[Hammarlund] SP600 Antenna Input

Wes Bolin k5apl at yahoo.com
Mon Mar 4 17:03:30 EST 2013


I am restoring my SP600 JX26 and just pulled the RF Deck for re-capping.  J1, the antenna input jack, is a N-F connector (not twinax).  Upon
inspection of the RF compartment, both leads from Contact 5 and Contact 6 are going to the center pin of the RF connector!  Looks to me like
all the turret input coils would be shorted since the "usual" mod would be to have one lead to center pin, and the other to ground.
Even more puzzling is that the radio played very well before I started the restoration.
Any comments or ideas?
FYI this radio had only one defective BBOD so far:  A .01 uF that is open.  All other capacitors that I have replaced to date have between 5 and
200 Meg ohms of resistance measured by my 11 Meg input V.T.V.M.  Now only have 20 to go!
Thanks,
Wes


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