SB-401 White Socket

[Rinkie & Ron Pollack]

The socket has 110vac applied when in transmit position.  I used it years
ago on RTTY to activate a cooling fan over the finals, and also to activate
a relay on a homebrew linear.

Ron K2RP

-----Original Message-----
From: Heathkit Owners and Collectors List
[mailto:HEATH at LISTSERV.TEMPE.GOV]On Behalf Of Charles Seitz
Sent: Saturday, December 04, 2004 11:00 AM
To: HEATH at LISTSERV.TEMPE.GOV
Subject: SB-401 White Socket


The SB-401 manual shows connections on pins 8 & 9 on this socket.  They are
connected to the AC power mains through a normally open set of contacts of
the Transmit/Receive relay.  There is reference to using this socket to
activate an external TR relay.  The transceive interconnect diagram shows
the socket to be unused.

Your equipment is ca 1970 vintage and things might have gone bad while it
was in storage.  Look the equipment over good and then step back when you
give it the smoke test.  Good luck!

                                         ---  CHAS  WA2DYA

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Products bought, sold or traded here is the responsibility of the
parties involved.  This list and the City of Tempe are not responsible
for losses or misrepresentations of any kind.  Buyer beware!

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