About...
"I currently have 2 HF rigs in my shack. A TenTec Omni VI with 961 power
supply and a Kenwood TS-930 S/AT.
I want to plug them into a power strip or good surge supressor and I am
looking for some tips on a good supressor."
1. Most of the time the power switch is turned off, isolating the power
supplies from the lines.
2. When turned on and a spike should come along, it's of a very narrow
pulse width, and therefore has low total energy content. It is directed
through the power transformer into the high-value filter caps via a full
wave bridge rectifier, which present a virtual dead short to the spikes.
The transformer's core limits the current amplitude of the spikes to a
completely safe value, much lower than the instantaneous rating of the
diodes or the caps. Conclusion: no suppressor is needed--it would have
cost little price difference for the manufacturers to include
suppression. They knew it was not needed.
73, Roy K6XK ...with hundreds of thousands of hours running
ham gear with no suppressors and no damage... :-)
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