Oops, I missed "resistance checks". Getting senile. Lyle is correct, of course. I'd probably want to check the calibration of the ohmmeter function before using it, especially if the VOM is fairly old. Just don't try to use the VOM for voltage measurements.
Bill W5WVO ----- Original Message ----- From: "Lyle Johnson" <[EMAIL PROTECTED]> To: <[email protected]> Sent: Wednesday, October 08, 2008 12:20 PM Subject: Re: [Elecraft] dmm vs vom > > Is there any problem using a VOM instead of a DMM to perform the > > resistance checks while building the K3? > > As long as the negative side of the internal battery that is feeding the > resistance measurement circuit is applied to the ground side of whatever > is being measured in the K3 during the check, and the open circuit > voltage of the ohmmeter is not more than 3 volts, it should be safe. > > Some VOMs used a 9V battery in the resistance circuit and/or tied the > positive side to the "black lead." At least, some of my old VOMs did. > > 73, > > Lyle KK7P > _______________________________________________ > 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 > _______________________________________________ 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
