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The Jerkster -
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L´Andratté



Joined: Sep 23, 2012
Posts: 60
Location: Hamburg, Germany
Audio files: 5

PostPosted: Sun May 19, 2013 4:01 pm    Post subject: The Jerkster -
Subject description: questions and thoughts
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Hey!

I just build the Jerkster and it is just as good as I thought it would be!
The first test run went for hours

http://home.comcast.net/~ijfritz/ch_cir2.htm

I just did it on stripboard from scratch in about 12h in a row including panel-drilling, and it worked first try and I´m a bit euphoric about it now.

Of course the module is not a beauty, and I want to do another one with full vc-parameters (and since mine has a real hot output also output-attenuators).

Now my questions:
- Could the hot output be due to different OTA offset-stuff?
- Modulation should be linear, right?
- If so, the simple cv to PNP(grounded base) to OTA approach should work?
- Is switching timing capacitors any use?
- Finally, is there any reason why one should not add more integrators?
- I found the modulation to be very subtle (but I am not), so maybe lower the 220k?

Maybe someone can answer one or the other question or I will try to find out and report but first I will do some VCA mass production for a live gig nxt week!



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Blue Hell
Site Admin


Joined: Apr 03, 2004
Posts: 20704
Location: The Netherlands, Enschede
Audio files: 156
G2 patch files: 318

PostPosted: Sun May 19, 2013 4:22 pm    Post subject: Reply with quote  Mark this post and the followings unread

So many questions ... and I just can tell you that you have some very nice beeps there Laughing

Ah .. an Ian Fritz thingie, nice!

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L´Andratté



Joined: Sep 23, 2012
Posts: 60
Location: Hamburg, Germany
Audio files: 5

PostPosted: Mon May 20, 2013 5:51 pm    Post subject: Reply with quote  Mark this post and the followings unread

nice!


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elmegil



Joined: Mar 20, 2012
Posts: 1524
Location: Chicago
Audio files: 14

PostPosted: Mon May 20, 2013 8:47 pm    Post subject: Reply with quote  Mark this post and the followings unread

nice...
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