Just did a quick scan of the K3 assembly manual - wonder how many downloads
so far..?? !! The following will likely apply to the K3 also - I'll find
out next year for sure.
I'm at the end of day one of assembling my second K2, just finished the
Control Board. Used my trusty (old) auto ranging Fluke DMM to perform the
resistance checks and went down the tubes on the 8V regulator output,
measures 500 ohms - should the 3 to 4 Kohms.
To make a long story short.... be careful. I did a simple test with the
Fluke connected across a 3K resistor - my handheld DMM says the Fluke is
applying almost 0.5V. "Flipping" the meters, the handheld DMM only applies
about 60mV - and the 8V bus resistance check is fine measured on the
handheld DMM.
Clearly the Fluke's 1/2V is on the hairy edge of some of the active devices
on the 8V bus. It's interesting that the lead polarity makes no difference
in the resistance measurement at all.
Now I'll carefully read the K3 assembly manual, then start the K2 front
panel. Hmmm... I wonder. Nah, I'll still end up with a K2.
73 all, Bill N2BC
_______________________________________________
Elecraft mailing list
Post to: [email protected]
You must be a subscriber to post to the list.
Subscriber Info (Addr. Change, sub, unsub etc.):
http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/subscribers.htm
Elecraft web page: http://www.elecraft.com
