Xref: utzoo sci.electronics:14661 rec.ham-radio:24891
Path: utzoo!attcan!uunet!aplcen!uakari.primate.wisc.edu!zaphod.mps.ohio-state.edu!swrinde!ucsd!brian
From: brian@ucsd.Edu (Brian Kantor)
Newsgroups: sci.electronics,rec.ham-radio
Subject: Re: Mystery SK9426 chip info needed
Keywords: SK9426
Message-ID: <19645@ucsd.Edu>
Date: 27 Sep 90 06:02:03 GMT
References: <3903@radio.oakhill.UUCP>
Followup-To: sci.electronics
Organization: The Avant-Garde of the Now, Ltd.
Lines: 27

In article <3903@radio.oakhill.UUCP> charlie@oakhill.UUCP (Charlie Thompson) writes:
>Okay here's one for all you audio repair hackers out there.
>I inherited an old solid-state stereo receiver the other day
>which contains some dead audio preamp chips labeled SK9426.
>I can't find them in the IC Master so I assume they are somewhat
>rare/obsolete.  Anybody ever heard of such a chip?  Mucho thanks.

I rarely answer questions that start as illiterately as 'Okay' but....

The reason you didn't find the SK9426 in the IC master is that it's not
an IC.  It's a matched dual PNP transistor with common emitter leads,
intended for use in differential-amplifier circuits.

An NTE-43 is one substitute; check with your local tv repair parts shop
to see if they have some.

A note of caution: the SK series is/was RCA's "universal replacement"
line of parts, just as the NTE parts are.  Those parts were rarely used
in new production (unless it's a homebrew) so you have to consider:

1) the unit you've got has probably been fried and worked on before

2) you're trying to find a substitute for a substitute, so there's no
guarantee that the third-hand part is going to work at all well.

Enjoy.
	- Brian