[Milsurplus] TCK-4

[WA5CAB at cs.com]

People always seem to equate motor-generator sets with big, heavy and 
noisy.  In the smaller sizes (for the TCS or TBX for example) this tends to be 
trues compared to AC rectifier supplies because the M-G sets are usually made 
up of separate motors and generators.  But comparing the several different 
models made for the TCK series, they are all slightly (5 to 55 pounds) 
lighter and considerably smaller than the AC rectifier supply for the same series. 
 The 110/220 VAC rectifier supply was the same physical size as the 
transmitters except not quite as deep, and weighed a hefty 375 pounds.  Counting 
revisions, there were six different M-G sets, two each rated for a nominal 115 
VDC, 230 VDC and 220/440 VAC 3-phase.

Also, at least in places that I have lived or worked (which includes about 
three-forths of the states and half of the territories), I haven't seen any 
220 VAC systems since the Korean War.  The nominal or "official" standard 
changed briefly to 117/234 and then to 120/240 for single phase residential 
systems well over half a century ago.  The two standards on pre WW-II U.S. 
naval vessels larger than small boats, landing craft, tug boats, etc.were 115 
VDC on smaller vessels and 230 VDC on larger ones (generally 8" guns and 
larger as best I can dig up).  

Robert Downs - Houston
wa5cab dot com (Web Store)
MVPA 9480

> 
> >I hope you can find the original power supply to go with it. The MG sets 
> >were usually 120 or 220 volt DC drive, so supplying that today is not a 
> >problem.
> 
> Right. 4 big diodes, a 220 VAC line, and maybe a big bunch of filter caps. 
> I have all of that. 
> Finding an original MG set is another matter...
> 
> Besides, as I remember it, those things are big and weigh a lot. Like near 
> 300 lbs.
> 
> 
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