[Amps] Inexpensive variable air cap for amps

[Hsu]

Peter,
  I'm planning to built a portable light weiht 4CX1000A AMP, I need the minture HV caps.
I found simlar design in a very old Chinese solid transmitter, it design in  end of 1960s.
  I think there is another problem when it was used for  a long time  the film will damage
 due to abrasion.
     73! Hsu 
  ----- Original Message ----- 
  From: Peter Chadwick 
  To: Hsu ; amps at contesting.com 
  Sent: Wednesday, September 06, 2006 2:23 AM
  Subject: RE: [Amps] Inexpensive variable air cap for amps


  When jackson Bros were in business, they did do some specials which had the teflon film in them. It didn't increse the voltage rating by a lot, but it did increase the capacity - bath max and min. After all, it's only the same old solid dielectric variable that has been around since the early 1920's.

  73

  Peter G3RZP