Memorandum for HPA



Power supply for Heater and Grids.
US 8 pin asign



4極管への電圧の与え方
Voltage for tetrods
Voltage 送信時 (ex.)
TX (ex.)
受信時 (理想)
RX
受信時 (現実1)
RX ex.1
受信時 (現実2)
RX ex.2
Plate ON (2000V) OFF ON ON
Screen
grid
ON (300V) OFF ON
  (OFFが望ましい)
GND
Control
grid
ON (-55V) Zero Cut OFF
  (送信時よりマイナス)
ON
 (-55v)
Heater ON (6.3V) ON ON ON
Drive ON (10W) OFF OFF OFF
Output ON (500W) OFF OFF OFF




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