Cold resistances varied some. Hallicrafters used them in TV sets as well as
AC/DC sets, as did other manufacturers Cold resistance varied from just
over 100 ohms to about 85, if memory serves correct.
I found several at a parts store where I lived before and a friend of mine
wanted several. I don't think he wanted as many as I sent, but he is
supplied for life.
Those of you who have old stores in their areas might check. Perfect for
what John mentioned and for the AC sets with no transformer such as the
Scott SLRM.
73 Jim
W5JO
----- Original Message -----
From: "John Coleman" <[EMAIL PROTECTED]>
To: "'Discussion of AM Radio'" <amradio@mailman.qth.net>
Sent: Thursday, May 26, 2005 3:20 PM
Subject: [AMRadio] Globar brand thermistors
Those things are really pretty cool. I think they are around 100
ohms cold and about 1 ohm hot at up to 3 amps. They are great for the
primary of filament XFMRs for Xmitting tubes. I used to use them all the
time. We kept them in stock for the degaussing circuits in TV repair but
I
haven't seen them for a long time.
John Coleman, WA5BXO
