the center: that means that you can often use solder bridges where you would need a wire otherwise. At least in theory… I’ll see how well it works out in reality.

3 Likes

Just finished the VDCO from electroDruid, following the manual from the website and the very good advices from @EddyBergman website. (I am taking a long break from my DFAM clone / LMND)
It is a bit noisy, nothing that would stop me from using. It wasnt as bad while i was tuning it but then the 2 boards were further apart. But now that they are stacked together it is audible… but i have also added a mixer (for the osc and sub osc) with distortion so actually, more noise is best🤘.



Planning on finally doing the triple splashback, along with a dual lfo, VCA and Env Generator to fill the updated case.

5 Likes

Have you done all the mods to the VCDO to improve the noise?

1 Like

As I have no idea to which mods you are referring I would assume that I have not. Do you have link for this ?
I did just google it but I have not been successfull…

1 Like

There are some capacitors mentioned on muffwiggler to reduce noise, I built a 6 voice poly with these chips, but to make it more usable I also installed this software and mods.

2 Likes

Finnaly sorted power in my case.
Got a C14 socket with fuse:


Then some up-to-code connectors to an internal wallsocket for the warts for the FC Speak Truth to Power busses. And future proofed for the LED powersupply as well. (Which is why I need 240VAC in the case to begin with)

Don’t worry, nothing of the 240v is exposed.

7 Likes

nice case , you will have that filled up in no time though :wink: . good to see all of the AC safely covered ! .

1 Like