Dwight. Something is wrong. Mine at 400-500 watts gets to about 65C during bunches of RTTY CQ's. It probably can go higher. Fan kicks in at expected values. 240v line.
73 de Brian/K3KO On 9/30/2012 14:53, DGB wrote: > Am running my fairly new kpa-500 in the rtty contest. It is situated out > in the open. > > it from 220v and during the run it's current runs at 10a and 64-74v. The > temp starts at 35c and as I run it slowly creeps up to 55-57c and kicks > out with the error message of "Pwr In High". > > I'm only driving this with a K-3 set at about 13w to drive the amp to > 350 watts. I wanted to take it easy on the amp and seems from the specs > that it should handle that. The amp. seems to be real sensitive to the > driving power of just a watt difference from the K-3. The power varies > at the amp from 250-350 watts when running and not fiddling with the K-3 > power knob. I have the fan set on 1 and didn't make any difference if I > set it to 6, it still would kick out in due time, just slightly longer. > Must mention it does it whether it's into a resonant antenna or a dummy > load. The temps just slowly climb. > > Anyone have a similar problem, makes it useless for rtty contesting and > running. No problems in CW contests at full bore! > > 73 Dwight NS9I. > ----- No virus found in this message. Checked by AVG - www.avg.com Version: 2012.0.2221 / Virus Database: 2441/5300 - Release Date: 09/30/12 ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
