On 7/9/2013 4:14 PM, PGrig wrote:
If you're turning the amp off (e.g., at the end of an operating session), must you turn off the switch on the back panel (assuming the fan has quit running) or is it OK simply to use the front panel switch for such shutdowns, leaving the back panel switch ON most of the time?
Just punch the front panel button and leave. I've been doing it for a couple of years, works great. I unplug it when we're going to be gone for awhile.
Does the unit, after the fan has stopped, draw any power
when the back panel switch is ON and the front panel switch is OFF?
Probably, like everything else electrical these days, they just go to sleep [don't know if they dream], but I think it's minimal at worst and negligible most likely. I unplug all of my stuff when we're leaving for awhile just for additional lightning protection. We get our water from a well, 4HP pump, that overrides all the other little things in the house except the A/C and oven in terms of electricity consumption.
I'm assuming that the back panel switch is for use when wanting to kill power to the chassis altogether, e.g., when servicing it.
No! No! NO!! If you are going to service any part inside with any part of the cover off, you unplug it! I don't really know what the back switch is for, I use the front switch and the plug, mainly because that's what I can get to easily and what I understand. I've never had the cover off my KPA500 after I put it together, but believe me, if I ever go in there for something, the plug will be out.
The DC voltages in the KPA500 are in the 70V range, probably won't kill you but it *will* get your attention, however the 120/240VAC is another matter. We want you around and on the air Paul, unplug it.
73, Fred K6DGW - Northern California Contest Club - CU in the 2013 Cal QSO Party 5-6 Oct 2013 - www.cqp.org ______________________________________________________________ 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
