GS-35B

TRIODE

The GS-35B triode provides continuouswave generation in external-feedback selfsustained oscillators and amplifiers at up to 1,000 MHz, in circuits with a common point at grid.

GENERAL
Cathode: indirectly heated, oxide-coated.
Envelope: metal-ceramic.
Cooling: forced air.
Height: at most 177 mm.
Diameter: at most 100.2 mm.
Mass: at most 2.8 kg.

A - anode; C - grid; P - heater; KP - cathode and heater

BASIC DATA Electrical Parameters
Heater voltage, V	12.6
Heater current, A	2.65-3.25
Mutual conductance (at anode voltage 2.5 kV, grid voltage change -1 V, anode current 0.4 A), mA/V	25-40
Penetration factor (at anode voltage 2.5 kV, grid voltage change -200 V, anode current 0.4 A), %	0.8-1.2
Operating point (negative grid voltage at anode voltage 2.5 kV, anode current 0.4 A), V	12-6
Interelectrode capacitance, pF:
input	18-24
output, at most	0.12
transfer	3.8-5.0
Warm up time, s, at most	90
Output power, W:
at anode voltage 2.5 kV, anode current 0.7 A, wavelength 60 cm, at least	800
at anode voltage 2.2 kV, anode current 0.8 A, wavelength 30 cm, at least	350
Output power over 500 h of service (at anode voltage 2.5 kV, anode current 0.7 A, wavelength 60 cm), W, at least	650

Limit Operating Values
Heater voltage, V	11.9-13.3
Anode voltage, kV:
DC	3
instantaneous value	6
Grid voltage, V	400 to +120
Cathode current, A	1.4
Dissipation, W:
anode	1.5x10³
grid	26
Temperature, °C:
anode	200
grid and cathode leads	120

Standard Operating Conditions
	Condition I	Condition II
Heater voltage, V	12.6	12.6
Anode voltage, kV	2.2	2.5
Anode current, A	0.8	0.7
Output power, W, at least	350	800
Wavelength, cm	30	60

Averaged Anode and Grid-Anode Characteristic Curves:
U_f = 12.6V
_____ anode;
_ _ _ grid-anode

Characteristic Curves Showing Output Power versus Anode Current:
U_f = 12.6V; L = 30cm

Characteristic Curves Showing Output Power versus Anode Current:
U_f = 12.6V; L = 60cm