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

[R L Measures]

On Jul 20, 2006, at 3:08 AM, Tom W8JI wrote:

>> In a message dated 7/19/2006 3:17:48 PM Eastern Daylight
>> Time,
>> dezrat at copper.net writes:
>>
>> That's  news to me.
>>
>> In my experience, a fuse is one of the most reliable of
>> all electronic
>> components, especially when compared to the active devices
>> in an
>> electronic protection circuit.
>>
>> To each his own.
>>
>> Bill,  W6WRT
>
> Bill,
>
> What is the typical reliable opening current and opening
> TIME of a fuse compared to the safe holding current? Have
> you ever looked at it?
>
> What is the reliable opening point (where it goes
> near-infinite resistance) of a 1/4 watt resistor compared to
> safe working current? Have you ever looked at that?

I eyeballed a 3-500Z grid, an 8877 grid and an el cheapo 0.25w carbon- 
film resistor, and I determined that the resistor would probably blow  
first.
>
> ...

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