Buchla 100 system diy build

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

Moderators: Kent, luketeaford, lisa, Joe.

Post Reply
User avatar
APETECHNOLOGY
Wiggling with Experience
Posts: 273
Joined: Fri Oct 16, 2015 9:22 pm
Location: DETROIT
Contact:

Re: regarding modal #140?

Post by APETECHNOLOGY » Fri Mar 15, 2019 9:31 pm

APETECHNOLOGY wrote:
moogboy010 wrote:BTW;Apetechnology,do you show the correction on the (3-way switch)?Doesn't look like it in the schematic of the p.c.board?
i corrected it in my drawing.
s6 to contact 3 :smoke:

User avatar
boops
Ultra Wiggler
Posts: 808
Joined: Mon May 06, 2013 6:06 am
Location: Paris France
Contact:

Post by boops » Fri Apr 12, 2019 2:15 pm

Great work here !!!

I m looking for a buchla 175 schematic,anyone? Thanks
FS :custom buchla 203 style càbinet ,skiff new design,boat ,hardware for diy cabinet ,easel case ,new 1u to 10u to 56u and more. / New 208 buchla card 12 /
HQ small case buchla psu PCB
https://www.muffwiggler.com/forum/viewt ... 93#3118393
https://www.muffwiggler.com/forum/viewt ... highlight=

User avatar
guitarfool
Common Wiggler
Posts: 135
Joined: Sun Dec 19, 2010 11:16 am
Location: Annapolis, Maryland

Post by guitarfool » Fri Apr 12, 2019 2:22 pm

boops wrote:Great work here !!!

I m looking for a buchla 175 schematic,anyone? Thanks
La67 175 schematic on this page: lasesentaysiete build info

User avatar
boops
Ultra Wiggler
Posts: 808
Joined: Mon May 06, 2013 6:06 am
Location: Paris France
Contact:

Post by boops » Fri Apr 12, 2019 2:43 pm

Wahou. so quick, many many thanks
:bananaguitar:
FS :custom buchla 203 style càbinet ,skiff new design,boat ,hardware for diy cabinet ,easel case ,new 1u to 10u to 56u and more. / New 208 buchla card 12 /
HQ small case buchla psu PCB
https://www.muffwiggler.com/forum/viewt ... 93#3118393
https://www.muffwiggler.com/forum/viewt ... highlight=

moogboy010
Common Wiggler
Posts: 92
Joined: Sat Mar 18, 2017 1:46 pm
Location: Virginia

140 switch correction!

Post by moogboy010 » Wed Apr 24, 2019 11:11 pm

Apetechnology,Thanks for the #140 schematic correction and the boards'!Really kind of you to share your work!Great Job! :hail:

PHETRUS
Learning to Wiggle
Posts: 10
Joined: Sun May 06, 2018 3:40 am
Location: uk

Post by PHETRUS » Sun May 12, 2019 11:09 am

hi to all, first thank you for the amazing work, I wouldn't be able to finish any of my projects (Buchla 100) without the information gained in here or related threads so big thank you guys! [/img]

PHETRUS
Learning to Wiggle
Posts: 10
Joined: Sun May 06, 2018 3:40 am
Location: uk

Post by PHETRUS » Sun May 12, 2019 11:33 am

I thought will share with others some ideas, as I'm quiet fresh to DIY electronics there may be some mistakes or unfortunate aspects of the projects and will be very happy if corrected, anyway will post things I personally confirmed as working, so at first the layout for 120 I'm yet in the process of completing, but have already made 110 using the same layout so logically it should work, 3 pcb's: A bottom and 2xB to top maybe someone will find it useful, will post some other stuff later :)
You do not have the required permissions to view the files attached to this post.
Last edited by PHETRUS on Sun Jun 09, 2019 3:13 pm, edited 1 time in total.

User avatar
Spliffgroen
Learning to Wiggle
Posts: 19
Joined: Tue Oct 17, 2017 7:11 pm
Location: Groenedijk

Post by Spliffgroen » Sun Jun 09, 2019 1:40 pm

APETECHNOLOGY wrote:180 is here,
Image

Image

Nice works all over. Quation to you Ape, why did you decide to put those extra resisters there? I'm looking into the 180 atm.

Thanks!. :zombie:

User avatar
Spliffgroen
Learning to Wiggle
Posts: 19
Joined: Tue Oct 17, 2017 7:11 pm
Location: Groenedijk

Post by Spliffgroen » Sun Jun 16, 2019 9:31 am

Guys, I am working on a 110, since it got lots of space left I firstly was thinking making it quad. But overnight I thinking about making it more 292ish. Its inspired by the thomas white design. I was curious and sharing it, how about you thoughts about the design and missing parts / maybe less for the 100 purist.

Cheers.

moogboy010
Common Wiggler
Posts: 92
Joined: Sat Mar 18, 2017 1:46 pm
Location: Virginia

Regarding the #180

Post by moogboy010 » Sun Jun 30, 2019 11:45 am

Spliffgroen,you could probably build the 4-envelope that Peake has on his(Ebolatone) site! would probably be much easier than making a (#292)?Also,you could double the boards' for the(#180) with standoffs'.You would have to come-up with some different art-work for the sustain-section switching(int/ext.)Fluxmonkey has the(#180)boards',which makes' things' a little easier,if you don't like making P.C.Boards' and the drilling a million small holes' for componants'! :hihi:

User avatar
Spliffgroen
Learning to Wiggle
Posts: 19
Joined: Tue Oct 17, 2017 7:11 pm
Location: Groenedijk

Post by Spliffgroen » Sun Jun 30, 2019 3:02 pm

moogboy010
, yes I'm thinking the same. I'll do the the lpf later on.. Would be nice to have a lpf on the 100. whats wrong with the decay switch on the board, looks fine to me? :cookiemonster:

moogboy010
Common Wiggler
Posts: 92
Joined: Sat Mar 18, 2017 1:46 pm
Location: Virginia

Post by moogboy010 » Sun Jun 30, 2019 5:14 pm

The original #100 only allows' for(two)sustain switches,but could be modified for four,as long as there is enough room?Or,you could use two #100 ADS' panels',for an original look,unless you are not worried about it being original to the #100?
:hmm:

PHETRUS
Learning to Wiggle
Posts: 10
Joined: Sun May 06, 2018 3:40 am
Location: uk

Re: Buchla 100 system diy build

Post by PHETRUS » Fri Apr 10, 2020 8:00 pm

Hi guys, I'm not sure if this thread is still active, but anyway I have a question to ask if somebody have a spare few minutes to spend on this issue and help me? basically, I build the 123 and it works ok, but strange stuff happens, when I measure the pulse out it is around 15V, at every stage, but when I hook it up to 180 envelope gen. it drops to almost non, so nothing happens, no signal being initiated unless I pull the cable off and reconnect it again then by moment I can hear it gives an impulse, but only that stage then nothing again. I'm still learning so I don't know, it may be something obvious for somebody who really know this stuff. thanks in advance

User avatar
vtl5c3
Common Wiggler
Posts: 158
Joined: Fri Jan 16, 2009 5:49 pm

Re: Buchla 100 system diy build

Post by vtl5c3 » Fri Apr 10, 2020 8:18 pm

Phetrus: Are you able to trigger the 180 from something else? I'm wondering if the problem is with the 123 or the 180.

User avatar
vtl5c3
Common Wiggler
Posts: 158
Joined: Fri Jan 16, 2009 5:49 pm

Re: 120

Post by vtl5c3 » Fri Apr 10, 2020 8:32 pm

Hi Phetrus. Somehow I missed your post with the 120 layout. Would you mind sharing the panel design? Also, how well does your build work?
PHETRUS wrote:
Sun May 12, 2019 11:33 am
I thought will share with others some ideas, as I'm quiet fresh to DIY electronics there may be some mistakes or unfortunate aspects of the projects and will be very happy if corrected, anyway will post things I personally confirmed as working, so at first the layout for 120 I'm yet in the process of completing, but have already made 110 using the same layout so logically it should work, 3 pcb's: A bottom and 2xB to top maybe someone will find it useful, will post some other stuff later :)

PHETRUS
Learning to Wiggle
Posts: 10
Joined: Sun May 06, 2018 3:40 am
Location: uk

Re: Buchla 100 system diy build

Post by PHETRUS » Sat Apr 11, 2020 10:36 pm

hello and thank you for taking time on this, yes 180 works fine with 140, and all functions in 123 are ok only the pulse outs drop while connected to the envelope gen. the 120 I started, but had a hell with making the pcb, I started this stuff in really primitive way, don't own any proper tool to really be able producing decent quality of pcb, but with time I've learned to export the gerber files out of pdf so now just waiting for the professionally printed board.

PHETRUS
Learning to Wiggle
Posts: 10
Joined: Sun May 06, 2018 3:40 am
Location: uk

Re: Buchla 100 system diy build

Post by PHETRUS » Sat Apr 11, 2020 10:53 pm

about 120, the panel do you mean the face-plate or pcb? I made those as 3 stackable one on top of the other so no cables will be needed, but for now still waiting for the delivery and hopefully with no unexpected errors or mistakes (on my part obviously). I also have prepared 107 using exactly same trick, in 107 the kind of benefit of using 110s is to have direct outs so the gates could be used independently if needed, but yes it won't be the exact clone of the guts of original 107.

PHETRUS
Learning to Wiggle
Posts: 10
Joined: Sun May 06, 2018 3:40 am
Location: uk

Re: Buchla 100 system diy build

Post by PHETRUS » Sat Apr 11, 2020 10:57 pm

these are the boards
You do not have the required permissions to view the files attached to this post.
Last edited by PHETRUS on Sun Apr 12, 2020 5:00 am, edited 1 time in total.

PHETRUS
Learning to Wiggle
Posts: 10
Joined: Sun May 06, 2018 3:40 am
Location: uk

Re: Buchla 100 system diy build

Post by PHETRUS » Sat Apr 11, 2020 11:02 pm

also I checked the little DMMT3904W and it works for the matched pairs instead of 2n3904 so I made here the option for using it too.

PHETRUS
Learning to Wiggle
Posts: 10
Joined: Sun May 06, 2018 3:40 am
Location: uk

Re: Buchla 100 system diy build

Post by PHETRUS » Fri Apr 17, 2020 3:57 pm

update on 123, I've prepared a new board (exactly the same as previous one) and all work as it should (at least in the part I've populated), the only difference between are in: pn3565 used instead of previously 2n3904, the pnps are the same 2n3906 and one pnp in the upper part 2n4917, the 910pF polystyrene instead of ceramic NPO 1000pF what in reality have 950- 980pF.
You do not have the required permissions to view the files attached to this post.

PHETRUS
Learning to Wiggle
Posts: 10
Joined: Sun May 06, 2018 3:40 am
Location: uk

Re: Buchla 100 system diy build

Post by PHETRUS » Sun May 03, 2020 2:31 pm

detail of 158 with the small DMMT3904W
You do not have the required permissions to view the files attached to this post.

Post Reply

Return to “Music Tech DIY”