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fonik
Joined: Jun 07, 2006
Posts: 3950
Location: Germany
Audio files: 23
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 Posted: Sun Dec 04, 2011 9:22 am Post subject:
Professional manufactured PCB for JH Wasp clone - Interest?
Subject description: a project to raise some relief for haibles family |
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As you all might already know, Jürgen has been taken from us. Among other relatives he leaves two children behind, who will miss their father.
Jürgen once made a hand drawn schematic of a Wasp VCF clone. I later made a singlesided layout for press'n'peel blue - being one of my earliest layouts, it is not a nice layout. but ut has been built quite often, i think.
JH's clone is quite unique, i believe. This is what Jürgen had to say about it:
| Jürgen Haible wrote: | The whole combination of the separate parts has some unusual aspects that one might consider suboptimal design, but which I have chosen deliberately to have something different from my other modules:
No expo converter for the filter. Manual Cutoff is set by a logarithmic potentiometer, and the envelope is added to this exponential CV. This results in a certain interaction of Manual Cutoff and Envelope Depth settings.
The Distortion is located after the filter. Usually, you create rich harmonics with an overdrive, and then you filter these harmonics with a VCF, a phaser, or something similar. But it is also very interesting to have a VCF before a distortion unit, to pre-shape the waveform that feeds the distortion in a dynamic way. The avoid the very sharp sound of a pure distortion unit, a fixed filter ("speaker simulator") is hard-wired after the overdrive section.
The state variable filter normally doesn't self oscillate. However, if you plug in a long cable at it's output, it will. This is because the CMOS buffers have a rather large output impedance which will form an extra filter pole together with the cable's capacitance. This could easily be cured with an extra buffer stage, but I decided not to do it in my unit. |
My idea was to do a limited run of professional manufactured PCB's for his circuit, using LM13700 OTA's. He never did. I would spend 5.-EUR/PCB to his family.
The price for this PCB would depend on the number of pre-orders we get. The expenses must be covered + 5.-/EUR relief donation.
What do you think?
(If anybody had objections about this project, speak out).
UPDATE (6 DEC 11): the layout is almost done, however, keep in mind that i still have to order and build a prototype. and then we will have to wait and see when and what the family decides to do.
_________________
cheers,
matthias
____________
Big Boss at fonitronik
Tech Buddy at Random*Source
Last edited by fonik on Mon Aug 27, 2012 2:08 am; edited 7 times in total |
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inlifeindeath
Joined: Apr 02, 2010
Posts: 316
Location: Albuquerque, NM
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| Posted: Sun Dec 04, 2011 12:25 pm Post subject:
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i'm in. i built his design with your layout and i love it! such an odd filter. depending on the price i'd probably get 2.
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http://www.youtube.com/user/borisandfef |
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Level5
Joined: Feb 16, 2007
Posts: 29
Location: Germany
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| Posted: Sun Dec 04, 2011 12:44 pm Post subject:
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I'm in with 2 PCB's  |
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Mongo1
Joined: Aug 11, 2011
Posts: 411
Location: Raleigh NC
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| Posted: Sun Dec 04, 2011 1:37 pm Post subject:
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I'd be in for 1 or 2, depending on the cost. I don't have any wasp's in my nest yet.
Gary |
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diablojoy
Joined: Sep 07, 2008
Posts: 809
Location: melbourne australia
Audio files: 11
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| Posted: Sun Dec 04, 2011 4:28 pm Post subject:
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I think this is a very good thing you do mathias 
so count me in and i will take six.
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fluxmonkey
Joined: Jun 24, 2005
Posts: 708
Location: cleve
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| Posted: Sun Dec 04, 2011 5:54 pm Post subject:
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a fitting tribute. 2 for me plz.
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Danno Gee Ray
Joined: Sep 25, 2005
Posts: 1351
Location: Telford, PA USA
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| Posted: Sun Dec 04, 2011 6:40 pm Post subject:
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| I'd be in for 1 or 2. |
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ach_gott
Joined: Sep 09, 2008
Posts: 79
Location: Chicago
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| Posted: Sun Dec 04, 2011 10:22 pm Post subject:
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| I'm in for 2! |
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glacial23
Joined: Apr 30, 2008
Posts: 32
Location: Cleveland, OH
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Boerge
Joined: Sep 02, 2009
Posts: 82
Location: Germany
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| Posted: Mon Dec 05, 2011 2:24 am Post subject:
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Would take two also.
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...ich will doch nur löten... |
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a.b.o.z.
Joined: Feb 07, 2007
Posts: 351
Location: Zagreb, Croatia
Audio files: 7
G2 patch files: 4
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| Posted: Mon Dec 05, 2011 2:33 am Post subject:
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| I'm up for one board. |
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delta32
Joined: Nov 03, 2008
Posts: 6
Location: Oxford, UK
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| Posted: Mon Dec 05, 2011 3:36 am Post subject:
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| I will also take two. |
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LFLab
Joined: Dec 17, 2009
Posts: 497
Location: Rosmalen, Netherlands
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| Posted: Mon Dec 05, 2011 6:14 am Post subject:
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I am up for a couple.
Edited:
Have read up on the in memoriam thread on this forum, we have been in contact with his family and they welcome the support. I will definitely be up for several boards.
Last edited by LFLab on Mon Dec 05, 2011 6:33 am; edited 1 time in total |
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fonik
Joined: Jun 07, 2006
Posts: 3950
Location: Germany
Audio files: 23
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| Posted: Mon Dec 05, 2011 6:33 am Post subject:
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| JarnoBassplayer wrote: | I am up for a couple.
But have you/we been in contact with his family? Are they open to this sort of thing (since they were divorced or at least living separated)? |
This is in the works, and it will take it's time.
I am asking for interest only, yet.
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cheers,
matthias
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Big Boss at fonitronik
Tech Buddy at Random*Source |
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LFLab
Joined: Dec 17, 2009
Posts: 497
Location: Rosmalen, Netherlands
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| Posted: Mon Dec 05, 2011 6:34 am Post subject:
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| Hi Matthias, I have now read the replies in the other thread. |
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RF
Joined: Mar 23, 2007
Posts: 1502
Location: Northern Minnesota, USA
Audio files: 28
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| Posted: Mon Dec 05, 2011 6:56 am Post subject:
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2 here!
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keninverse
Joined: May 28, 2011
Posts: 15
Location: houston
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| Posted: Mon Dec 05, 2011 7:25 am Post subject:
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| Count me as interested. |
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raoulblues
Joined: Oct 31, 2007
Posts: 16
Location: paris france
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| Posted: Mon Dec 05, 2011 10:48 am Post subject:
pcbs for JH Wasp clone |
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I am for two
a65 years I know the fragile life |
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marvkaye
Joined: Mar 14, 2011
Posts: 225
Location: Fla
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| Posted: Mon Dec 05, 2011 11:14 am Post subject:
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Put me down for two as well. And count me in for some donation+ too. It's nice to know that this will benefit his family... he left us all way too soon.
<marv>
Last edited by marvkaye on Mon Dec 05, 2011 12:58 pm; edited 1 time in total |
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hv0190
Joined: Apr 18, 2011
Posts: 25
Location: Munich
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| Posted: Mon Dec 05, 2011 12:40 pm Post subject:
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| I'm in for two pcbs ... I'd also be willing to donate a bit more ... |
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emdot_ambient
Joined: Nov 22, 2009
Posts: 667
Location: Frederick, MD
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| Posted: Mon Dec 05, 2011 12:46 pm Post subject:
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Yep, two for me, but only if you put the fish on the PCB...I'm not Christian, but in honor of the man it must be done 
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Looking for a certain ratio since 1978 |
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LFLab
Joined: Dec 17, 2009
Posts: 497
Location: Rosmalen, Netherlands
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| Posted: Mon Dec 05, 2011 12:51 pm Post subject:
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| +1 |
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xpmtl
Joined: Aug 10, 2007
Posts: 162
Location: Brussels, Belgium
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| Posted: Mon Dec 05, 2011 1:35 pm Post subject:
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Count me in for one.
Will you add the cmos distortion thinggie on your board?
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fonik
Joined: Jun 07, 2006
Posts: 3950
Location: Germany
Audio files: 23
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| Posted: Mon Dec 05, 2011 3:12 pm Post subject:
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| xpmtl wrote: | Count me in for one.
Will you add the cmos distortion thinggie on your board? |
sure i will, and i will add a perf-board area around a LM358 for your discretion (output buffer!?).
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cheers,
matthias
____________
Big Boss at fonitronik
Tech Buddy at Random*Source |
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jumunius
Joined: Apr 19, 2010
Posts: 346
Location: San Francisco, CA
Audio files: 13
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| Posted: Mon Dec 05, 2011 8:55 pm Post subject:
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Great idea, 2 please!
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-Jim |
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