[Amps] Vacuum Relay Question

[Jim]

And specifically lightning causing issues.
So there's that...

Did you see the smiley face at the end of my statement?  Perhaps not....


Thanks
73
Jim W7RY

On 7/28/2021 1:31 AM, Aleksandar Petkovic wrote:
> The discussion pertained to relay connections in the matching network 
> for a HF vertical antenna.
>
> 73, Alek, VK6APK
>
> On 28/07/2021 7:07 am, Jim wrote:
>> But there is no lightning inside of an amplifier... Hopefully. :)
>>
>>
>> Thanks
>> 73
>> Jim W7RY
>>
>> On 7/26/2021 12:59 PM, Jim Brown wrote:
>>> I don't understand this concern. Vacuum relays have been widely used 
>>> for decades for antenna switching in power amps, where the 
>>> impedance, and thus voltage and current, are the same as for this 
>>> application.
>>>
>>> What am I missing?
>>>
>>> 73, Jim K9YC
>>>
>>> On 7/26/2021 3:08 AM, Rob Atkinson wrote:
>>>> I would not use a vacuum relay in a matching network for a 1/4 w.
>>>> antenna.   That's a low v. high current setup calling for open frame
>>>> contactors or at least large open relays.  Perhaps this information
>>>> will render your question moot.
>>>
>>>
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