jimlux wrote:
> Gary Schafer wrote:
>
>> Polyphaser has used gas tubes in their coax protection devices from day one.
>>
>>
Seems as if I remember Polyphaser advertising they were solid state. The
ones I've had fail were all solid state with a tiny solid state device
inside. No spark gap and no discharge tube that I could find. They were
more like a bipolar diode and worked very well.
I've had several gas discharge devices apart and they sure looked different.
Roger (K8RI)
>> The reason for the series capacitor is to allow the gas tube to fire before
>> enough energy is passed into the circuit following the protector. If there
>> was no capacitor and the radio or cavity following the protector had a coil
>> in its circuit that provided a DC ground then the gas tube would not fire
>> until a large amount of energy passed into the coil and into the radio etc.
>>
>>
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