[Boatanchors] 2-3 wire AC and Bypass capacitors

Robert Vincent robvi3 at gmail.com
Fri Aug 9 08:13:50 EDT 2019

The capacitors are there to short out transients that come down the AC
line. They also work well when lightening strikes nearby and send down
large voltage spikes.  I have had several rigs protected from damage by the
capacitors. In some instances the capacitors get fried pretty good. The
transients can puncture the insulation in the primary and secondary
windings of a power transformer. I routinely check isolation on boatanchors
using a very high resistance ohm meter. I like to see several meg ohms or
more of resistance to chassis. If I see in the 10's to 100's of kilo ohms I
investigate. Generally I replace them with .01uf at 1 to 2 KV ceramic.

Robert Vincent
DLM Antenna Technology

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