[R-390] 6082 Question

[Kenneth G. Gordon]

Dave Metz wrote:

> Tom,
> There is an article in Hollow State Newsletter within the last couple of 
> years detailing a conversion that eliminates them and the huge heat they 
> create. By Dr. Jerry
> dave

Sigh...I sure wish I had known that when I still owned an R-390/URR, 
serial number 21. I had to replace two charred sockets once. I was 
amazed at the heat those things put out, especially when they were 
gassy.

Ken W7EKB