Tony Duell wrote:
  I seem to rememebr seeing references to little PCBs
you could fit over
 the pis nf defective 01As (between the valve and the holder) that
 contained an FET and a few other bits and let you keep 1920's radios in
 operation.  
Why bother?  You can't find any AM music from 20's anyhow.
More and more I find out about old Radios the tubes are the parts that work
the best.  It is the old CAPs that you have watch out for, and the  mechanical
parts. I tossed two old radios since the dial cords broke as well as other
major problems.
  -tony 
Ben.
PS. I have a old short wave radio I plan to oil up today in my spare time today.
(No WD-40 here!)