[Premium-Rx] 8293 counter chip

[Danny Higgins]

Richard,

Racal used the 8290A presettable decade counter in the early RA1772s, and
one of the mods was to replace them with a 74LS196 because they were much
more reliable at high temperatures.  Perhaps you might find a pin compatible
74LSxxx that matches the 8293.  I have some old 8290As but no 8293s.

73

Danny, G3XVR

-----Original Message-----
From: premium-rx-bounces at mailman.qth.net
[mailto:premium-rx-bounces at mailman.qth.net] On Behalf Of
richardreich at aol.com
Sent: 25 February 2013 09:13
To: premium-rx at mailman.qth.net
Subject: [Premium-Rx] 8293 counter chip


Hello all.

Maybe a little off topic, but the life of a premium receiver (or two)
depends on it...

I have been trying to find data for a 8293 binary counter, and also a source
of the device. Its quite common in older premium receivers (in particular
WJ).

Managed to find the datasheets after a major and lengthy trawl using Google
- but no obvious source for the part.

Does anyone know a source accessible from the UK  - or a readily available
equivalent?

Thanks in advance for your help.


Richard
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