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LY1DQ ham radio resources
TRIODE
GS-31B
The GS-31B triode fulfils generation and amplification functions in grounded-grid circuits in continuous-wave operation in the decimetric and metric wavelength ranges. OPERATING ENVIRONMENTAL CONDITIONS
147 134
G KH H ∅ 26,2 -0,8 ∅ 40,5 -0,5 ∅ 60,3 -0,8 ∅65
100,2 65 A 1,2 650
G
147-4
A
6,7±0,5
Cathode: indirectly heated, dispenser, oxide-coated. Envelope: metal-ceramic. Cooling: forced air. Height, mm, at most: with heat sink without heat sink Diameter, mm, at most: with heat sink without heat sink Mass, kg, at most: with heat sink without heat sink
14,2±0,5
GENERAL
15 +0,5 -1,5
40,3-0,5
∅ 100,2 -0,5 9,3±0,7
5-2000 98 343 1470 490 -60 to +70 98
45-1
105 max
Vibration loads: frequency, Hz acceleration, m/s2 Multiple loads with acceleration, m/s2 Single impacts with acceleration, m/s2 Linear loads with acceleration, m/s2 Ambient temperature, °C Relative humidity at up to +40 °C, %
CONNECTION OF ELECTRODES WITH LEADS
BASIC DATA Electrical Parameters Heater voltage, V Heater current, A Mutual conductance (at anode voltage 2 kV, grid voltage 1 V and anode current 250 mA), mA/V, at least Operating point (negative grid voltage at anode voltage 2 kV and anode current 250 mA), V Interelectrode capacitance, pF: input output, at most transfer Warm up time, s, at most Output power, W, min.: at anode voltage 1,8 kV, anode current 500 mA, wavelength 60 cm at anode voltage 1,7 kV, anode current 700 mA, wavelength 30 cm
12,6 3,1-3,7
22
H
Ig, Ia, A
6-12 19-24 0,12 3,8-5,2 120
60 180
Limit Operating Values Heater voltage, V Anode voltage, kV: DC instantaneous value Grid voltage (instantaneous value), V Cathode current (r.m.s. value), A Dissipation, W: anode grid Temperature at anode lead, °C Temperature at cathode and grid leads, °C Temperature at external ceramic parts, °C Wavelength, cm
KH
A - anode; G - grid; KH - cathode and heater; H - heater
2,0
U g=
50V
1,8 1,6
40
1,4
30
1,2
20
1,0
10 0
0,8 12-13,2
0,6
3 6 -400 to +120 1,4
0,4 0,2 0
-5 -10 50 40 30 20 10
0,4 0,8 1,2 1,6 2,0 2,4 2,8
3
1,0x10 22 200 120 250 28-100
Ua, kV
Averaged Characteristic Curves: U1=12,6 V; __________ anode; _ _ _ _ _ _ grid-anode Created by LY3NML
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LY1DQ ham radio resources Ia, Ig, A
1,6 1,4
1,2
500
0,8
1,2
P, W
2,2 2,0 1,8
1,0 0,8 0,6
1,2 2 1,6
0,4
0,8
2,2
10
20 30 40 50
Ug, V
P, W
1000 900 800 700 600 500
2 ,2 Ua=
kV 2,0
Averaged Characteristic 400 Curves Showing Output Powe and Efficiency versus Anode Current: 300 U1=12,6 V, λ=30 cm; __________ output power; _ _ _ _ _ _ efficiency (η η)
0,2 -30 -20 -10 0
1,6
η =30%
Averaged Characteristic Curves: U1=12,6 V; __________ anode; _ _ _ _ _ _ anode-grid
Ua =1 ,6k 2 2,2 V
1,8
25 20
1,8
15
1,6
10 5
500
700
900
Ia, mA
0
Averaged Characteristic Curves Showing Output Powe and Efficiency versus Anode Current: U1=12,6 V, λ=60 cm; __________ output power; Ua=2,2kV η = 50% _ _ _ _ _ _ efficiency (η η) 2,0 1,8 1,6 40 2,2 2,0 1,8 1,6 30
400 300
20
200 100
10
200 300 400 500 600 700 800 Ia, mA
Created by LY3NML