On Fri, 18 Feb 2005 16:43:03 -0500, Vinnie S. wrote:


Now for the reason: Uniden chose not to use an insulator. The mounting tab of
the final is Power ground. (emitter)
The heatsink is Chassi Ground. Connecting the final emitter to chassi ground (at
the mounting Screw) can sometimes cause an RF Ground loop."

Anyway, I will take a look at your solution too. Thanks.



Holy crap, that might have done it. While I did not spreak the coil, it appeared
to be pushed or slanted to one side. I just straightened it out a bit. Seems to
work. Will still do alignment. I will get back to you !


Be careful if you choose to insulate the transistor from the heatsink.
Be sure to use a plastic screw (or a smaller metal screw with a
plastic washer), or you won't really be insulating it.


That would have been the last try. I was going to bias as soon as a DMM came in
thru mailorder. But this coil think blows my mind. I still am not sold there
isn't another problem. I barely moved the thing, but Jim was right. It made
enough of a difference.

Vinnie S.


Spoke too soon. Problem reoccured.

Vinnie S.