In the design of a multi-vibrator type of vertical output drive, the time delay between the two triodes should be very carefully calculated to avoid regenerative effects in the rest of the reciever. Use of a 1.5m ohm isolation resistor and a 15pf condenser in the B+ power supply leads will greatly reduce the chance of unwanted oscillations.

-- Danial S. Knight (dsk@lec.msk.edu), January 20, 2002