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[AMPS] A good suggestion!

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Subject: [AMPS] A good suggestion!
From: W8JI@contesting.com (Tom Rauch)
Date: Sun, 10 Sep 2000 12:51:34 -0400
> The MLA-2500 is apparently not a bandswitch destroyer.  The TL-922 is. 
> The 6000v Tune-C makes the 5000v bandswitch more vulnerable.  
>

Rich hits on a good point. Never size the bandswitch so it is the 
lowest voltage breakdown component in the tank. 

There should always be an air-gap with large surface area that 
breaks down before expensive components like vacuum variables 
and switches.

If Kenwood did that, and didn't include a gap, it is an engineering 
error. That's because HF voltages can easily reach levels that 
destroy switches and other components if the PA is misloaded.
73, Tom W8JI
w8ji@contesting.com

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