[Elecraft] How far can the KPA1500 amp be from the PS?

[john at kk9a.com]

I would revisit running a 240 outlet into the shack. You would need very
large conductors to have the power supply that far away and laying these
wires on the floor would certainly not be aesthetically pleasing.  It is
sometimes a bit of work and may require some drywall repair however I cannot
imagine a situation were running another electrical circuit is not possible.
How do you get all of the other cables into your shack? Find a different
electrician. MY Aruba home had solid concrete walls and I added a 240v
outlet.

John KK9A


[Elecraft] How far can the KPA1500 amp be from the PS?
Dauer, Edward edauer at law.du.edu 

The KPA1500 Manual states that "the power supply can be operated remotely"
and that the supplied cables are 66 inches long.  It does not say how far
apart, beyond the 66 inches, the PS and the amp can be without affecting
performance or creating other issues.  

Does anyone know?  There are apparently three cables - the main HV, the
15-pin control, and the 12VDC phono plug cable for remote turn-on of the
amp.

I am thinking about buying a KPA1500 but may have trouble bringing 220 VAC
into the shack.  One electrician I hired long ago to look at the question
told me it could not be done in an aesthetically acceptable way given the
nature of the construction of the basement walls where the station is.
That's why I bought the KPA500 rather than a KW amp at the time. There is a
220 VAC outlet in another room on another floor of the house, which might
allow me to lay some long cables while I am trying to figure out how to get
220 into the shack.  It is used to power the cook-top so the current
capacity is likely sufficient - which I check by looking at the breakers. 

The tripping hazard of doing this might itself be unacceptable, but I'd like
to think about it.  The other possibility would be using a 220 VAC extension
cord and locating the PS in the shack itself, but that seems even more
dangerous . . . 

Thoughts, anyone?

Thanks, as always,

Ted, KN1CBR