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Technical Topics => Equipment => Topic started by: myteaquinn on January 30, 2014, 0105 UTC

Title: NRD-505
Post by: myteaquinn on January 30, 2014, 0105 UTC

I just received a NRD-505 that I bought off ebay and I'm having an issue with it. I plugged the radio in turned it on and as I was screwing the coax into my splitter I got a little shock. I tested it a second time with the same results. How could the antenna jack be energized and what can I do about it, other than send it back. Thanks for any suggestions.

Title: Re: NRD-505
Post by: RadioAnarchy on January 30, 2014, 1636 UTC

Yes, this is a typical problem with older AC mains powered electronics,
such as guitar amplifiers.

they have a 2 wire AC power cord, with capacitors going from the "hot" side of
the AC line to ground.....so when you touch your piece of equipment,
and then ground, you get a little shock.

I found the schematic to the 505 and is shows just this....
so remove capacitors C1 and C2, and wire up a 3-wire power cord, that has a ground.

or to make things quick, hook a ground wire from the radio to the ground screw on
your 110 VAC outlet.

Title: Re: NRD-505
Post by: myteaquinn on January 30, 2014, 2114 UTC

Thanks RadioAnarchy I'll try grounding the radio first of all. I'm trying to move my radio stuff into it's own room and there I'm planning on putting a much better grounding system than what I've got now.

Title: Re: NRD-505
Post by: Nella F. on January 31, 2014, 0006 UTC

Cool! NRD 505/515/ I'm jealous! Should a bought one when I had the chance. Love the ergonomics!