Voltage Triode Pentode ·Pentode-Triode
ECF1
Early triode-pentode combination tube for receiver and amplifier service; available source material does not establish a narrower function confidently.
- Sections
- 2
- Base
- -
- Socket code
- -
- Base pins
- 8
- Nominal heater
- 4 V / 1 A
Description
ECF1 is a triode-pentode device. The supplied datasheet was used for heater, ratings, characteristics, operating data, and capacitance information where published.
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- -
- Socket code
- -
- Base pins
- 8
- Nominal heater voltage
- 4 V
- Nominal heater current
- 1 A
- 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
2 physical sections, each with unique specifications.
Section 1
Triode
No fixed ratings are recorded for this section.
Distinct section.
Section 2
Pentode
No fixed ratings are recorded for this section.
Distinct section.
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.