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

[Ian White GM3SEK]

R L Measures wrote:
>
>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?...

We're discussing the same question twice over.

I have responded in the other thread of the discussion, so please let's 
close off this one.


-- 
73 from Ian GM3SEK
http://www.ifwtech.co.uk/g3sek