Data set 01
1961 Tung Sol
Published operating points and test conditions from this source.
SECTION 1
Triode
Capacitance
Grid To Plate Capacitance
1.8 pF
Input Capacitance
2.2 pF
Output Capacitance
1.3 pF
Voltage - Triode (single high frequency) ·Triode
2DZ4
Medium-mu miniature triode for UHF oscillator and Class-A amplifier service.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 1
- Base
- -
- Socket code
- B7G
- Base pins
- 7
- Nominal heater
- 2.35 V / 600 mA
Description
Medium-mu triode for UHF oscillator and Class-A amplifier service.
Socket description
Miniature 7-contact
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- -
- Socket code
- B7G
- Base pins
- 7
- Nominal heater voltage
- 2.35 V
- Nominal heater current
- 600 mA
- Parallel heater voltage
- -
- Parallel heater current
- -
- Series capable
- No
Terminal pinout
Electrical assignments shared by every tube using this base designation.
No verified pinout is recorded for this base designation.
Section ratings
1 physical section, each with unique specifications.
Section 1
Triode
X-ray radiationInterelectrode capacitances
- Plate resistance
- 2000 Ω
- Transconductance
- 0.0067 S
- Amplification factor
- 14
- Max plate voltage
- 135 V
- Max plate dissipation
- 2.3 W
- Max cathode current
- 40 mA
Medium-mu triode for UHF oscillator and Class-A amplifier service.
Source-dependent data
Operating conditions by source
Each block preserves the test conditions and published values from one reference. Values from different sources are intentionally kept separate.
Data set 02
1966 Tung Sol Electronic Tubes 1 of 4
Published operating points and test conditions from this source.
SECTION 1
Triode
Capacitance
GRID TO PLATE
1.8 pF
Capacitances | GRID TO PLATE 1.8 pf
HEATER WARM-UP TIME
11 s
Capacitances | HEATER WARM-UP TIME 11 SECONDS
LIMITS OF SUPPLIED CURRENT
40 mA
Capacitances | LIMITS OF SUPPLIED CURRENT 600 ± 40 MA.
Other
PLATE VOLTAGE
135 V
Oscillator | PLATE VOLTAGE 135 VOLTS
NEGATIVE GRID VOLTAGE
50 V
Oscillator | NEGATIVE GRID VOLTAGE 50 VOLTS
PLATE DISSIPATION
2.3 W
Oscillator | PLATE DISSIPATION 2.3 WATTS
PLATE SUPPLY VOLTAGE
80 V
Oscillator | PLATE SUPPLY VOLTAGE 80 VOLTS
PLATE DROPPING RESISTOR
2.7 ohm
Oscillator | PLATE DROPPING RESISTOR 2.700 OHMS
GRID RESISTOR
10 ohm
Oscillator | GRID RESISTOR 10.000 OHMS
PLATE CURRENT
15.5 mA
Oscillator | PLATE CURRENT 15.5 MA.
Characteristic
PLATE SUPPLY VOLTAGE
60 V
ClassA | PLATE SUPPLY VOLTAGE 60 VOLTS
PLATE DROPPING RESISTOR
2.7 ohm
ClassA | PLATE DROPPING RESISTOR 2.700 OHMS
PLATE CURRENT
15 mA
ClassA | PLATE CURRENT 15 MA.
TRANSCONDUCTANCE
6.7 uS
ClassA | TRANSCONDUCTANCE 6.700 pMHOS
PLATE RESISTANCE APPROX
2 ohm
ClassA | PLATE RESISTANCE APPROX. 2.000 OHMS
GRID VOLTAGE FOR Ib
-11 V
ClassA | GRID VOLTAGE FOR Ib = 20 NA. APPRO X. -11 VOLTS