Peter,
One easy check is to make sure all relay pins are soldered. It is easy
to miss one, especially near one of the board vias (empty through-holes0
and a missed coil pin gives you a 50% chance of having the relay stuck
such that an extra L or C is on the at all times.
Others will respond with a more thorough checklist, but this is a really
easy visual check.
73,
Leigh/WA5ZNU
On Sat, 11 Aug 2007 6:27 am, Peter Wollan wrote:
According to the manual, it should be possible to adjust the null to
000, and it should be a broad null. On mine, it was extremely sharp,
and wouldn't get lower than 010, flickering to 011. Does this indicate
a problem? I went ahead and finished the installation -- the voltages
were fine, and the tuner seems to work just dandy.
I'm using a homemade dummy load, which seems to test out ok at least at
the lower frequencies, and I don't have a calibrated wattmeter (yet,
will borrow one soon).
Can/should the null be recalibrated, even though the resister has been
installed?
Peter N8MHD
_______________________________________________
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
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
