[Boatanchors] R-390A FIX FOR THE 3TF7 PROBLEM

[Greg Roecker]

Hi Bill.....I did the resistor route about 15 years ago.  My Stewart Warner 
has worked 4.0 the entire time.  I mounted it inside the chassis.  Your 
mileage may vary....but for me the resistor works great!  Good luck!

73,

Greg/n4osj


----- Original Message ----- 
From: "William Kipping" <ke7kk at earthlink.net>
To: "boatanchors" <boatanchors at mailman.qth.net>
Sent: Saturday, October 11, 2008 6:07 PM
Subject: [Boatanchors] R-390A FIX FOR THE 3TF7 PROBLEM


>
>
> Hi to All
> I recently purchased an R390A, (my first)  No surprise the 3TF7 ballast
> tube is open. I know of the three easy fixes,(45ohm 10w resistor, or a
> jumper and use 12ba6s in the pto/bfo, or use a 12BY7 as a load)   Thought
> I would ask for recommendations on which to use. Also if using a 12BY7 as
> the filament load fix , are any other jumpers needed on the tube socket or
> just a plug in Thanks for your advice Bill KE7KK
>
> _______________________________________________