[sdiy] Thermosistor for XR-2206 Thomas Henry VCO

jure zitnik kokoon at gmail.com
Fri Sep 21 21:37:31 CEST 2007


EU: i just ordered a few 1k from oakley sound (UK-based), 5UKP each.

cheers,
jure

On 9/21/07, gino wong <wonggster at gmail.com> wrote:
> Precision resistor has 1k 3500 pt146 tempcos on sale for $3.10 each at
> their site. Other packages as well.
>
> Bridechamber has them too for few cents more and a LOT less postage
>
> gw
>
>
>
> On 9/21/07, Derek Holzer <derek at umatic.nl> wrote:
> > Here, you mean:
> >
> > http://www.magsmoke.com/tempco-resistors.asp
> >
> > The package might be small enough that the customs people won't bother
> > with it. Otherwise, it's a half-day trip to the Berlin customs house and
> > back for me....
> >
> > d.
> >
> > Christian From wrote:
> > > 2K +3500ppm/C tempco's can be had from magicsmoke.com for...not a lot
> > > of money - can't remember how much...
> > >
> > > Christian
> > >
> > > On 9/21/07, Matthias.Herrmann at jeppesen.com
> > > <Matthias.Herrmann at jeppesen.com> wrote:
> > >> synth-diy-bounces at dropmix.xs4all.nl wrote on 09/21/2007 02:33:47 PM:
> > >>> The board for the Thomas Henry XR-2206 VCO that Tom Bugs made calls for
> > >>> a 2K +3500ppm/C thermosistor. Where do people (in EU?) source these
> > >>> things? How bad would the drift be if I used a normal 2K resistor?
> > >>>
> > >>> best,
> > >>> d.
> > >> since the 2k is placed in the feedbackpath of a inverting amplifier it
> > >> should should be possible to use 1k and divide the value of the input
> > >> resistor (100k) by 2 (=49.9k) to keep the ratio...
> > >>
> > >> cheers,
> > >> matthias
> > >> ___
> > >> www.modular.fonik.de
> > >>
> > >>> --
> > >>> derek holzer ::: http://www.umatic.nl :::
> > >> http://blog.myspace.com/macumbista
> > >>> ---Oblique Strategy # 147:
> > >>> "State the problem as clearly as possible"
> > >>> _______________________________________________
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> >
> > --
> > derek holzer ::: http://www.umatic.nl ::: http://blog.myspace.com/macumbista
> > ---Oblique Strategy # 148:
> > "State the problem in words as clearly as possible"
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