[Hallicrafters] Rectifier replacement

[Greg Gore via Hallicrafters]

The Weber tech is probably right when you add together the higher input line voltage of today and the higher B+ the Weber solid state rectifier produces. I've had good results running old equipment on 110V through a variac which reduces power transformer stress and a great deal of excess heat which would otherwise be produced from the 120 and higher input volts. 


The Weber would certainly be useful for bringing up a long dormant receiver on a variac though because it will conduct B+ at low voltage settings where a vacuum tube rectifier will not. 


Greg
WA1KBQ



-----Original Message-----
From: Waldo Magnuson <magnuson at mac.com>
To: hallicrafters <hallicrafters at mailman.qth.net>
Sent: Sat, Nov 15, 2014 10:35 am
Subject: [Hallicrafters] Rectifier replacement


Hi,  I've used several Weber CopperCap SS replacements for 5Z3 (SX-28) and other 
Hallicrafters boat anchors to reduce the heat and strain on the power 
transformer.  Recently I had a CopperCap short and blow fuses.  Weber is 
graciously replacing it but the tech expressed concern over the "high voltages" 
in the vacuum tube outfits.
   My question is; have any of used anything else, constructed your own, have 
used Webers, or what?  Thanks.
Skip Magnuson. W7WGM
Spokane, WA


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