[R-390] Hot Chassis

[Barry]

The power inlet filter leaks enough to give a decent current flow to the chassis.  A lot of folks ditch that in lieu of a modern power filter.

Thanks,
Barry - N4BUQ

----- Original Message -----
> From: "Stan Gammons" <s_gammons at charter.net>
> To: r-390 at mailman.qth.net
> Sent: Saturday, November 11, 2017 11:34:18 AM
> Subject: [R-390] Hot Chassis
> 
> Hi All,
> 
> After swapping all of the paper caps, the plug in electrolytics,
> replacing a couple of tubes in the audio deck which were causing an odd
> motorboating in the audio, replacing the RF deck and performing the
> alignment; I have a pretty decent performing R-390A now. There aren't a
> large number of out of tolerance carbon comp resistors in the radio, but
> at some point I plan to go back and replace them one deck at a time
> until all have been swapped. But, I don't really like being shocked and
> was wondering what is the preferred method to get rid of the hot
> chassis?   Simply install a 3 wire power cord?  Seems like I read
> there's still enough leakage current to trip the GFCI breakers, so maybe
> that's not the best way to go about it.
> 
> 
> 73
> 
> Stan
> KM4HQE
> 
> 
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