Hi MIKE.

22-Sep-03 21:19:18, MIKE ROSS wrote to All

 MR> Alternatively instead of a transformer with extra taps, a second smaller
 MR> transformer with a higher voltage could be used to drive the bases.
 MR> Comments welcomed! 

  would this work?

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    3 ||| (_         |      `\|  /    |
    3 ||| (_         |       ~~T~~    |
    3 ||| (_         |__      rb      |
    3 ||| (_          __|______|      |
    3 ||| (_____     |  |             |___
    3 ||| (_  __|__  |  |____         |
    3 ||| (_  ////   |       |        |
    3 ||| (_         |       rb       |
    3 ||| (_         |     __|__      |
  __3 ||| (__________L_____/|  \______|
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a problem I see with both these circuits is that if they're feeding a
capacitative load the transistors could turn on before the voltage in the
transformer is enough to match the load's charge resulting in current
flowing the wrong way... transistors will work backwards to some extent

with inductive loads they'd probably be alright,