Amps
[Top] [All Lists]

[AMPS] HV on tube w/o filament voltage

To: <amps@contesting.com>
Subject: [AMPS] HV on tube w/o filament voltage
From: k1ta@earthlink.net (Bob Marston)
Date: Mon, 29 Mar 1999 22:27:52 -0800
At 09:38 AM 3/29/99 +0008, George T. Daughters wrote:
>
>
>Jon wrote...
>
>> Got a question:  How hard is it on a tube to have the HV applied to the 
>> plate w/o the filaments turned on.  

>>The reason I ask is that unknown to 
>> me, a relay must have stuck in my power supply control unit and when I 
>> turned my amp off, the voltage to the HV transformer was never turned 
>> off.  So I thought the amp had been completely shut down and it wasn't.  
>> I discovered this just prior to the contest on Friday when I went to turn 
>> everything on and noticed the HV supply cabinet was very warm.  Then I 
>> noticed the HV meter still read 6KV!  It was like this for several days.
>
>While the tubes may not be harmed, this sounds like a 
>potentially harmful condition for the humans who may be around!  Fix 
>it somehow, so that when you turn it off, it's OFF!


AMEN George


SWITCH TO SAFETY

73s

K1TA  Bob




--
FAQ on WWW:               http://www.contesting.com/ampfaq.html
Submissions:              amps@contesting.com
Administrative requests:  amps-REQUEST@contesting.com
Problems:                 owner-amps@contesting.com
Search:                   http://www.contesting.com/km9p/search.htm


<Prev in Thread] Current Thread [Next in Thread>