Data set 01
1951 Mullard Valve and Service Manual
Published operating points and test conditions from this source.
SECTION 1
Triode
Characteristic
Heater Voltage
6.3 V
Heater Current
250 mA
Other
MaximumOperatingFrequency
600 MHz
Oscillator
Voltage - Triode (single) ·Triode
EC53
Miniature ultra-short-wave triode for low-power oscillator service to approximately 600 MHz.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 1
- Base
- -
- Socket code
- -
- Base pins
- -
- Nominal heater
- 6.3 V / 250 mA
Description
Miniature ultra-short-wave triode for low-power oscillator service to about 600 MHz.
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- -
- Socket code
- -
- Base pins
- -
- Nominal heater voltage
- 6.3 V
- Nominal heater current
- 250 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
- 11400 Ω
- Transconductance
- 0.0029 S
- Amplification factor
- 33
- Max plate voltage
- 250 V
- Max plate dissipation
- 3.6 W
Published Mullard ratings and characteristics promoted from the supplied 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
Capacitance
Input capacitance
1.3 pF
Output capacitance
0.13 pF
Characteristics
Plate voltage characteristic
200 V
Plate current
7.5 mA
Plate resistance
1400 ohm
Other
Maximum operating frequency
600 MHz
Oscillator plate voltage
250 V
110MHz
Oscillator plate current
14.5 mA
110MHz
RF output power
1.3 W
110MHz
Oscillator plate voltage
250 V
165MHz
Oscillator plate current
14.5 mA
165MHz
RF output power
1.2 W
165MHz
Oscillator plate voltage
250 V
210MHz
Oscillator plate current
12.5 mA
210MHz
RF output power
0.8 W
210MHz
Oscillator plate voltage
250 V
285MHz
Oscillator plate current
12.5 mA
285MHz
RF output power
0.5 W
285MHz
Oscillator plate voltage
200 V
335MHz
Oscillator plate current
12.5 mA
335MHz
RF output power
0.35 W
335MHz
Oscillator plate voltage
200 V
400MHz
Oscillator plate current
12.5 mA
400MHz
RF output power
0.3 W
400MHz