The voltage rating is not the problem; after all there is less than 300v
rms across a 50 ohm load with 1500 watts power.
The killer is current because losses are related to current squared. Losses
manifest as heat and the smallish capacitor can only tolerate so much of
that before flaming out.
73,
Gerald K5GW
In a message dated 12/4/2013 7:12:20 A.M. Central Standard Time,
magoo@isp.ca writes:
I read some time ago where W8JI had employed two mica "snubber" caps of
500 pf each in parallel to give added C in the loading of a TL-922 amp he was
repairing. As far as I can discover, these are rated at only 1000V each.
Most of the doorknob caps I have seen in various amps are rated at 5 or 7
KV. Is this voltage rating overkill? Should these mica snubber caps not
be run in series for safety?
VE3NH
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