Would you buy a Jh Trapezoid VCA PCB? |
no - only interested in the original EMS circuit (this is not goint to happen - sorry) |
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2% |
[ 1 ] |
yes - if it emulates the behaviour of the EMS circuit, and doesn't need component selecting |
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97% |
[ 40 ] |
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Total Votes : 41 |
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Harry_W
Joined: Dec 01, 2011 Posts: 55 Location: Erlangen/Germany
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Posted: Mon Jan 23, 2012 10:29 am Post subject:
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emdot_ambient wrote: | I haven't seen anything lately on what's happening with JH's estate. I suspect it will take a while before they figure out what to do with his electronics stuff. |
The Haible family recently had to clear the apartment where Jurgen had been living for the last 6-7 months before he died. By agreement with the family, I helped a bit and took all of the unpopulated PCBs to my home (about several hundred pieces). Now I am going to take a kind of inventory, for legal reasons and for giving an overview to the family about Jurgen's "heritage".
Unfortunately, no sales of PCBs or any other modular stuff (there is still the PolyKorg PS-3200 clone left...) will take place until all legal questions are answered. This may take some time. I will see, but I cannot tell you right now if there are Trapezoid PCBs left or not. It's so much stuff...
Regards,
Harry |
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Davedatt
Joined: Jan 12, 2012 Posts: 7 Location: Portland OR.
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Posted: Tue Jan 24, 2012 1:28 am Post subject:
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Please let us know when they are available again. Jurgen did an amazing job of emulation without copying the VCS3. A true genius. BTW folks. The VCA is amazing sounding.
Dave |
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MR-808
Joined: Sep 30, 2010 Posts: 28 Location: Portland, OR
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Posted: Tue Jan 24, 2012 2:39 am Post subject:
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Davedatt wrote: | Little bit concerned about the soft off time, after about 3:00 o'clock I am in a manual time mode. Or at least I got tired of waiting for a re-trigger. |
I was able to adjust one of mine to turn on at about 9.75 (out of 10), but the trim was really sensitive around the sweet spot. The other one is about the same as yours, but I think it's due to not having a good 10-turn pot installed. I bet I'll be able to get them to go into manual mode @ 10 once I get some better tweak pots. Last edited by MR-808 on Tue Jan 24, 2012 2:57 am; edited 1 time in total |
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MR-808
Joined: Sep 30, 2010 Posts: 28 Location: Portland, OR
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vtl5c3
Joined: Sep 08, 2006 Posts: 425 Location: PDX
Audio files: 13
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Posted: Tue Jan 24, 2012 9:37 am Post subject:
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Looks really nice! |
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emdot_ambient
Joined: Nov 22, 2009 Posts: 667 Location: Frederick, MD
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Posted: Tue Jan 24, 2012 11:10 am Post subject:
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Yeah, it looks pretty awesome!
Do you have an electronic version of the front panel design of it you could share? It looks like a good jumping off point for the ones I'll eventually build (I've got 2 in my inventory). _________________ Looking for a certain ratio since 1978 |
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MR-808
Joined: Sep 30, 2010 Posts: 28 Location: Portland, OR
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emdot_ambient
Joined: Nov 22, 2009 Posts: 667 Location: Frederick, MD
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Posted: Wed Jan 25, 2012 2:13 pm Post subject:
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Cool, thanks! I'll end up messing around with it to suit my needs but this'll really help. Cheers! _________________ Looking for a certain ratio since 1978 |
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chrisp
Joined: Jan 14, 2010 Posts: 7 Location: Athens,Greece
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Posted: Wed May 07, 2014 10:19 pm Post subject:
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could someone help me with this project.....?
the trapezoid don't do anything.
the led is always on, and only the trapezoid pot working
have anyone the same symptoms?
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chrisp
Joined: Jan 14, 2010 Posts: 7 Location: Athens,Greece
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Posted: Fri Jun 13, 2014 1:52 am Post subject:
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OK finally I found the problem!!! The main problem it was a bad soldering at D5 but on the way i found also and on other parts the same problems.
now I 'm on trimming stage
Many thanks to Dave Brown for his help and the mathematical description !! |
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mrml
Joined: Feb 22, 2022 Posts: 1 Location: St. Paul
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Posted: Tue Feb 22, 2022 9:31 pm Post subject:
Panel for JH Trapezoid |
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Anybody still following this topic? I'm wondering if any of you who actually put this together and used it for a while have advice on what worked well on the front panel? There are so many options with the PCB, did some of them turn out to be more useful than others? |
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