Voltage - Dual Triode (similar high frequency) ·Triode-Triode
Series-heater twin triode for radio front ends, combining RF amplification with self-oscillating mixer service for tuner frequency conversion.
Twin triode for RF amplification and self-oscillating mixer service; source also designates 10L14.
Small-button Noval 9-contact
General specifications
Properties common to every published source and operating point.
Electrical assignments shared by every tube using this base designation.
No verified pinout is recorded for this base designation.
2 physical sections, each with unique specifications.
Section 1
Published ratings and characteristics promoted from the approved source.
Section 2
Second physical triode restored.
Source-dependent data
Each block preserves the test conditions and published values from one reference. Values from different sources are intentionally kept separate.
Data set 01
Published operating points and test conditions from this source.
Plate Voltage
170 V
EachSection
Plate Current
10 mA
EachSection
Transconductance
6200 µS
EachSection
Amplification Factor
50
EachSection
Plate Resistance
8400 ohm
EachSection
Data set 02
Published operating points and test conditions from this source.
HeaterVoltageNominal
26 V
Nominal
HeaterCurrentNominal
100 mA
Nominal
Maximum Plate Voltage
250 V
Maximum Plate Dissipation
2.5 W
Data set 03
Published operating points and test conditions from this source.
Application
RF amplifier / self-oscillating mixer
Data set 04
Published operating points and test conditions from this source.
Plate voltage
100 V
RF amplifier
Plate current
10 mA
RF amplifier
Maximum plate voltage
250 V
Transconductance
5800 uS
Amplification factor
56
Data set 05
Published operating points and test conditions from this source.
Va
161 V
OPERATING CONDITIONS AS R.F. AMPLIFIER
gm
1 mA
OPERATING CONDITIONS AS R.F. AMPLIFIER
ra
8.5
OPERATING CONDITIONS AS R.F. AMPLIFIER
Va max
250 V
RATINGS (ABSOLUTE MAXIMUM SYSTEM)
Vg max
100 V
RATINGS (ABSOLUTE MAXIMUM SYSTEM)
The triode on pins
8
The triode on pins 6, 7, 8 should be used as the r. f. amplifier and that on
B4
5 a
The triode on pins 6, 7, 8 should be used as the r. f. amplifier and that on
v,
100 v
The triode on pins 6, 7, 8 should be used as the r. f. amplifier and that on
o
8 mA
The triode on pins 6, 7, 8 should be used as the r. f. amplifier and that on
v;
0 v
The triode on pins 6, 7, 8 should be used as the r. f. amplifier and that on
10 - Vg
10
The triode on pins 6, 7, 8 should be used as the r. f. amplifier and that on
AND GRID VOLTAGE PLOTTED AGAINST ANODE CURREN T, Va =
170
The triode on pins 6, 7, 8 should be used as the r. f. amplifier and that on
v;
200 v
The triode on pins 6, 7, 8 should be used as the r. f. amplifier and that on
50 I a
50 a
The triode on pins 6, 7, 8 should be used as the r. f. amplifier and that on
a
15 a
The triode on pins 6, 7, 8 should be used as the r. f. amplifier and that on
AND GRID VOLTAGE P LOT TE D AGAINST ANODE CURREN T, Va =
200
The triode on pins 6, 7, 8 should be used as the r. f. amplifier and that on
Data set 06
Published operating points and test conditions from this source.
HeaterVoltageNominal
26 V
Nominal
HeaterCurrentNominal
100 mA
Nominal
Maximum Plate Voltage
250 V
Maximum Plate Dissipation
2.5 W
Maximum Cathode Current
15 mA
Transconductance
6700 µS
Typical
Amplification Factor
48
Typical
Plate Resistance
7000 ohm
Typical
Data set 07
Published operating points and test conditions from this source.
Heater or filament voltage
26 V
Published nominal value
Heater or filament current
100 mA
Published nominal value
Transconductance
6000 µS
Published operating characteristic
Maximum plate dissipation
2.5 W
Published maximum rating
Data set 08
Published operating points and test conditions from this source.
Typical anode current
10 mA
EachTriode
Transconductance
6700 µS
EachTriode
Amplification factor
48
EachTriode
Internal resistance
7 kΩ
EachTriode