View Full Version : Power Cord Replacement Dos & Don'ts?


Chip - HP
06-23-2004, 11:03 AM
While I have accumulated quite a few table top tube radios from the '40s & '50s, I have never replaced a power cord on one (even though I have several that need new ones) ... any do's and don'ts? ... or a link that details the process? ...

Paula
06-26-2004, 03:20 PM
Hi Chip,

Replacing the line cord on a vintage radio is a fairly straightforward process, assuming you have basic mechanical and soldering skills. Generally speaking, just attach the new cord at the same points as the old.

When replacing a line cord, some restorers like to address the inherent safety issues of the basic "All American 5" hot-chassis design by installing a polarized plug. This is a fairly complex issue, sometimes controversial, but one that you might want to consider if you have little ones about. There is a very good discussion of this subject at Phil's Old Radios (http://antiqueradio.org/safety.htm).

All of the above assumes that you do not have one of those "resistance" line cords that were sometimes used on very early radios.

Paula

dr*audio
06-27-2004, 12:46 PM
Might I add:
Most old tabletop radios I have worked on just tie a knot in the power cord to retain it in the back panel, but some might have a nylon Heyco retaining clip. These are removed by compressing them with a pliers while pulling them out. Most can be reused, but you must make sure your replacement cord is the same thickness and width. If you need to replace one, McMaster-Carr should have them.

Sandy G
06-27-2004, 09:43 PM
I have a '35 Emerson that has one of those resistor cords- gets hot as a firecracker very fast. Obviously,I barely ever "play" this set- basically for "show"only. Product liability laws must have been non-existant back then. - Sandy G.

Chip - HP
06-28-2004, 05:14 PM
Thanks ... Paula and Warren ... for the info ...