"Michael A. Terrell" wrote in message
m...

Jim Wilkins wrote:

"PrecisionmachinisT" ? wrote in message
...

? wrote in message
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? in college I learned how to design with vacuum tubes.

?Identify the value of component Rk in the following item:
?http://www.ebay.com/itm/RCA-TUBE-AMP...-/150984104264

Rk = Vg/Ip

In the movie "The Red Tent" the stranded aviators substituted pencil
lead for a broken one in their radio.


What crap solder work on that chassis. They used cheapo coupling
caps & left the original electrolytics.

The electrolytics they "left" are not coupling caps, they are B+ filter caps
for a preamp that resides on a separate chassis.