[Hallicrafters] HT-37 antenna relay

[Waldo Magnuson]

I am in the process of acquiring a HT-37 which will be used with a 
SX-111 receiver.  I notice that Dowkey antenna relays come in 6 V, !2 
V, 24 V, and 115 Vac.  Can any voltage be used?  Normally is 115 Vac 
used (because of its availability)?  I suspect the HT-32 and HT-37 use 
the same pin-outs (2 & 3).  Your comments, thoughts, and suggestions 
are appreciated.
Skip Magnuson