[sdiy] Low Pass Gate is soooOOOOooo sweet

[harry]

VTL5C4

@ 10mA / @ 40mA

On (dark adapt) 125 / 75
On (light adapt) 200 / -
Off (10s) 400Kohm
Ascent 6ms
Decay (to 100K) 1500mS
Max voltage 40V

VTL5C4/2
On (dark adapt) 150 / 100
On (light adapt) 500 / -
Off (10s) 400Kohm
Ascent 6ms
Decay (to 100K) 1500mS
Max Voltage 30V

H^) harry


"Oren B. Leavitt" wrote:

> Thanks Harry,
>
> I was wondering about that, too..
> BTW what's the spec on the 5C4 / 5C4/2 ?
> I built a 4 stage phaser some years back around 5C4s that is deliciously smooth
> and 'wet' sounding.
> As you speed up the modulation rate the sweep range becomes shallower and
> asymmetric in shape which adds to the charm.
> I'm interested in trying the 5C4s in the LP Gate circuit, as I have lots of them.
>
> Thanks again
> Oren
>
> harry wrote:
>
> > Fortunatly... ONE of us has the presence of mind to SAVE the
> > old Vactec catalog
> >
> > VTL2C3 is
> >
> > 1K typ (dark adapted)
> > 2K max (light adapted)
> > 10e7 (after 10 s off)
> > Ascent 2.5ms
> > Decay 35ms (to 100K)
> > Cell voltage 300 (max)
> >
> > good stability, fast response, low voltage coefficient
> >
> > BTW the VTL5C3 has the same specs... looks like the right cross
> > The dual element version has twice the on resistance, 4ms ascent
> > and 50ms decay.
> >
> > You may kiss me now....  ;^P
> >
> > H^) harry
> >
> > jhaible wrote:
> >
> > > > >     I believe thats a mistake. I think the correct Vactrol is the
> > > VTL5C3/2.
> > > > > It was mentioned earlier how this schematic is a little faulty so maybe
> > > this
> > > > > is the case.
> > > > >
> > > >
> > > > No, (some) other buchla schems call for 2C3 too, maybe it's obsolete.
> > >
> > > I used a 5C3/2 and I'm not content with the result. Too slow, for my taste.
> > > I always thought I'm "just not a Buchla guy" and better kept my mouth shut.
> > > But if 5C3/2 is wrong, there is still hope ...
> > >
> > > JH.
> >
> > --
> > Jihad Terrorism Conspiracy New World Order
> > Revolution Black Helicopters Freedom of
> > Speech First Amendment Rights: Carnivore Bait
> > go ahead and READ my e-mail I have nothing to
> > hide... how about YOU ???
>
> --
> Oren Leavitt
> oleavitt at ix.netcom.com

--
Jihad Terrorism Conspiracy New World Order
Revolution Black Helicopters Freedom of
Speech First Amendment Rights: Carnivore Bait
go ahead and READ my e-mail I have nothing to
hide... how about YOU ???