Amps
[Top] [All Lists]

Re: [Amps] filament voltage and current

To: <kg7hf@comcast.net>, <amps@contesting.com>
Subject: Re: [Amps] filament voltage and current
From: "jeremy-ca" <km1h@jeremy.mv.com>
Date: Fri, 11 Apr 2008 16:29:17 -0400
List-post: <amps@contesting.com">mailto:amps@contesting.com>
When the tube is cathode driven the limit of the input signal voltage cant 
exceed the specified limit.

Not a worry when excessive drive isnt applied.

Carl
KM1H



----- Original Message ----- 
From: <kg7hf@comcast.net>
To: <amps@contesting.com>
Sent: Friday, April 11, 2008 1:08 PM
Subject: [Amps] filament voltage and current


> Lots of good topics today.
>
> Speaking of heater voltage.    I am working on my first tube based 
> amplifier.
>
> Is there any reason that an adjustable voltage regulator couldn't be used 
> to "dial in" the heater voltage?    I'm specifically thinking about his 
> for a single 3cx800a7  which requires 13.5 +- 0.6v @  1.5A.      One thing 
> that bothers me in the 3cx800's data sheet though is the cathode-heater 
> potential (it lists +-150v).    I don't know what that parameter is and I 
> don't see it listed in other datasheets.
>
> Thanks,
> Paul, kg7hf
> _______________________________________________
> Amps mailing list
> Amps@contesting.com
> http://lists.contesting.com/mailman/listinfo/amps 

_______________________________________________
Amps mailing list
Amps@contesting.com
http://lists.contesting.com/mailman/listinfo/amps

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