[AMPS] Filament Inrush Current Limiting

[measures]

>
>
>-----Original Message-----
>From: RCM <robrk@pgh.net>
>To: Phil Clements <philk5pc@tyler.net>
>Cc: amps <amps@contesting.com>
>Date: 25 April 2000 23:28
>Subject: Re: [AMPS] Filament Inrush Current Limiting
>
>
>>
>>What about turning down the voltage, like to half for moderate standby
>>times (dinner). I remember
>>reading something in some broadcast book about the standby transmitter
>>filaments being switched to
>>half or less voltage as in semi-hot standby..
>
>
>I have a vague memory of reading something that suggested that running an
>oxide cathode much cooler than intended can lead to 'poisoning' or somesuch.
>Anyone fill in on this one?
>
Not enough heater potential causes the oxide coating to flake off the 
cathode. 

cheers, Steve

-  Rich..., 805.386.3734, www.vcnet.com/measures.  
end


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