Buchalish 111 Ring Mod PCBs

From circuitbending to homebrew stompboxes & synths, keep the DIY spirit alive!

Moderators: Kent, Joe., luketeaford

Post Reply
User avatar
fluxmonkey
Super Deluxe Wiggler
Posts: 1913
Joined: Sat Oct 18, 2008 10:05 pm
Contact:

Buchalish 111 Ring Mod PCBs

Post by fluxmonkey »

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.
www.fluxmonkey.com

BUILDER FOR HIRE - kits or custom, email me with your needs
User avatar
FetidEye
demonic space drone
Posts: 2231
Joined: Mon Dec 06, 2010 5:00 pm
Location: Red Zone
Contact:

Post by FetidEye »

i'd like 1 board
User avatar
Rod Serling Fan Club
aquatic hitchhiker
Posts: 3760
Joined: Mon Dec 14, 2009 12:13 am
Location: MNTN

Post by Rod Serling Fan Club »

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.
User avatar
hexinverter
the nettles make me think happy times
Posts: 3017
Joined: Thu Aug 25, 2011 8:48 pm
Location: Montreal, Canada

Post by hexinverter »

I'm down like a clown! :cloud:
User avatar
mono-poly
Le Cheff
Posts: 5423
Joined: Fri Nov 21, 2008 3:40 pm
Location: Rotterdam, Netherlands

Post by mono-poly »

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

http://www.mono-poly.nl
http://www.noodlebar.org

WTB blue lantern purple vco
User avatar
logicgate
Super Deluxe Wiggler
Posts: 1467
Joined: Wed May 30, 2012 11:43 am
Location: Fillory

Post by logicgate »

I'd take one
User avatar
thebot
haggis wuffler
Posts: 476
Joined: Mon Jun 20, 2011 4:51 pm
Location: Edinburgh, Scotland

Post by thebot »

I'd take 2 definitely, maybe more depending on price.
User avatar
wwall
Common Wiggler
Posts: 111
Joined: Sun Nov 15, 2009 4:13 pm
Location: Memphis, TN

Post by wwall »

I'm up for two boards.
User avatar
aladan
Desperately Seeking Sondra
Posts: 552
Joined: Tue Feb 14, 2012 12:52 am
Location: Adelaide, Australia

Re: [Interest Check] Buchalish 111 Ring Mod PCBs

Post by aladan »

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...
User avatar
wavehead
Super Deluxe Wiggler
Posts: 1235
Joined: Sat Nov 14, 2009 7:58 pm

Post by wavehead »

Interested in 2 boards and one of RSFC's panels.
User avatar
CJ Miller
Super Deluxe Wiggler
Posts: 4256
Joined: Thu Apr 28, 2011 3:10 pm
Location: Mumfordshire

Post by CJ Miller »

Two boards for me. please!
User avatar
ndkent
Super Deluxe Wiggler
Posts: 4015
Joined: Tue Dec 23, 2008 5:59 am

Post by ndkent »

two
User avatar
asterisk
Super Deluxe Wiggler
Posts: 1221
Joined: Sat Jun 19, 2010 11:37 am
Location: Burlington VT

Post by asterisk »

id take 1.
User avatar
rico loverde
Super Deluxe Wiggler
Posts: 4036
Joined: Fri Aug 06, 2010 10:40 am
Location: Portland, Oregon

Post by rico loverde »

IN FOR 1
works for Darkplace Manufacturing
User avatar
djangosfire
dimensionally transcendental
Posts: 3454
Joined: Sun Sep 06, 2009 11:13 pm

Post by djangosfire »

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_)
User avatar
FrankV
waggling wiggler
Posts: 316
Joined: Thu Oct 22, 2009 8:53 pm

Post by FrankV »

I'd be up for two!
User avatar
MechaSeb
Super Deluxe Wiggler
Posts: 1545
Joined: Fri Apr 02, 2010 7:21 pm
Location: France

Post by MechaSeb »

Up for two please !
Last edited by MechaSeb on Sun Oct 28, 2012 5:08 am, edited 1 time in total.
User avatar
diophantine
Super Deluxe Wiggler
Posts: 2569
Joined: Mon Jan 10, 2011 2:50 pm
Location: San Diego, CA, USA

Post by diophantine »

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!
User avatar
MechaSeb
Super Deluxe Wiggler
Posts: 1545
Joined: Fri Apr 02, 2010 7:21 pm
Location: France

Post by MechaSeb »

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 ?
User avatar
fluxmonkey
Super Deluxe Wiggler
Posts: 1913
Joined: Sat Oct 18, 2008 10:05 pm
Contact:

Post by fluxmonkey »

prototype:

Image
www.fluxmonkey.com

BUILDER FOR HIRE - kits or custom, email me with your needs
User avatar
janvanvolt
Wiggling with Experience
Posts: 342
Joined: Tue Nov 18, 2008 6:39 am

Post by janvanvolt »

Two are fine for me.
User avatar
bsmith
Super Deluxe Wiggler
Posts: 2158
Joined: Thu Jan 07, 2010 11:33 am
Location: Dallas

Post by bsmith »

2 here!
User avatar
raisinbag
Super Deluxe Wiggler
Posts: 1708
Joined: Thu Aug 18, 2011 11:40 pm

Post by raisinbag »

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!
User avatar
mikecameron
Thread Killer
Posts: 985
Joined: Sat Nov 20, 2010 2:13 am
Location: Peoria, IL
Contact:

Post by mikecameron »

one for me!
User avatar
boothnavy
Super Deluxe Wiggler
Posts: 1014
Joined: Mon Mar 29, 2010 9:18 pm
Location: Westlake Village
Contact:

Post by boothnavy »

sure, a couple.
boothnavy - synthesist

www.analogcraftsman.com
Post Reply

Return to “Music Tech DIY”