[Johnson] Done For Tonight & for awhile

[Jerry K]

One other glow, Roy (more beautiful than all the others to me), should 
be mentioned: The wonderful "turn out the shack lights and watch this!" 
purple glow of those two big 'ol 866's, right after that desk-shaking 
"clunk!" when you hit the switch on this old beast.

Richard:  See this link 
http://www.amwindow.org/tech/htm/valiantbytron.htm. Written by Tim, 
WA1HLR, who has forgotten more about AM rigs than most of us will ever 
know. He knows whereof he speaks. BTW, the AM Window website in general 
is good, good reading for any boatanchor fan, especially if you like to 
operate AM. And if you choose to go with solid state rectifiers in the 
future, email me. I have a few NIB plug-in SS replacements for 866/3B28 
rectifiers, and will mail you a couple of them-- no charge.
Jerry W5KP



On 7/2/2015 9:39 AM, Roy Morgan wrote:
> On Jul 2, 2015, at 5:38 AM, richard <ramnaz at peoplepc.com> wrote:
>
>> ... 1 of the 3--6146 started to get yellow / green and so I shut it off and will wait
> Richard,
>
> There are two kinds of color in tubes of the 6146 sort:
>
> - glow WITHIN the tube elements.  The glow is between the plate and the grids.  This indicates a gassy tube and is a problem.
>
> - glow ON the INSIDE of the glass envelope.  This is somewhat common and is due to electrons hitting the inside of the envelope after they escape the plate structure.  This is NOT a problem and can usually be ignored.
>
> You may not remember clearly where the bluish glow in your one tube was located, but it may not harm much to turn the transmitter on and run the high voltage long enough to see.
>
> Roy
>
>