[IN STOCK] Buchlidian Voltage Proc PCB, Euro Panel (CVP)

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negativspace
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[IN STOCK] Buchlidian Voltage Proc PCB, Euro Panel (CVP)

Post by negativspace » Sun May 08, 2011 9:02 pm

The simple but useful circuit was originally designed by Chris MacDonald, modified by Peter Grenader, then further modified by Matthias Herrmann (fonik) and released as a schematic and P&P layout in 2006. It has +/-5v of offset, a glide control, and an attenuverter. There are pads on the board for one bi-color LED. I based this heavily on Matthias' version of the circuit, with an additional buffered THROUGH connection and a modified output stage which will now drive a passive multiple. This is being produced with Matthias' blessing.

- PCB dimensions: 1.5" x 2.85" (~38mm x ~72mm)
- MOTM + Euro power connections.
- On-board pots: 1" on-center to match the 4hp Euro panels.
- 2 mounting holes for those who don't want 1" pot spacing and wish to use a bracket.
- Optional reverse-power protection.

Image Image

The PANEL price is $15.00/ea. The PCB price is $10.00/ea, and there will be a $3 shipping charge per order. I will gladly ship overseas for an extra $8 per order.

The best way to pay is with Paypal - my address is jcoates42 (at) gmail [dot] com.

BOM:

Resistors - 1% (Mouser # 271-XXX-RC, where XXX is the value.)
[1] 33K (+/-12v operation) or 47K (+/-15v operation)
[5] 47k
[1] 39k
[1] 100k
[1] 4.7k
[2] 470R (R = 'Ohm')
[1] 680R

Capacitors
[2] 10uF/22uF electrolytic
[2] 100nF (0.1uF) ceramic
[1] 1uF electrolytic

Semis/ICs
[2] 1N4001
[1] TL074
[1] TL072CN or LT1013, both available @ Mouser
[1] LED


Misc.
[1] 20k Trimpot
[2] Ferrite Bead
[1] 10-pin Euro or 4-pin MTA-156 (Straight or Right-angle.) (MOTM)
[2] PTC Resettable Fuse

Pots (For the 4hp Euro panel, you'll need to use a smaller pot such as the 9mm Alphas from Small Bear/Banzai Music.)
[2] 50k Linear
[1] 1M Audio
Last edited by negativspace on Mon Feb 26, 2018 3:55 pm, edited 174 times in total.

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mikecameron
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Post by mikecameron » Sun May 08, 2011 9:11 pm

2 for me please!

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scozbor
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Post by scozbor » Sun May 08, 2011 9:24 pm

2 for me :tu:

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wwall
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Post by wwall » Sun May 08, 2011 9:26 pm

Count me in for four!

(Hoping you won't hold my low post count against me.) Image

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decaying.sine
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Post by decaying.sine » Sun May 08, 2011 9:37 pm

*double post accident
Last edited by decaying.sine on Sun May 08, 2011 9:37 pm, edited 1 time in total.
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decaying.sine
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Post by decaying.sine » Sun May 08, 2011 9:37 pm

I would like 8 please.
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Post by questionable » Sun May 08, 2011 9:41 pm

4 boards, please!

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Post by gwaidan » Sun May 08, 2011 9:48 pm

2 for me please!

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Post by active » Sun May 08, 2011 10:00 pm

i know i want 2. i will potentially want 4. as a relatively new wiggler, i am a bit in the dark on what i could do with this. if anyone cares to shed some light, i will more then likely get 4.

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Post by patchdub » Sun May 08, 2011 10:09 pm

active wrote:i am a bit in the dark on what i could do with this. if anyone cares to shed some light, i will more then likely get 4.
yes please illuminate me as well.

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tailwagger
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Post by tailwagger » Sun May 08, 2011 10:13 pm

I'm in for four.
On the Easel

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fluxmonkey
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Post by fluxmonkey » Sun May 08, 2011 10:21 pm

overall dimensions of the board, por favor?
www.fluxmonkey.com

BUILDER FOR HIRE - kits or custom, email me with your needs

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Re: 'Buchlidian Voltage Processor' PCB offer [Closes 5/22]

Post by negativspace » Sun May 08, 2011 10:25 pm

negativspace wrote:...and this 1.5" x 3.2" PCB is the end result....
8_) :mrgreen:

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SMS303
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Post by SMS303 » Sun May 08, 2011 10:29 pm

I'm in for three.. make it FOUR!... :tu:
Unless Falafelbiels wants them too, then more...
Last edited by SMS303 on Sun May 08, 2011 10:39 pm, edited 1 time in total.
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negativspace
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Post by negativspace » Sun May 08, 2011 10:36 pm

patchdub wrote:
active wrote:i am a bit in the dark on what i could do with this. if anyone cares to shed some light, i will more then likely get 4.
yes please illuminate me as well.
It's just a basic set of CV tools.

The offset/attenuator controls are useful for scaling and shifting voltages - turning a +/- 2.5v waveform into a 0-5v signal to open a VCA or squashing a 0-5v signal into a 1-3v signal prior to a quantizer, for example.

The glide circuit is a simple slew, good for taking the edge off of fast triggers to eliminate VCA click, adding glide to a pitch CV for portamento, etc. I use it with my RCD & uStep to turn the triggers into 'softer' events for more subtle modulations.

Here's the panel that this has been designed for, it might give you some idea as to what it actually does in the real world. (I know seeing a panel design always helps me grok a module.) This panel uses 2 of these PCBs, one per channel. The mix section is done offboard with an additional CGS04 PCB and the two switches up top are ON-OFF-(ON) switches for muting or manually injecting the signal, what have you.


Image
Last edited by negativspace on Sun May 08, 2011 11:44 pm, edited 3 times in total.

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mome rath
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Post by mome rath » Sun May 08, 2011 10:37 pm

i will buy 2
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jarvis
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Post by jarvis » Sun May 08, 2011 10:49 pm

I'm down for 4

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Post by notimeforlove » Sun May 08, 2011 11:07 pm

This board looks like it would be a single CV processor yeah? I ask cause Fonix's module contains 2 right next to each other an the 255 has 8 in one module. If it's just a single, I think I'll late 4.

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negativspace
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Post by negativspace » Sun May 08, 2011 11:11 pm

Yes, it is a single board per channel.

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glacial23
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Post by glacial23 » Sun May 08, 2011 11:24 pm

I'll take two.

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rico loverde
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Post by rico loverde » Sun May 08, 2011 11:35 pm

4 please. Thank you for this. Very cool.
works for Darkplace Manufacturing

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ATOM
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Post by ATOM » Mon May 09, 2011 1:03 am

I take 4

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beautyofdecay_
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Post by beautyofdecay_ » Mon May 09, 2011 2:43 am

I'll take 4.

Thanks!

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ndkent
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Post by ndkent » Mon May 09, 2011 3:14 am

two

Norman_Phay

Post by Norman_Phay » Mon May 09, 2011 4:08 am

Can you put me down for 4 x these, please. Thankls!

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