[Johnson] Valiant rebuild

A Lawrence Fibich lfibich at sbcglobal.net
Mon May 25 00:23:32 EDT 2015


Good point Glen,,, so loose the fuse on the white (ground) wire. - or jumper it if you use a twin fused line. However, chances are the black line fuse would blow and the white line fuse redundancy that is really not needed -- yes the 'box' would be at ground potential not unlike the "old 2 line/wire" house AC line wiring in which the white was ground/ed...  But the idea is still that this would/will provide a fused line instead of putting a fuse on the 'black' side within the unit...  and of course the fuse would protect better than the 'house' AC line fuse/circuit breaker - e.g. of a much lower current rating.I suggested this for those who had some difficulty/problem putting/mounting a fuse inside the unit.
Larry AF6LF 


     On Sunday, May 24, 2015 9:03 AM, Glen Zook via Johnson <johnson at mailman.qth.net> wrote:
   
 

 NFPA NEC (National Electrical Code) calls for a fuse in the "hot" (black) wire.  In general, it is not a good idea to fuse the "neutral" (white) wire because, if only the fuse in the "neutral" blows, there will still be line voltage present in the unit. Glen, K9STH

Website: http://k9sth.net
      From: A Lawrence Fibich <lfibich at sbcglobal.net>
 To: Larry Oneets <oneets123 at gmail.com>; "Johnson at mailman.qth.net" <Johnson at mailman.qth.net> 
 Sent: Saturday, May 23, 2015 8:04 PM
 Subject: Re: [Johnson] Valiant rebuild
  
With the questions about the fuse/s - got me to thinking and I just wired -- take a 3 prong plug - cut the female part off - splice in a couple of inline fuses - and then put into an electrical box and connect to a 3 prong dual electrical plug-in socket - with a cover.  Then you have 2 electrical receptacles with fuse/d protection... occurred to me I have a couple of Heathkit units that are not fused/protected - plugging them into such will protect them as well.   THANKS for getting me thinking.  Of course with this  arrangement - no need to rewire/cut holes, etc., in your units to have them fused.
Larry F.AF6LF 


  
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