Buchalish 111 Ring Mod PCBs

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fluxmonkey
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Buchalish 111 Ring Mod PCBs

Post by fluxmonkey » Wed Oct 24, 2012 3:19 pm

UPDATE 8/30/18: back in stock...


UPDATE 9/13/13: First batch of boards are sold out, thanks everyone. may do a second run based on interest, and/or in support of another run of panels.


UPDATE 12/9: Boards are in and tested good, and are now available for purchase: go to http://www.fluxmonkey.com/fluxmerch.htm to order. thanks everyone for your patience


[UPDATE 11/26]: Boards have been ordered and are scheduled to arrive this week. After I do one more reference build, I will post ordering instructions.


[INITIAL POST] Gauging interest in PCBs for an all-discreet ring modulator, based on the Buchla 111 schematic and a DIY layout done by Romeo Fahl.

PCB is 2.5" x 3.8", soldermask and silkscreen. Price will be abt $15@, depending on interest. Please post a reply w/ number of boards you're interested in. NOT taking orders at this time, I will post ordering information if there's sufficient interest.

BOM:
Value Qty.
10r x2
10k x2
100k x2
1k5 x4
220r x2
2k2 x1
22k x1
330r x2
3k3 x5
33k x1
47r x3
680 r x6
6k8 x4

100n (.1uf) x1
2n2 (.0022uf) x2
4.7uf x2
5.6uf x2
10uf x1

1k trim pot x4
20k trim pot x1

2n3904 x7
2n3906 x3

ferrite bead
.100 power header
jacks x 4

original transistors: IT122 (matched NPN pair) x3; 2n3565 (NPN) x1; 2n4916 (PNP) x3

bbob
Last edited by fluxmonkey on Thu Aug 30, 2018 5:53 pm, edited 7 times in total.
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BUILDER FOR HIRE - kits or custom, email me with your needs

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FetidEye
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Post by FetidEye » Wed Oct 24, 2012 3:24 pm

i'd like 1 board

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Rod Serling Fan Club
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Post by Rod Serling Fan Club » Wed Oct 24, 2012 4:02 pm

So you figured out the trimming and have these fully operational? I'd probably take 4.

I would also be interested in doing a buchla format panel for these if people are interested. I could just do the original or make it as a double, which would be 4 ring mods but would still only take up about half the panel... I am open to ideas.
Last edited by Rod Serling Fan Club on Wed Oct 24, 2012 8:19 pm, edited 2 times in total.

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hexinverter
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Post by hexinverter » Wed Oct 24, 2012 4:19 pm

I'm down like a clown! :cloud:
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mono-poly
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Post by mono-poly » Wed Oct 24, 2012 4:34 pm

I did a pcb design for this and waiting for pcb's i've orderd.
The farad is the captain of my print.

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logicgate
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Post by logicgate » Wed Oct 24, 2012 4:54 pm

I'd take one

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thebot
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Post by thebot » Wed Oct 24, 2012 5:09 pm

I'd take 2 definitely, maybe more depending on price.

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wwall
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Post by wwall » Wed Oct 24, 2012 5:28 pm

I'm up for two boards.

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aladan
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Re: [Interest Check] Buchalish 111 Ring Mod PCBs

Post by aladan » Wed Oct 24, 2012 5:36 pm

fluxmonkey wrote:Gauging interest in PCBs for an all-discreet ring modulator, based on the Buchla 111 schematic and a DIY layout done by Romeo Fahl.

PCB is 2.5" x 3.8", soldermask and silkscreen. Price will be abt $15@, depending on interest. Please post a reply w/ number of boards you're interested in. NOT taking orders at this time, I will post ordering information if there's sufficient interest.

bbob
I'm interested in 2 please...

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wavehead
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Post by wavehead » Wed Oct 24, 2012 5:48 pm

Interested in 2 boards and one of RSFC's panels.

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CJ Miller
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Post by CJ Miller » Wed Oct 24, 2012 7:12 pm

Two boards for me. please!

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ndkent
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Post by ndkent » Wed Oct 24, 2012 7:14 pm

two

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asterisk
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Post by asterisk » Wed Oct 24, 2012 8:25 pm

id take 1.

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rico loverde
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Post by rico loverde » Wed Oct 24, 2012 8:27 pm

IN FOR 1
works for Darkplace Manufacturing

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djangosfire
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Post by djangosfire » Wed Oct 24, 2012 8:36 pm

Hell yes I'd take a few :)

Also, I have an original 111 Buchla Dual Ring Modulator module... so if there is a need for pics or info, just send me a PM.

:guinness:

NOW someone build the 196 Phase Shifter, and we can all do some killer frequency shifting patch madness 8_)
Thank you - Hope your day is awesome!

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FrankV
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Post by FrankV » Wed Oct 24, 2012 9:16 pm

I'd be up for two!

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MechaSeb
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Post by MechaSeb » Wed Oct 24, 2012 9:29 pm

Up for two please !
Last edited by MechaSeb on Sun Oct 28, 2012 5:08 am, edited 1 time in total.

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diophantine
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Post by diophantine » Wed Oct 24, 2012 9:31 pm

Are these PCBs a single RM (i.e. 1/2 of a 111), or two?

If single RMs, I'll take 4 - otherwise 2! (For 4 RMs total)

Thx!

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MechaSeb
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Post by MechaSeb » Wed Oct 24, 2012 9:31 pm

mono-poly wrote:I did a pcb design for this and waiting for pcb's i've orderd.
Did you redraw the exact original pcb ? Any hard to find parts on this one ?

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fluxmonkey
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Post by fluxmonkey » Wed Oct 24, 2012 9:35 pm

prototype:

Image
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janvanvolt
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Post by janvanvolt » Wed Oct 24, 2012 9:39 pm

Two are fine for me.

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bsmith
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Post by bsmith » Wed Oct 24, 2012 9:44 pm

2 here!

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raisinbag
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Post by raisinbag » Wed Oct 24, 2012 9:54 pm

So is it using 3904 and 3906's? I'd grab one then. I don't think I have built anything other than guitar pedals that use no ic's. Cool!

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mikecameron
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Post by mikecameron » Wed Oct 24, 2012 9:55 pm

one for me!

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boothnavy
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Post by boothnavy » Wed Oct 24, 2012 10:02 pm

sure, a couple.
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