Muff's Modules & More

negativspace · Posted: Sat May 19, 2012 3:20 pm Post subject:

Yeah, in fact that's how all my prototypes were wired. Then, right before I offered them publicly, I realized I could put a Euro header on the daughterboard and save everyone the trouble of getting a custom power cable. d'oh!

I believe there are spare +v/-v/gnd pads already on the CGS202, too. Just use those.

msprigings · Posted: Sun May 20, 2012 12:20 pm Post subject:

Thanks negativespace! Got this baby working. Sounds amazing! ended up using all polypropylene caps rather than polystyrene. Had to get creative fitting them in there. Would love to hear the difference side by side.

cleaninglady · Posted: Sun Jun 03, 2012 2:04 am Post subject:

I need a little wiring help for the Sub Board.

About a week ago , I installed some 5 pin headers and wrote down a guide for the wiring (with the PCD edge with the headers facing me sticking up).

(left) NHKIF (right)DUBAC

So , that's how those are wired to the CGS202 board.

The other connections J and E went to J and E on the CGS202.

Where does the Out/M pad on the Sub Board get wired to ?

I've wired it to the M on the CGS 202 but after looking at Kens page , it seems the M pad should be connected to the wiper from the input att. pot.

iopop · Posted: Sun Jun 03, 2012 4:09 am Post subject:

That is correct Out/M goes to M, the sub board is the "same" as the wiper from the input att. pot. If you check the schematics everything to the left of the M on the cgs202 is the sub board. But expanded two two inputs going to a mixing op-amp.

cleaninglady · Posted: Sun Jun 03, 2012 7:34 am Post subject:

Thanks iopop!

Unfortunately , i'm still feeling quite confused on this one. seriously, i just don't get it

Everything left of the M on the schematic i see :

A 50K log pot with Tip to one side (CW) ,
Wiper to M and the other end of the pot (CCW) to Ground.

Where does the input att. pot wiper go ? To M as well ?

It might be obvious but i'm not getting it.

ringstone · Posted: Sun Jun 03, 2012 7:36 am Post subject:

negativspace · Posted: Sun Jun 03, 2012 7:53 am Post subject:

The two wipers of the input pots go to the inputs of the mixer @ the subboard. The output then goes to 'M' on the CGS202.

iopop · Posted: Sun Jun 03, 2012 7:57 am Post subject:

Sorry for being unclear.

In essence it should be as simple as wire up the input jack and attenuator pot as on the schematics, then connect the wiper to one of the IN pads on the sub board. Repeat the same operation for the other input channel. Lastly connect Out/M to M on the cgs202 board.

Forget what I said earlier. It was before the morning coffee. smile

negativspace · Posted: Sun Jun 03, 2012 8:02 am Post subject:

You were perfectly correct the first time too. thumbs up

ringstone · Posted: Sun Jun 03, 2012 8:08 am Post subject:

Hopefully this makes the board-to-board wiring clearer...

Cheers
Blair

cleaninglady · Posted: Sun Jun 03, 2012 9:06 am Post subject:

ringstone · Posted: Sun Jun 03, 2012 9:20 am Post subject:

cleaninglady · Posted: Sun Jun 03, 2012 6:00 pm Post subject:

Cheers Blair

I can see that now it's pointed out to me. oops

Thanks again all. Hope this helps other with the same questions.

cleaninglady · Posted: Thu Jun 07, 2012 9:32 pm Post subject:

Here's some video sounds...

https://vimeo.com/43644524

Modulating Cwejman VCO-2RM with ultra slow Sine from ULFO then to Input of the Serge Resonant EQ.
Then taking the Lower Comb Out of Serge Resonant EQ into the second Input.
I dial in the Lower Comb Out i little way in.
You can hear the rich harmonics from the Resonant EQ as the ULFO sweeps the Oscillator output.

vav · Posted: Sat Jun 23, 2012 9:47 pm Post subject:

So i bought a used Res EQ and the panel seems to be a bit tall, it wont fit in my Doepfer P9...anyone else experience this?

rico loverde · Posted: Sat Jun 23, 2012 9:50 pm Post subject:

asterisk · Posted: Sat Jun 23, 2012 11:27 pm Post subject:

i had a problem fitting mine in too, but it wasnt the panel, it was actually because i used pots that were a little bit too large for the inputs. once i switched them to something smaller, it fit fine, the panel is the right size.
so you might want to check the input pots and see what size/kind they are.
(mine was all done on a doepfer P6)

i still havent gotten mine working properly though. someday ill try to troubleshoot it, but ive been putting it off and building other modules instead. Dead Banana

thetwlo · Posted: Sat Jun 23, 2012 11:38 pm Post subject:

mine seemed slightly off, maybe loosen other things and tighten the res last?

cleaninglady · Posted: Sun Jun 24, 2012 6:57 am Post subject:

hellpony · Posted: Mon Sep 03, 2012 7:08 pm Post subject:

Will there be another run these??????
help