|[AMRadio] Globar brand thermistors|
Brett.gazdzinski at mci.com
Thu May 26 18:36:41 EDT 2005
Yes, the Scott slrm I have has a few of them in the AC line
I think, and that receiver starts up nice.
God help me if I had to replace one of them...
From: amradio-bounces at mailman.qth.net
[mailto:amradio-bounces at mailman.qth.net] On Behalf Of gwt
Sent: Thursday, May 26, 2005 5:09 PM
To: wa5bxo2005 at pctechref.com; Discussion of AM Radio
Subject: Re: [AMRadio] Globar brand thermistors
Yea, when Jim reminded me of those globars, I realized that would be
perfect to slow down the current surge on
my old radio with the 117Z6 rectifier, that lights up like a light bulb
when you first turn it on! That's gotta shorten the life of the tube,
In my mind's eye, I could see one of those globars, still in the card,
someplace in all my old TV krap that I never threw away. The question is
- can I find it?
So I headed out to my storage area, rumaged around, found my old tube
caddy, and found the globar, still in it's wrapping, just like I saw it
in my mind's eye. Way Kool!
John Coleman wrote:
> 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
>From: amradio-bounces at mailman.qth.net
>[mailto:amradio-bounces at mailman.qth.net] On Behalf Of Jim Wilhite
>Sent: Thursday, May 26, 2005 1:41 PM
>To: Discussion of AM Radio
>Subject: Re: [AMRadio] 117Z6GT question
>George: You might search around for some old "Globar" resistors. Install
>on the input line and they will absorb some of that inrush resulting in
>longer life for the tubes.
>I found a card of them (they were in little packets that one pulled off
>the pull tabs you bought at the beer joint) in little bags. They were used
>in TV sets and AC/DC radios. Check for a parts store that has been in
>business for a long time and find the guy with gray hair and an unsteady
>walk. He will know what you are talking about.
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