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Buchla format panels discussion |
Rod Serling Fan Club
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 Posted: Mon May 21, 2012 5:14 pm Post subject: |
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I was under the impression Zthee wasn’t really into doing panel designs anymore. A panel-mount PCB would be wonderful, have you seen the wiring on a completed Klee? It’s fairly insane. Making everything fit behind a 7”X8.5” panel might be rough. I can definitely put the idea on the list of eventual panels. If people have more ideas on where to go with a buchlish Klee panel please share.
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djs
Veteran Wiggler
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Rod Serling Fan Club
aquatic hitchhiker
Joined: 14 Dec 2009
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zoot horn rollo
Common Wiggler
Joined: 30 May 2011
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Location: Western Australia
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| Posted: Mon May 21, 2012 11:18 pm Post subject: |
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| Rod Serling Fan Club wrote: | | I was under the impression Zthee wasn’t really into doing panel designs anymore. A panel-mount PCB would be wonderful, have you seen the wiring on a completed Klee? It’s fairly insane. Making everything fit behind a 7”X8.5” panel might be rough. I can definitely put the idea on the list of eventual panels. If people have more ideas on where to go with a buchlish Klee panel please share. |
Yeah, I think the wiring would drive me insane ... but it looks so cool!
| Rod Serling Fan Club wrote: | | Have you looked at the lanterman pulser pcb? I think you could duplicate most of the functionality of the 140 and some extra stuff. |
Does the lanterman easel pulser allow you to control pulse width (length), either manually or with cv? I haven't wrapped my head around the inputs and outputs on the pcb yet but I can't seem to find this feature anywhere. |
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dar303
Common Wiggler
Joined: 12 Feb 2011
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Location: Stockholm, Sweden
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| Posted: Tue May 22, 2012 3:41 am Post subject: |
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Zthee is probably going to do a run of the panels pro screenprinted with the right colour and all plus daughterboard, we talked about it the other day.
He'll let you know when it's time!  |
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jooks
Wiggling with Experience
Joined: 26 Apr 2009
Last Visit: 21 May 2013
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Location: Umeå
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| Posted: Tue May 22, 2012 3:47 am Post subject: |
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| Rod Serling Fan Club wrote: | | I was under the impression Zthee wasn’t really into doing panel designs anymore. A panel-mount PCB would be wonderful, have you seen the wiring on a completed Klee? It’s fairly insane. Making everything fit behind a 7”X8.5” panel might be rough. I can definitely put the idea on the list of eventual panels. If people have more ideas on where to go with a buchlish Klee panel please share. |
Yeah a panel mount pcb would be wonderful! I think its also a must for Zthees design since theres no holes to hold the sliderpots (and no room to add them). To use my design you have to build a subpanel to hold the sliderpots (and subpanel is held by the switches). |
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Pfurmel
Super Deluxe Wiggler
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| Posted: Tue May 22, 2012 3:49 am Post subject: |
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| Rod Serling Fan Club wrote: | | I was under the impression Zthee wasn’t really into doing panel designs anymore. A panel-mount PCB would be wonderful, have you seen the wiring on a completed Klee? It’s fairly insane. Making everything fit behind a 7”X8.5” panel might be rough. I can definitely put the idea on the list of eventual panels. If people have more ideas on where to go with a buchlish Klee panel please share. |
I have wired one klee, it is pretty intense to say the least! Some kind of doughterboard would be almost essential to make that panel size work IMO.
dar303: That is great news, I really hope that goes ahead.
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jooks
Wiggling with Experience
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Location: Umeå
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| Posted: Tue May 22, 2012 3:59 am Post subject: |
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| dar303 wrote: | Zthee is probably going to do a run of the panels pro screenprinted with the right colour and all plus daughterboard, we talked about it the other day.
He'll let you know when it's time! |
Wow! Didn't see that post until after I wrote mine. That is fantastic news! But I dont like "probably" ;-) |
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mono-poly
Le Cheff
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| Posted: Tue May 22, 2012 4:16 am Post subject: |
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Would be awesome of Zthee came up with that Klee design.
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djs
Veteran Wiggler
Joined: 01 Sep 2010
Last Visit: 21 May 2013
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Location: South Beloit, IL
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| Posted: Tue May 22, 2012 8:17 am Post subject: |
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| zoot horn rollo wrote: |
Does the lanterman easel pulser allow you to control pulse width (length), either manually or with cv? I haven't wrapped my head around the inputs and outputs on the pcb yet but I can't seem to find this feature anywhere. |
I already have a spare fonik vc clock pcb, that's why I thought it could be re-purposed to a 140 type panel
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Rod Serling Fan Club
aquatic hitchhiker
Joined: 14 Dec 2009
Last Visit: 22 May 2013
Posts: 3433
Location: Germany
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| Posted: Tue May 22, 2012 9:36 am Post subject: |
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| zoot horn rollo wrote: |
| Rod Serling Fan Club wrote: | | Have you looked at the lanterman pulser pcb? I think you could duplicate most of the functionality of the 140 and some extra stuff. |
Does the lanterman easel pulser allow you to control pulse width (length), either manually or with cv? I haven't wrapped my head around the inputs and outputs on the pcb yet but I can't seem to find this feature anywhere. |
This is true, I don't think it has PWM but it does have a lot of other options. Some of its potential I haven't really wrapped my head around yet. I brought up another thread to help get answers:
http://www.muffwiggler.com/forum/viewtopic.php?t=59731&highlight=pulse r
| dar303 wrote: | Zthee is probably going to do a run of the panels pro screenprinted with the right colour and all plus daughterboard, we talked about it the other day.
He'll let you know when it's time! |
Great news!
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DIY panels and PCBs for Buchla and Euro format: http://synthpanels.blogspot.de/
youtube channel: http://www.youtube.com/user/MrPalebluedot |
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valis
aliens killed bigfoot
Joined: 30 Sep 2008
Last Visit: 22 May 2013
Posts: 1776
Location: eugene, oregon
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| Posted: Tue May 22, 2012 12:14 pm Post subject: |
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| Rod Serling Fan Club wrote: | | zoot horn rollo wrote: |
| Rod Serling Fan Club wrote: | | Have you looked at the lanterman pulser pcb? I think you could duplicate most of the functionality of the 140 and some extra stuff. |
Does the lanterman easel pulser allow you to control pulse width (length), either manually or with cv? I haven't wrapped my head around the inputs and outputs on the pcb yet but I can't seem to find this feature anywhere. |
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Check this out
http://modularsynthesis.com/lanterman/pulser/pulser.htm
| dar303 wrote: | Zthee is probably going to do a run of the panels pro screenprinted with the right colour and all plus daughterboard, we talked about it the other day.
He'll let you know when it's time! |
neeaaat |
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zoot horn rollo
Common Wiggler
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Location: Western Australia
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| Posted: Wed May 23, 2012 12:52 am Post subject: |
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| dar303 wrote: | Zthee is probably going to do a run of the panels pro screenprinted with the right colour and all plus daughterboard, we talked about it the other day.
He'll let you know when it's time! |
Yeah, I'm having a little trouble understanding what the lanterman pulser does and what it would be useful for. I'll keep an eye on that thread. |
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Rod Serling Fan Club
aquatic hitchhiker
Joined: 14 Dec 2009
Last Visit: 22 May 2013
Posts: 3433
Location: Germany
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| Posted: Wed May 23, 2012 12:57 pm Post subject: |
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| zoot horn rollo wrote: |
Yeah, I'm having a little trouble understanding what the lanterman pulser does and what it would be useful for. I'll keep an eye on that thread. |
It’s really just a trigger generator like the 140 (and the left sections of the 245/6). I’ve looked at the schematic a little and think I have a better idea of how it functions. It does have some cool extras. If you just looked here: http://modularsynthesis.com/lanterman/pulser/pulser.htm this is a simple build omitting a lot of what it can do but it gives you an idea of the base functionality. It doesn’t have PWM as far as I know and I haven’t looked into how that might be added. I’ll go down the line comparing a 140 panel to what the pulser PCB offers:
Outputs: It has 2 primary outputs CV(saw wave) and pulse. These outputs can be doubled and utilized with the “enable” features. I’m not clear on what the “alternate” outputs are on the 140
Inputs: Looking at the schematics I now believe that it does have start and stop already implemented. I thought “NOT” was an output but now I think they are the “Stop” inputs. The Start inputs are the “enable” inputs. What this feature does is basically create a voltage controlled gate for the outputs. When the voltage is going to the input it open the pulsing outputs. When the voltage goes into the “NOT” or stop it shuts the switch so no output. One of these could be wired so it doesn’t have the gate and is free running and the second could be used with the gating input for a couple different options. It’s can be bit more flexible in this regard than the 140.
Mode: I think all modes can be implemented with the pulser. Lanterman suggests a repetitive, single pulse and off setting.
Pulse Length: Again, I’m not sure how and if this feature can be easily added to the pulser. It’s the biggest omission.
Period: It has all the features of the 140 with the addition of a CV amount pot
The pulser also has a few things not implemented on the 140:
- CV inversion which can just be used with in and out to invert any signal (also seen on the music easel).
- Period CV input attenuation as mentioned above.
- As mentioned above you have some of options/flexibility with the start/stop (enable) functionality. Personally I would wire to eliminate enable A so you always pulse and CV on that output (dependent of course on how you have it running on your switch)then have the start/stop (or enable, NOT) on the B so you can gate the output CV/Pulse based on the start/stop CV inputs. Start might be poor terminology as it is really opening the switch to the let pulses through on the output and not actually starting the pulsing.
- It also has 2 extra enable switches that could be used as VC gates (enabled/disabled the same way B is above).
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DIY panels and PCBs for Buchla and Euro format: http://synthpanels.blogspot.de/
youtube channel: http://www.youtube.com/user/MrPalebluedot |
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diophantine
Super Deluxe Wiggler
Joined: 10 Jan 2011
Last Visit: 14 May 2013
Posts: 1427
Location: San Diego, CA
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| Posted: Wed May 23, 2012 1:31 pm Post subject: |
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You could always add a comparator + pot on the saw output to manually set pulse width.
(It may even be using a comparator to create the pulse output, which you could piggy-back on - I haven't looked at the schematic in a while.) |
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valis
aliens killed bigfoot
Joined: 30 Sep 2008
Last Visit: 22 May 2013
Posts: 1776
Location: eugene, oregon
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| Posted: Thu May 24, 2012 4:22 pm Post subject: |
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So just for the sake of consolidating my rants I'm reposting this. Over on the other Buchla panel thread we talked about the possibility of building a Serge Resonant EQ into a Buchla 295ish panel. We did notice some spots in the schematic that will allow you to tap out individual frequency bands from the Resonant EQ. Just a potential module to add to the list and for you all to consider.
If RSFC gets tired of all of these requests and projects, I suppose I could learn FPE and help out (and not be completely useless).
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Rod Serling Fan Club
aquatic hitchhiker
Joined: 14 Dec 2009
Last Visit: 22 May 2013
Posts: 3433
Location: Germany
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| Posted: Sun May 27, 2012 5:04 pm Post subject: |
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I think I am just about done on the 291 design for the next batch/run:
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DIY panels and PCBs for Buchla and Euro format: http://synthpanels.blogspot.de/
youtube channel: http://www.youtube.com/user/MrPalebluedot
Last edited by Rod Serling Fan Club on Sun May 27, 2012 5:42 pm; edited 1 time in total |
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valis
aliens killed bigfoot
Joined: 30 Sep 2008
Last Visit: 22 May 2013
Posts: 1776
Location: eugene, oregon
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| Posted: Sun May 27, 2012 5:30 pm Post subject: |
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| I want to go to there. |
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diophantine
Super Deluxe Wiggler
Joined: 10 Jan 2011
Last Visit: 14 May 2013
Posts: 1427
Location: San Diego, CA
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| Posted: Sun May 27, 2012 5:41 pm Post subject: |
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 Nice!
Working on my MU panel for the 291 this afternoon... |
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mono-poly
Le Cheff
Joined: 21 Nov 2008
Last Visit: 17 May 2013
Posts: 5330
Location: Rotterdam, Netherlands
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| Posted: Sun May 27, 2012 5:44 pm Post subject: |
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I'd rather see lp/bp/hp outputs on the 291
_________________
WTB Buchla 100 modules
i don't need the gear, the gear needs me
http://www.mono-poly.nl |
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