GENERAL
Cathode:  indirectly heated, oxide-coated.
Envelope:  metal ceramic.
Cooling:  forced air - 96 m3 / hr ( just under 57 CFM) at 30mm H2O for 1600W dissipation
Height, mm, at most:	115
Diameter, mm, at most:	99
Mass, Kg, at most:	1.5

ENVIRONMENTAL OPERATING CONDITIONS
Vibration loads:
frequency, Hz	1-80
acceleration, m/s²	50
Multiple impacts with acceleration, m/s²	150
Ambient Conditions:
Temperature, °C	-10 to +55
Relative humidity at up to +35 °C, %	98

NOMINAL ELECTRICAL PARAMETERS
Heater voltage, V	27.0
Heater current, A	3.7
Mutual conductance (Va = 750V, Vg2 = 375V, Ia = 2A, change in Vg1 = 1V), mA/V:	71
Negative bias (Vg1) with Va = 750V, Vg2 = 375V, Ia > 2A, V:	10-50
Negative cutoff bias (Vg1) with Va = 2KV, Vg2 = 375V, Ia = 20mA, V:	150
input capacitance, pF	102.5
output capacitance, at most, pF	20.5
transfer capacitance, pF	<0.2
Warm up time, s:	<180
AB1 Output, Va = 2KV, Vg2 = 375V, Ig1 < 0mA, Ig2 > 80mA, frequency 0.1-1 MHz, KW:	>1.5
Designed Tube Life (hours)	>1500

ELECTRICAL PARAMETER LIMITS
Heater voltage, V	25.6-28.4
Heater current, A	3.4-4.0
input capacitance, pF	90-115
output capacitance, pF	18-23
Maximum CW Anode voltage (Va), KV:	2.2
"Maximum" Control Grid voltage (Vg1), V	-150
Maximum Screen Grid voltage (Vg2), V	400
CW cathode current (Ic), A:	2
Peak cathode current (Ic), A:	6
Anode Dissipation, W:	2500
Screen Grid (G2) Dissipation, W:	30
Control Grid (G1) Dissipation, W:	1
Temperature at envelope (hottest point), °C	200
Frequency, MHz:	<250

Averaged Grid-Anode Characteristic Curves: Uf = 27V; Ug2 = 400V

Averaged Anode Characteristic Curves: Uf = 27V; Ug2 = 400V

Averaged Anode-Grid and Grid Characteristic Curves: Uf = 27 V; Ug2 = 400 V; _____ Ia; - - - Ig2