[Johnson] Adventurer
Robert Jefferis
jefferis at antelecom.net
Wed Sep 23 17:13:08 EDT 2009
Tony,
The 110 V reading is high, indicating excessive leakage somewhere. I
often see 50-65 VAC from chassis to ground in old equipment with
somewhat "normal" leakage currents. Glen Zook is right, installation
of a 3-wire power cord is indicated, as it is with all gear of this
era. AC Line RF bypass caps are often a problem, but you can also have
transformer problems, that can turn the unit into a hidden "killer".
If you ground the chassis to electrical system safety ground and start
blowing fuses or, worse, electrical distribution circuit breakers,
then there is a serious problem. I did not take the time to look up
the current legal limits on transformer leakage current in
transformers, but Fluke and other companies sell test equipment
expressly designed to detect this problem.
Good luck, and play it safe:
Bob KF6BC
On Sep 23, 2009, at 11:46 AM, Tony Dawgs wrote:
> Hello All!
>
> The Adventurer that I have is reading 110 volts from the chassis to
> electrical
> ground, have tried reversing the power plug with the same results.
>
> Any suggestions, es thanks!
>
>
> --
> 73,
> Tony - K1AJD
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