[Elecraft] XV50, XV144, XV222 Assembly Manual

[David Pratt]

I have just been reading the Transverter XV50, XV144, XV222 Assembly 
Manual Rev B, March 2006 and notice on page 2 that the top cover has 
ventilation holes drilled in it.  My XV144 does not have any ventilation 
holes.

Should I drill some vent holes in the top cover, over the four 
metal-oxide resistors?  My XV144 does get hot and sometimes trips out if 
I transmit more than a few minutes. (Presumably F1, the resettable 
fuse.)

As there is space on the RF Board for a fan, similar to that used on the 
XV432, I am wondering whether there would be any advantage fitting a 
40mm x 40mm fan to the XV144?  Presumably, I would need to drill 
air-flow holes in the PCB and also in the bottom cover.

73
-- 
David G4DMP
Leeds, England, UK
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