wanted: 91 or 92 ohm resistor networks
Scott Stevens
chenmel at earthlink.net
Wed Feb 16 20:22:07 CST 2005
On Wed, 16 Feb 2005 23:48:58 +0000 (GMT)
ard at p850ug1.demon.co.uk (Tony Duell) wrote:
> >
> > Hi,
> >
> > Does anyone have a handle on a source for
> > 91 or 92 ohm resistor networks? SIP or DIP,
> > with one common, quarter watt (each)?
> > They don't seem to be made anymore.
> > I checked the usual suspects: Digikey, Newark, etc.
> > IBM uses them in Bus & Tag terminators so they do
> > exist though maybe they are/were made solely by
> > and for IBM. I'd appreciate any ideas y'all
> > might have.
>
> Do you have space to stand up 8 resistors in place of the SIL pack and
>
> solder a piece of wire (or a single strip cut from stripboard across
> the top to common them? I've done that several times...
>
> Do you have space for 2 reisstor packs (maybe piggybacked DILs? 100
> ohms in parallel with 1k is pretty close to 91 ohms...
>
> -tony
>
I've even seen very small discrete resistors made into 'resistor
networks' in that fashion in production applications (limited
production). I've made 'network resistors' in this fashion in the past.
There are also little surface-mount-pad boards commercially available
that have a single SIP row of pins along one end, on which you could
mount chip resistors. I can't remember a brandname on those little
boards, but I think they're a common item you can find in DigiKey.
But the leaded-resistor solution is much more practical and probably
cheaper.
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