[R-390] 3tf7 replacement proceedure

[Michael Murphy]

Of course there is the tried and true:

1. Remove the 3TF7 with tube pullers (it may be warm).

2. Replace with a new 3TF7

3. And always good advice for the R-392:
SilicaGel - "Do Not Eat"

Mike WU2D


----- Original Message ----- 
From: <Flowertime01 at wmconnect.com>
To: <r-390 at mailman.qth.net>
Sent: Tuesday, October 11, 2005 9:29 PM
Subject: Re: [R-390] 3tf7 replacement proceedure


> Norman,
>
> If you have the 12bh7 base diagram from the back of a hand book you are
OK.
> I am running the modification in my R390A. Have been for 21 years.
>
> Roger KC6TRU
>
>
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