Muff's Modules & More

Rod Serling Fan Club · Posted: Mon Mar 26, 2012 4:56 pm Post subject:

I’m thinking about the next batch of panels and thought of a few questions for everyone interested:

291 - Would you want 3 outputs for BP, HI, LO or just leave it as it originally was with just 2 outputs (the original only put out bandpass on both jacks). Obviously adding a 3rd output would require changing the look of the panel a little, the output are would have to be larger, the angle of the sloping line would change/move.

The “mutant259” –Would people rather see this panel as a complex oscillator, featuring 2 258J boards and this PCB behind the same panel all prewired under the hood; or would you prefer a module/panel for one or two of the mutant PCBs that could be used in conjunction with your 258 module or whatever else you throw at it? I am on the fence about this one myself. I plan on building 2x258 modules and I’m kind of thinking buying 2 more 258J PCBs to make the complex osc is a bit redundant. If the mutant PCB were used as a standalone module, all of the inputs and outputs would be brought to the front panel, allowing for much more access to use whatever oscillators and modulators you want. I’m open to input, if we do go for a full on “complex oscillator” with this PCB and 2x258J PCBs some of us may need to order more 258J PCBs while they are still available.

Lanterman Music Easel EG – I am thinking about making a double EG in a single panel-width. So far my idea is that the panel will look similar to the 280 panel except it will be 2 EGs not 4. These EG’s feature “Attack”, “Duration” & “Decay” with CV inputs for each. It would also have a transient/sustained switch.

Lanterman Music Easel Timbre & Crossfade + preamp & EG detector – Maybe this is a strange combo but I think I could make a nice panel featuring both of these PCBs. On paper, the design I’m leaning towards looks a bit like the 100 series oscillators (144 & 158). Just imagine dropping the bottom “frequency Control” section and replacing that section with jacks for the preamp/envelope detector . One side of the top section would be the timbre and the other side the crossfader.

zoot horn rollo · Posted: Mon Mar 26, 2012 8:33 pm Post subject:

I'd be keen for 3 different outs (HP, BP & LP) for the 291 panel.

I was assuming that the 259ish panel would be for 2x 258J boards and the additional board being designed by beautyofdecay. I think I would prefer it this way, although not too fussed.

However, if you're going to make the 259ish panel without oscillators I would grab an extra 258 panel for the two pcbs I was saving for the 259ish panel.

In relation to the lanterman modules: are there pcbs available for these?

I note that a "timbre" section is included in the 259ish pcb and j3rk is currently designing a crossfade pcb. Don't know if this would make a difference to your plans.

Anyway, thank you for taking the time to organise this! Its beyond my level, so i'm appreciative any way it happens!

Rod Serling Fan Club · Posted: Tue Mar 27, 2012 9:58 am Post subject:

beautyofdecay_ · Posted: Tue Mar 27, 2012 11:52 am Post subject:

I already made a design for my version of the "mutant complex waveform generator".
This is the prototype panel I made:

I modified the mutation/timbre section of the panel a bit to be able to fit in yet one more pot for offset control wink

beautyofdecay_ · Posted: Wed Mar 28, 2012 4:42 am Post subject:

This is the last revision of my design, including the extra offset control in the mutation section and a timbre section pot I forgot in the previous version.

zoot horn rollo · Posted: Wed Mar 28, 2012 5:04 am Post subject:

PF · Posted: Wed Mar 28, 2012 4:33 pm Post subject:

Rod Serling Fan Club · Posted: Wed Mar 28, 2012 5:44 pm Post subject:

Really nice beautyofdecay. If this is what everyone wants and decay is willing we could just tweak his design so fonts/lines match.

beautyofdecay_ · Posted: Wed Mar 28, 2012 6:48 pm Post subject:

I've uploaded the fpd file to my website.

http://www.ecalpemos.nl/sdiy/buchlaesque-modular/mutant-complex-wavefo rm-generator/

It's at the bottom of the page, next to the front panel image.
If it is of use to you, please use it or modify it to your own liking.

Rod Serling Fan Club · Posted: Tue Apr 03, 2012 6:16 pm Post subject:

Here's what I've got so far for the dual music easel EG (lanterman PCBs). I think this would be a great additional, unique double EG for our systems, 3 voltage controlled stages. On paper, the functionality is similar to the 180 with the addition of VC over each stage. So I decided to make the panel similar to the 180 (posting the 180 also for reference):

Rod Serling Fan Club · Posted: Sat Apr 07, 2012 2:53 pm Post subject:

I'd like some more opinions on the 291 panels. Do you want 2 outputs like the original or 3 to take advantage of the bp, hp & lp outs? (the original was just BP outs). Here's a rough sketch with 2 outs on the tops section (like the original) and 3 on the bottom section just so you have a perspective on how one might look vs the other (whichever we decided on, both sections will match - just to avoid any confusion).

zoot horn rollo · Posted: Sun Apr 08, 2012 10:53 pm Post subject:

I must say, after initially wanting three different outputs for the 291, I actually prefer the traditional look of the 2 outputs on the 291 panel so my vote goes for the two output option.

Dual envelope generator panel looks great!

Also, at the start of the thread you mentioned the possibility of a 245/246 sequencer panel using the lanterman pulser pcb and CGS program/seq PCBs. I'd be keen for the 5 stage version of this!

Edit: It might be nice to have holes for leds on the envelope generator panel. Looking at the silkscreen for the pcb there appears to be a pad for led out. I know you can always drill these later, but for those of us without a drill press it never looks as good.

Rod Serling Fan Club · Posted: Tue Apr 10, 2012 11:44 am Post subject:

Is there much interest in a dual tabularasa (wavetable oscillator) buchla panel?

The reason I ask now is that orders for the PCB/chip are being taken now so it would be a good time to decide. I also have a concern:

The tabularasa is too deep to mount for the standard "BUD" boats and still have front-panel access to the wavetable cards. I could make a panel without the card slot. You would have to take the module out to change cards. I don’t think it’s a big deal since there are no commercial wavetable oscillators with front panel access to the ROMs anyway... but if it is a dealbreaker for a bunch of people, it is something to consider.

If there is not interest, I think I’ll just get clarkes panels and stick these in my euro setup.

Pfurmel · Posted: Wed Apr 11, 2012 3:47 am Post subject:

I think 3 outputs for the 291. It is a nice addition to have the extra outs so it seems a waste not to have them on the front panel.

gwaidan · Posted: Wed Apr 11, 2012 6:47 am Post subject:

I also vote for additional outs on the 291

diophantine · Posted: Wed Apr 11, 2012 9:17 am Post subject:

I meant to write more when I was sitting down at my computer, but that hasn't happened in days so here goes on my phone...

First, my rationale for building this Buchla clone is to have something functionally equivalent to the original system. Historical reasons, DIY fun, and an interesting standalone system. Same as why I am building a Synthasystem. While I am getting panels for the 194 and CVP, which aren't totally original, but they are Buchla style and I have a boatload of PCBs. (Also, the feature density of the original 194 sucked.)

To that end, perhaps in a vaguely roundabout way, I'd prefer panels & module outputs to be as close as possible to the originals.

266 SoU: yup, already ordered boards.

291 filter: I just want 2 BP outputs. I like the design, the functionality, love bandpass, and want the multed out.

106 mixer: yes, please! Seems to make more sense than the 206, which I believe has a bunch of switches for bus connections(?).

180 style EG: yes, please! Looks great, but could you move Note Duration to the bottom like the 180, and also b/c that section corresponds to the switches?

111 RM: possibly interested.

245 sequencer: yes! I, too, would love to find out more about the original/see pics.

As far as oscillators go, I would like a 259 panel, even if it takes me years to complete. Or, a double width panel similar that implements the features that have/are being replicated by pcbs. I'd rather that than an independent timbral module.

I doubt that I would pick up a Tabula Rasa panel (though I do plan to do this module in MU format).

Ok, i think that covered the discussed modules with my thoughts. (Sorry if I missed one.) Thanks for all your awesome work on this!

Rod Serling Fan Club · Posted: Wed Apr 11, 2012 12:45 pm Post subject:

Thanks for the thoughtful reply dio -

monokinetic · Posted: Wed Apr 11, 2012 1:29 pm Post subject:

Rod Serling Fan Club · Posted: Wed Apr 11, 2012 7:55 pm Post subject:

Here is the 266 panel thus far. I am working on improving the other panels so they share similar fonts and such.

PF · Posted: Thu Apr 12, 2012 12:04 am Post subject: