[Boatanchors] Heathkit Apache power cord

[Jim Wiley]

Gary -


Why not get an integrated power inlet and fuse fitting, as found on most 
modern instruments.  These fit the "standard" 3-wire power cord, as used 
on computers and test equipment.  I think the Apache needs about a 6 or 
7 ampere fuse, if memory serves, and that is well within the ratings for 
that type of portable cord. 


There are many types to chose from in the Mouser catalog - check pages 
1190-1250 or thereabouts.  Typical cost is about $4.00 for a basic combo 
inlet and fuse-holder, up to perhaps $20.00 for one with a built-in RFI 
filter - and anything in-between.   You can probably salvage one for 
free from a junker computer power supply,  and you get a DC fan for free 
too!!   I don't think you will have any trouble mounting it, but you may 
have to move a few parts a bit. 

 
You will have to do a bit of metal work to enlarge the hole in the 
Apache chassis, but that is simply an exercise with a electric drill or 
metal nibbler and a file.  No big deal, really.


If this doesn't appeal to you, then get standard "3AG" type fuse holder, 
which fits a 1/4" by 1 1/4" fuse.  Make or enlarge a hole to 1/2", and 
you're good to go.    Put the fuse in only the "hot" side of the cord - 
the black wire.  The white wire is for the AC neutral, and must remain 
un-fused.  The green wire is of course ground, and must connect directly 
to the chassis.


You will need a 16 AWG cord - the Apache draws a bit too much current 
for a standard 18 GA cord.


- Jim,  KL7CC




Gary Schafer wrote:
> What do you guys do for a fuse and power cord on the apache?
>
> I was thinking of taking that killer half box off the back where the power
> cord connects to the feed thru caps. 
> What about just doing away with the feed thru caps, running the new power
> cord thru one of the holes and mount a fuse holder in the other hole.
>
> Of course a 3 wire power cord.
>
> Any other suggestions?
>
> Thanks
> Gary  K4FMX
>
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