Data set 01
1957 Philips Receiving and Amplifying Tubes
Published operating points and test conditions from this source.
SECTION 1
Triode
Application
Application
Audio output
Other
Class-B operation
Published
ClassB
Power - Triode ·Triode
4613
Power triode documented for amplifier or control service, with manufacturer operating data emphasizing useful power output rather than small-signal voltage amplification. Its available documentation does not justify a narrower specialized functional category.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 1
- Base
- -
- Socket code
- -
- Base pins
- -
- Nominal heater
- 4 V / 1 A
Description
Directly heated output triode for Class-A, B, and AB audio service.
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
- 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
1 physical section, each with unique specifications.
Section 1
Triode
X-ray radiationInterelectrode capacitances
- Plate resistance
- 1700 Ω
- Transconductance
- 0.0035 S
- Max plate voltage
- 500 V
- Max plate dissipation
- 12 W
- Max cathode current
- 60 mA
Published Philips ratings and operating data promoted where applicable.
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
1999 Philips 0-D
Published operating points and test conditions from this source.
SECTION 1
Triode
Other
Plate voltage
250 V
ClassA
Plate voltage high-voltage
500 V
ClassA
Plate current
48 mA
ClassA
Characteristics
Transconductance
3.5 mA/V
ClassA
Plate resistance
1.7 kohm
ClassA