Data set 01
1958 Mullard Receiving Tubes
Published operating points and test conditions from this source.
SECTION 1
Triode
Characteristic
Heater Voltage
6.3 V
Heater Current
300 mA
Voltage - Triode (single high frequency) ·Triode
EC98
UHF triode intended for grounded-grid receiver amplifiers.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 1
- Base
- -
- Socket code
- B7G
- Base pins
- -
- Nominal heater
- 6.3 V / 300 mA
Description
UHF triode intended for grounded-grid receiver amplifiers.
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
- -
- Nominal heater voltage
- 6.3 V
- Nominal heater current
- 300 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
- 3700 Ω
- Transconductance
- 0.0135 S
- Amplification factor
- 50
- Max plate voltage
- 150 V
- Max plate dissipation
- 2.2 W
Published ratings and characteristics promoted from the supplied Brimar source.
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
1963 Mullard
Published operating points and test conditions from this source.
SECTION 1
Triode
Application
Application
UHF/VHF oscillator or amplifier
Characteristics
Plate voltage
150 V
Plate current
13.5 mA
Grid voltage
-1.35 V
Transconductance
13.5 mA/V
Amplification factor
50
Plate resistance
3700 ohm
Grid cutoff at 60uA
-15 V