Re: Mystery ?Op Amp?

From: Watson A.Name - \ (NOSPAM_at_dslextreme.com)
Date: 09/06/04 

Date: Mon, 6 Sep 2004 07:39:46 -0700

"Norm Dresner" <ndrez@att.net> wrote in message
news:Gev_c.308714$OB3.187644@bgtnsc05-news.ops.worldnet.att.net...
> Going thru the Op Amp drawer today I came across an 8-lead TO-5 can
with a
> boldfaced, squarish, sans-serif S (probably the manufacturer's logo),
and
> the following markings
> 1. 7417 -- Quite possibly the date code
> 2. RS536 -- I assume the designation

My old Signetics catalog shows the 536 as a FET input opamp. It has 8
leads, in a TO-5-style can. Looking from top, tab up, the pin 8 is
under the tab, and counting from the left, pins 1 thru 7.

1. Offset Null
2. Inverting Input
3. Non-inverting Input
4. V-
5. Offset Null
6. Output
7. V+
8. NC

It has mediocre performance and GBW, combined with the special socket,
so it looks like a good candidate for disposal. Bend the leads out and
use it for an ornament. ;-)

> There is, of course, nothing else on the can. I have, of course, no
> recollection of when or where I might have purchased this device and
it's
> the only one like it I have. Google turns up nothing searching for
RS536 &
> Op Amp. Just searching for RS536 only returns "about 202" hits.
There's a
> listing under www.usbid.com which indicates that it is a known device
of
> some kind but there's no other information there. That is the *only*
> electronics-related hit in the list.
>
> I'd appreciate any and all suggestions as to its identity before I
toss it.
>
> TIA
> Norm
>