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Old 01-13-2010, 04:53 AM
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bandersen bandersen is offline
RCA 741PCS
 
Join Date: Mar 2009
Location: Chicago, IL
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Quote:
Originally Posted by Reece View Post
Very nice pictures! Amazingly sharp. I noticed that set used a 6X5 in the power supply section. Those have been known to short and take out a power transformer. Here is a whole discussion about the early vs. the later version of the tube, the later "X" plate design usually deemed more rugged. One good idea is noted: provide a separate 6.3 volt transformer for the 6X5 heater, so that if it does short, it won't take out the power transformer. Some just replace the tube with a couple of diodes.

http://antiqueradios.com/forums/view...&highlight=6x5

Thanks for the reminder. You guys warned me about that tube when I picked up my Halicrafters too.

I was flipping through the production changes and discovered that Admiral added a fuse on the power supply on later runs.
They also suggest that when servicing this set to retrofit a fuse in if it's not already there.

I think I may go the diode route since it's easily reversable
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