[Amps] Tetrodes

[R@contesting.com]

On Jul 11, 2005, at 11:21 AM, Ian White GM3SEK wrote:

> R wrote:
>
>>
>> I  have never had a case where the 250v-rated 3AG fuse in the primary
>> of the screen supply xfmr failed to open when needed to protect the
>> screen
>
> And the mains fuse protected the screen from what..

... exceeding the 275w max diss. rating during a glitch.

> . and how?

... by stopping the flow of current into the screen PS.

- note - Reverse screen-I is handled by a screen-cathode bleeder R 
which draws c. 30mA.
>
>
> -- 
> 73 from Ian G/GM3SEK
> http://www.ifwtech.co.uk/g3sek
>

Rich Measures, 805.386.3734, AG6K, www.somis.org