Power - Pentode Single (NOT beam) (under 10W) ·Pentode
C443NSERIE250
Series-heater power-output pentode documented by Philips with heater data, operating characteristics, limiting ratings, and section-level electrical information for receiver output service.
- Sections
- 1
- Base
- -
- Socket code
- B4
- Base pins
- 4
- Nominal heater
- 40 V / 250 mA
Description
C443NSERIE250 is a series-heater power output pentode. The supplied Philips datasheet was read for heater data, operating characteristics, limiting ratings, and section-level electrical information.
Socket description
European 4-pin base
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- -
- Socket code
- B4
- Base pins
- 4
- Nominal heater voltage
- 40 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
Pentode
- Plate resistance
- 33000 Ω
- Transconductance
- 0.0015 S
- Amplification factor
- 50
- Max screen voltage
- 150 V
- Max plate dissipation
- 6 W
Series-heater power output pentode
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.