[Elecraft] KPA-Anything Over 500 Watts

[Dauer, Edward]

At the time I bought the KPA500 I looked seriously at a number of 
higher-power alternatives, including some from Tokyo Hy-Power I think it 
was called, now QRT.  I hired an electrician to assess what I would need 
by way of AC mains wiring to support an amp safely.  The current draw on 
the KPA500 was at the limit of what I could do without running a new 
dedicated 220 line to the operating position.  The cost of adding a new 
line would have been significant, even in this house which was built in 
1996 and has wiring adequate to support electric everything, including 
heat, on a Colorado mountain top yet.  Hence I bought the KPA500, which I 
just plug into the existing 117 sockets.  I wonder if that is the location 
of a break point in the marketability curve - i.e. the point at which an 
amp has for at least some potential buyers a total cost in excess of its 
price.

Ted, KN1CBR