[Hammarlund] PTT for the HX-50

[Robert Nickels]

Duane, they may call it the Drifty 50 but just for the archives, I 
should report that the VOX circuit isn't as nifty as I thought 
yesterday.  Al's schematic is marked "Production Run 2" which evidently 
includes some changes in the VOX relay circuit as my HX-50 s/n 518 is 
wired differently.  My previous comments about wiring a PTT switch to 
terminal 2 on the rear panel is correct in both cases, but the version I 
have requires two separate wires to the switch, which precludes the use 
of a standard 3 wire mic plug.  Also there is 120 volts DC on the PTT 
circuit, not what I want to hold in my hand - so my advice to anyone 
playing with an HX-50 is to be aware of these differences to avoid a 
shock hazard.

73 Bob W9RAN