Perhaps "Threshhold Sensitivity"? Similar to "Squelch"?
"Loop Gain" implies it could have been a manual Direction Finder, in common
use in the 1942 era.
----- Original Message -----
From: "K1TTT" <K1TTT@ARRL.NET>
To: "YCCC" <firstname.lastname@example.org>; "reflector cq-contest"
<CQ-Contest@Contesting.COM>; <email@example.com>; "reflector -tower"
Sent: Thursday, July 24, 2008 9:09 PM
Subject: [TowerTalk] 1942 aircraft radio question
> Got this from a local kid who has visited here... anyone have an idea of
> what it is off of?
> I have a question for you. While walking around the site of the 1942
> plane crash near Garnet Peak on the south end of town, someone picked up
> an oval shaped tag, put it in some solvent, and found that it read
> "THRES SENS" on one side and "LOOP GAIN" on the other. I would assume
> this would be off some part of the plane's radio. Do you have any idea
> what "THRES SENS" means or can you confirm it could be off the radio?
> from the web page: http://home.att.net/~jbaugher/1942_1.html
> I can give you the usaaf serial numbers:
> 42-6455/6504 Douglas C-53-DO
> c/n 4907/4956
> 6463 (c/n 4915) crashed Oct 10, 1942 east of Garnet Peak, Peru, MA.
> And it was big news at the time:
> David Robbins K1TTT
> e-mail: mailto:firstname.lastname@example.org
> web: http://www.k1ttt.net
> AR-Cluster node: 145.69MHz or telnet://dxc.k1ttt.net
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