[sdiy] Tempco Resistors...

Ray Wilson raywilson at comcast.net
Fri May 27 14:57:18 CEST 2005


I am selling 2K PT146 from Precision Resistor if anyone is interested.

http://www.musicfromouterspace.com/catalog.php?page=CATALOG

Ray


----- Original Message ----- 
From: <jays at aracnet.com>
To: <synth-diy at dropmix.xs4all.nl>
Sent: Thursday, May 26, 2005 5:46 PM
Subject: Re: [sdiy] Tempco Resistors...


> Hello All!
>
> FYI...
>
> I grabbed the data sheet for the Panasonic SMT parts that digikey sells a 
> while back and gave it a read. One thing that they mentioned is that these 
> parts are delicate. The outside coating forms part of the 'thermal 
> operating properties'. If it gets scratched or damaged in any way the 
> resistor will not operate properly. They talked about how tweezers could 
> scratch the parts and they would not work right. So be careful.
>
> Jay S.
>
> Metrophage wrote:
>
>> I have been thinking of putting together an order with KRL Bantry for
>> some 3300ppm 1k, but I'll need to talk with them, as its been years
>> since I've bought any. They hand make tempcos to any resistance, any
>> temperature coefficient, lots of tolerances. If I am not mistaken, they
>> were like $3-$4 each @100pcs. Not the cheapest option going, but
>> probably the best. Most others are offering 3000 or 3500 ppm, and the
>> SMT versions are more difficult when it comes to thermal contact, IMO.
>> The KRL tempcos are probably at least as good as the legendary Q81.
>>
>> Maybe group purchase time?
>>
>> CJ
> 




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