[sdiy] Re: [AH] simple ASM-1 questions

Magnus Danielson cfmd at swipnet.se
Sun Mar 4 04:18:13 CET 2001


From: Nicholas Pelkey <njpguy at icqmail.com>
Subject: [sdiy] Re: [AH] simple ASM-1 questions
Date: 27 Feb 2001 18:12:10 -0800

Dear Nicholas,

> > Up! It should point up! Up means away from the trimpot.
> 
> thanks.... the .pdf and Gene's caution in the literature where a tad misleading.
> 
> > > Next question.  Somehow after ordering from the parts list I ended up with a few 33 radial ceramic caps?  Any hints on why?  Are these the ones that are supposed to piggyback the 560k in the VCA?
> > 
> > VCF?
> 
> No VCA.... 
> 
> "This module is pretty easy.  Make sure to use normal signal diodes like the 1N4148 or 1N914.  The op-amp can be anythng dual - TL082, LM358, 1458, etc.  There may be some hi- frequency oscillation on the VCA output - if there is, add about a 30pf cap across the (-) input and output amp, across the 560K resistor.  You can solder this on the back side if you want."
> 
> from assembly notes 1.2 by Gene Stopp
> 
> So do I use the 33 radial ceramic for that?

No bloody idea!

If you don't see any places missing a component, then it is a mystery!

Cheers,
Magnus




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