[sdiy] Need 1.87k +3500ppm TEMPCO's..

KATAYAMA pata at ieee.org
Thu Apr 12 17:05:34 CEST 2012


QRZ? ;-)

I'm sorry I have NO 1.87k TEMPCOs.
Anybody wants more?
Factory will make over 1000pcs.

And, I have 2k and 10K types (both 3300ppm/K) so use in parallel 
2//10=1.67, and a 500ohm wire-wound potentiometer in series to match.
How about it?

Taku

p.s.
MMS LAB changed URL.
http://www.mmslab.jp/


(2012/04/12 21:03), Andre Majorel wrote:
> On 2012-04-10 14:52 -0400, Jean-Pierre Desrochers wrote:
>
>> I'm working on some Arp Sub-Modules clones..
>> I need some 1.87k +3500ppm TEMPCO's
>> used in them.
>> Do you know of any sources to buy them?
>> I'd need a qty of 10.
>> I contacted http://www.precisionresistor.com/
>> but they'd sell them at $16.00 each !
>> Any clue for a good source?
>
> Takuya Katayama has tempcos, perhaps he has some 1.87 k. His
> web page was mmslab.org but that domain is gone. Where art thou,
> Katayama-san ?
>
>> From http://modularsynthesis.com/am/am.htm :
>
>    Digikey sells 3300PPM 5% 0805 SMD tempco resistors for about
>    $0.55 each.  I made my through-hole 1K87 tempco by soldering
>    together a 1K8 and a 68R 3300PPM SMT tempco resistors and
>    encapsulating them in epoxy.
>
> More sources : http://www.teaser.fr/~amajorel/sourcing/
>


-- 
=========================================
KATAYAMA, Takuya
Muse Music Synthesizer Laboratory, Japan
http://www.mmslab.jp/



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