>
>>
>> I recommended removing the CE shorted transistor and replacing it with a
>> fuse resistor. Shorted transistors can not limit current.
>>
>> end
>>
>> - Rich..., 805.386.3734, www.vcnet.com/measures.
>
>The problems with that are:
>
>1.) You recommended it as a blanket cure in QST
>
A fuse is a blanket cure for CE shorted transistors.
>2.) A fuse resistor is a very slow acting device, even a regular fuse
>is unreliable
>
CE shorted transistors never unshort. If anything, fuses open too soon.
>3.) If the grid resistor opens, the tube can go into current run away
>under some conditions
>
With no current path to the neg. HV return?
>
cheers, Tom
- Rich..., 805.386.3734, www.vcnet.com/measures.
end
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