[Amps] Grid fuses (was: Life and gain of 3-500Z)

[R L Measures]

On Jul 20, 2006, at 3:40 PM, Ian White GM3SEK wrote:

> Joe Subich, W4TV wrote:
>>
>> Rich writes:
>>
>>>> On the other hand, if most damage to the grid occurs very
>>>> quickly, then one would probably want fast-acting, electronic
>>> protection.
>>>
>>>
>>> ... provided that the transistor used to interrupt grid-current
>>> was up to the task.
>>
>> There you do again ... there is no need to directly interrupt the
>> grid current with a transistor.
>
> I don't know of any electronic protection circuit that actually works
> that way. Despite requests in the past, Rich has never shown an  
> example
> of what he claims.

An 8877 cathode can emit 50A.  If 50A is flowing into the grid, how  
does your electronic circuitry stop it?...
>

R L MEASURES, AG6K. 805-386-3734
r at somis.org