[R-390] 10-turn S-meter zero pot

Norman Ryan via R-390 r-390 at mailman.qth.net
Sat Feb 21 23:46:27 EST 2015


Hi, Larry,
I recall similar difficulty some time ago.  I think somehow you have to detach the bracket sufficiently to swap out the zero gain pot, using your ingenuity.  Fasteners are tricky to reach.
While you're contemplating this, consider using a ten-turn Bourne pot.  Then zero-ing the carrier level meter accurately becomes a breeze.  You won't require a locking ten-turn knob, but it gives a cool look to the IF deck.
73Norman
 
      From: Larry Snyder <larrys at teamlarry.com>
 To: r-390 at mailman.qth.net 
 Sent: Saturday, February 21, 2015 4:16 PM
 Subject: [R-390] 10-turn S-meter zero pot
   
Hi folks --
Every one of these I've seen has been a bit too big to wiggle into the
bracket on top of the IF chassis.  Is there something I'm missing?
thanx,
-ls-

______________________________________________________________
R-390 mailing list
Home: http://mailman.qth.net/mailman/listinfo/r-390
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:R-390 at mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html


   


More information about the R-390 mailing list