[sdiy] Tempcos a NoGo

[Tom Arnold]

On Thu, Jun 07, 2007 at 07:03:03PM -0700, dj hohum wrote:
> Are they a direct replacement, other than mechanical concerns, for the
> Q81? If so, am I simply missing something obvious? Wouldn't it be
> trivial to make a tiny carrier out of a piece of standard copper clad
> perfboard? I'm talking about the kind that has a number of holes
> connected together so you can mimic solderless breadboard layouts.
> Take a small strip with fourholes connected together, xacto away the
> middle trace, solder the tempco accross the gap, use the outside holes
> to mount leads.

Well, they arnt "direct" replacement.  The tempco is 3300PPM and they only
seem to be stocked in 1k, but even so, 3300PPM is "darn close" ( whats
ideal, 3350?  I forget. ) and the things are dirt cheap.

Took me a while but I found the part numbers in an old order :
P1.0KCDTR-ND = Full reel of 5000, $730  15cents each...
P1.0KCDCT-ND = Cut Tape, 10 for $5.52 with substantial quantity breaks.

> Can you be specific on fairly inexpensive?

A group buy of a few hundred gets the price into the $2-$3 range.  Last 1k
KRLs I got were $1.80 and the 2k's were $2.50 or so.  I dont remember the
exact quantity but I think we got 300 1k's and 100 2k's, but dont hold me to
that.

-- 
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 - Tom Arnold           -  "...is it a virus, a drug, or a religion?"  
 - Sysabend Caretaker   -    Juanita Shrugs. "What's the difference?"
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