[BC] Re: Simple question

[Chuck Lakaytis]

In another eon when I was maintaining 8 50 KW ISB transmitters, we had a 
special tube warming box set up to keep the spares hot.  Those arc backs on 
the Collins AN/FRT 51's sounded  like cannon shots in the transmitter hall.

Chuck Lakaytis
Director of Engineering
Alaska Public Broadcasting, Inc.
135 Cordova Street
Anchorage, AK 99501
907 277 6300
907 277 6359 FAX
907 301 4339 Cell
----- Original Message ----- 
From: "Rick Brashear" <rickbras at airmail.net>
To: "'Broadcasters' Mailing List'" <broadcast at radiolists.net>
Sent: Tuesday, April 03, 2007 6:31 AM
Subject: RE: [BC] Re: Simple question


> In a broadcast situation I think that is a great idea.  Of course, using 
> it
> as I will in an Amateur Radio environment it's not necessary.
> Rick
>
>
> I recall those years back when I had to 'mother' 8008's, 875's etc etc.
> In those days stations signed off at Midnight and back on at 6 AM...
> The DJ usually got there about 5 minutes prior to air-time and did
> not understand the nature of these beasts when they were cold...
> besides...its was not - his - job to go to the transmitter to reset
> the breaker!
>
> There had to be a better way  -
>
> That turned out to be a simple mod to the transmitter that kept
> the filaments of the Merc-Vapors on (in some cases at reduced
> voltage).  Thus the fussy tubes stayed warm and leaped to live
> upon Plate-On without tripping the breaker.
>
> Clay Freinwald- Seattle
>
>
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