[Elecraft] KPA1500 fan speeds and fan noise

[Roy Koeppe]

All,

My solution is two 4.5-inch, 48-volt dc muffin fans sitting on half-inch 
tall rubber feet covering the top exhaust vent on amp. They are running on a 
19-volt supply at a slow but effective cooling speed and are very quiet 
(drawing air upward). During normal CW rag chewing the main fans do not come 
on -- a vast improvement for a few bucks. When you go portable, just leave 
'em home.

73,    Roy         K6XK