Living VCOs

jhaible · Posted: Wed Dec 10, 2008 3:59 pm Post subject:

Here's the frontpanel of the JH-5A, which shows what features a combination od Oscillator Driver + 3 VCOs would have.

JH.

Now playing: Tori Amos, American Doll Posse

jh5_front.pdf

Description:

Download (listen)

Filename:

jh5_front.pdf

Filesize:

119.9 KB

Downloaded:

1231 Time(s)

blue hell · Posted: Wed Dec 10, 2008 4:08 pm Post subject:

jhaible · Posted: Wed Dec 10, 2008 4:10 pm Post subject:

jhaible · Posted: Wed Dec 10, 2008 4:14 pm Post subject:

Poll added - please vote!

JH.

Luka · Joined: Jun 29, 2007 Posts: 1003 Location: Melb.

i voted for single as it makes more sense to me
however now i think about it almost all modules in my synth are duals or quads so perhaps im easy either way

/mr · Posted: Wed Dec 10, 2008 4:45 pm Post subject:

Sebo · Joined: Apr 27, 2007 Posts: 564 Location: Argentina

A triple VCO is very appealing to me.
[/quote]

Dego · Joined: Apr 22, 2008 Posts: 139 Location: Sweden

numbertalk · Posted: Thu Dec 11, 2008 7:53 am Post subject:

I voted for the triple VCO as well.

a_guy_called_tom · Joined: Jun 21, 2008 Posts: 31 Location: mountains

i would be very interested (2-4 vcos), assuming it works with +- 12 volts, the pcb is small enough for eurorack and there aren't any really hard to get parts needed.
sounds like a great project!
tom

mono-poly · Posted: Thu Dec 11, 2008 10:04 am Post subject:

I'd love to see a Buchla 158 or 144 like vco.
Simple vco with 1 waveform output.
But great fm and/or am sound.

frijitz · Posted: Thu Dec 11, 2008 12:56 pm Post subject:

bugfight · Joined: Aug 02, 2007 Posts: 188 Location: Arlington, TX USA

hehe which fanatic will try to kill the "living" vco?

mono-poly · Posted: Thu Dec 11, 2008 3:03 pm Post subject:

johans121 · Posted: Thu Dec 11, 2008 3:37 pm Post subject:

I'd be interested in both JH's & Ian's. More VCO's the better.

Peake · Posted: Thu Dec 11, 2008 3:50 pm Post subject:

jhaible · Posted: Thu Dec 11, 2008 4:05 pm Post subject:

numbernone · Joined: Aug 16, 2006 Posts: 477 Location: new york city

I am interested in several triples if "cheap" falls into my definition.

Oh hell I would probably take several regardless.

frijitz · Posted: Thu Dec 11, 2008 10:09 pm Post subject:

jhaible · Posted: Fri Dec 12, 2008 12:32 am Post subject:

TekniK · Joined: Aug 10, 2008 Posts: 1059

2 vco's on one pcb is ideal Juergen,but would be perfect if u just could add sine for both 2 on the pcb

Tenine · Joined: Sep 13, 2006 Posts: 44 Location: Coventry

Looks pretty interesting to me!
This could be a nice first module that follows the 1V/Oct standard.

What sort of parts will be needed?
Just standard op-amps or OTAs? Anything that's hard to find outside Europe?

Thanks.

Tenine · Joined: Sep 13, 2006 Posts: 44 Location: Coventry

Looks pretty interesting to me!
This could be a nice first module that follows the 1V/Oct standard.

What sort of parts will be needed?
Just standard op-amps or OTAs? Anything that's hard to find outside Europe?

Thanks.

jhaible · Posted: Sat Dec 13, 2008 2:39 am Post subject:

fluxmonkey · Joined: Jun 24, 2005 Posts: 708 Location: cleve

i polled in for 1-osc-per-board... altho i'd probably build a set, my thinking is that separate boards would make the physical build easier: i usually have lots of ins and out on my oscillators (multiple modulations etc) and the number of flying wires can get pretty ratsnest; individual boards would help divide and conquer that confusion.

along the same lines, i also find it helpful to have the modulation ins and the outputs routed to headers that are physically proximate, and ideally near the edge of the board... again, for sanity in construction. board-mounted pots sometimes serve the same idea, but aren't as useful to me 'cause i build in frac and most such pots are spaced for 5u... but its sort of the same idea. of couse, this is secondary to requirments to electically isolate sections from crosscoupling, etc.

just my input, j. in any event i'm in for this. much appreciated as always!

b