[sdiy] Spring reverb Drive circuit

[elmacaco]

Thanks for all the responses guys.

I'm now using this schem for the input driver from the same website:

http://www.accutronicsreverb.com/drive3.pdf

for the resistor to ground on the negative pin of the op amp, it says

Nominal V
-----------------  =  R
.028

So wtf is nominal V?  12V?

that gives me 428.6 approx.  I assume Ohm, am I doing this right?

I'm still going to use the output from the first schem.

Ed
Thanks!


----- Original Message -----
From: "Harry Bissell Jr" <harrybissell at prodigy.net>
To: "Raymond Wilson" <rwilson at fhmsi.com>; "elmacaco" <elmacaco at nyc.rr.com>;
<synth-diy at dropmix.xs4all.nl>
Sent: Monday, October 06, 2003 11:26 AM
Subject: RE: [sdiy] Spring reverb Drive circuit


> Ditto:  now we're up to 4 cents
>
> I have (in fact) used exactly this circuit
> (last month) in an integrator drive circuit...
> on +/- 12VDC.
>
> The maximum output voltage may be more limited than
> the opamp alone... I got about +/- 8V on the 12V
> supply (different opamp)
>
> H^) harry
>
>
>
> --- Raymond Wilson <rwilson at fhmsi.com> wrote:
> > Looks pretty straightforward. My two cents... it
> > should work fine on + and - 12V.
> >
> > Ray
> >
> > -----Original Message-----
> > From: elmacaco [mailto:elmacaco at nyc.rr.com]
> > Sent: Sunday, October 05, 2003 7:38 PM
> > To: synth-diy at dropmix.xs4all.nl
> > Subject: [sdiy] Spring reverb Drive circuit
> >
> >
> > Hey all,
> >
> > I just pulled a spring reverb out of an old mixer I
> > got cheap off of ebay.
> > It's an Accutronics  16" dual spring (it's going
> > into my EFM SBM modular :)
> >
> > It's an 4BB2D1B,
> >
> > I have the schematic from the accutronics website
> > but it runs off of +/- 15,
> > my PSU is +/-12V
> >
> > Can someone have a look at this and see if I can run
> > it off of 12V, or if I
> > should change something?  Thanks
> > Schematic:
> >
> > http://www.accutronicsreverb.com/drive1.pdf
> >
> > Ed
> >
> >
> > ---
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> >
>


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