[Milsurplus] Re: ATB "LF" TU

[Hue Miller]

I am wondering how often this 2.3 - 4.2 TU is encountered.
Does your ATB have one?
I encountered an ATB the other night (not in a dark alley ) with the
LH position occupied by this TU. I was quite surprised to see this.
This TU could probably be made to tune down to 1.8 MHz thus giving
the transmitter 3 band capability, 160 80 40, retaining the other TU
for the 2 higher bands. Or, it's kind of nice having the LF TU just kept
as is for 80 and switching to the other TU for 40.
 
The downside of finding this is, i immediately thought, whoa, i better
keep this thing after all. 
Another downside is, it looks like the previous owner removed the
long antenna relay, altho i received that part also.
 
I suppose the reason this TU is less-common is that, per manual, it
seems maybe to have been an accessory type unit, carried in its own
carry case. Apparently many, most? proceeded back to the metal 
smelter.
Interesting also, to me, that there was no real LF TU for this transmitter,
altho it is a more powerful transmitter than the (traditional) Command 
Sets - and from the manual, the ATB was clearly designed as not limited
to Command Radio use, altho it does seem to have been quite rarely 
deployed. The only for-certain use i have seen is as the HF Command
Radio in the PBY seaplane - a photo exists. Of Navy air radio veterans
i have spoken to, around 5 or so, none of recognized the name or
description.
G&G had an ad that listed both ARB and ATB for something like $89.
I do not think they had many takers, if any!  -Hue Miller
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