[GreenKeys] Dovetron TUs

[jhhaynes at earthlink.net]

  Now there's a topic out of the past!

  On my unit there is a toggle switch at the far right end of the
  front panel that says SDS  on-off-reset and on the regenerator
  board there is a slide switch marked SDS on-off-test.  I can't
  find this on the schematics I have, nor on the assembly drawings
  for the regenerator board.  So does anybody else have one like
  this, and do you know what it does?


  jhhaynes at earthlink dot net