Rich says:
>... too much power is lost with large tetrodes - which have No
>requirement for ability to shunt large negative screen currents. For
an
>8171, we are talking about adding a several kV supply and very roughly
>500w on standby.
If there's no negative screen current, then you can get away without a shunt
screen supply, admittedly. But you made a blanket, general staement. There are
ways of shunt and series regulating at voltages over 800. Thery may not be
applicable to a particluar tube - but they exist, and have done for years. How
do you think they made serrodynes?
73
Peter G3RZP
--
FAQ on WWW: http://www.contesting.com/FAQ/amps
Submissions: amps@contesting.com
Administrative requests: amps-REQUEST@contesting.com
Problems: owner-amps@contesting.com
|