GS-37

TRIODE

The GS-37 triode is a frequency multiplier in the centimetric wavelength range.

GENERAL
Cathode: indirectly heated, oxide-coated.
Envelope: metal-ceramic.
Height: at most 28.7 mm.
Diameter: at most 15.4 mm.
Mass: at most 8 g.

BASIC DATA Electrical Parameters
Heater voltage (AC or DC), V	6.3
Heater current, mA	290-350
Anode voltage (DC), V	250
Anode current (DC), mA	10
Inverse grid current (at negative grid voltage 2 V, anode DC current 5 mA), µA, at most	2
Oscillator power (at heater voltage 6.3 V), mW, at least	35
Warm up time, s, at most	40
Interelectrode capacitance, pF:
input	2-3.2
output, at most	0.01
transfer	1.4-2.2

Limit Operating Values
Heater voltage, V:
maximum	6.6
minimum	6
Maximum anode voltage (DC), V	300
Grid voltage (DC), V:
maximum	0
minimum	20
Maximum power delivered to anode, mW	2.5-103
Maximum grid dissipation, mW	100
Maximum RF power delivered to cathode-grid tuned circuit (in frequency multiplication mode), mW	200
Minimum power by the end of guaranteed life, mW	26
Anode current, mA:
maximum	12
minimum	5
Maximum grid current, mA	2
Frequency, MHz:
maximum	8,000
minimum	6,500
Maximum envelope temperature, °C	200

Averaged Anode Characteristic Curves:
U_f = 6.3V

Averaged Anode-Grid Characteristic Curves:
U_f = 6.3V

Characteristic Curves Showing Output Power and Gain Coefficient versus Anode Current in Frequency Tripling Mode:
U_f = 6.3V; P_in = 200mW; L = 4.3cm;
_____ P(W);
_ _ _ K_p

Characteristic Curves Showing Output Power and Gain Coefficient versus Input Power in Frequency Tripling Mode:
U_f = 6.3V; U_a = 250V; I_a = 10mA; L = 1.3cm;
_____ P(W);
_ _ _ K_p

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