Data set 01
1953 AEG
Published operating points and test conditions from this source.
SECTION 1
Triode
Other
Typical Plate Voltage
250 V
Typical Plate Current
10 mA
Capacitance
GridPlateCapacitance
1.6 pF
Grid Earth Capacitance
2.8 pF
Voltage - Dual Triode (similar) ·Triode-Triode
ECC801S
Special-quality long-life version of the ECC81 family for reliable amplifier and oscillator service in professional equipment, with controlled characteristics and enhanced durability.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 2
- Base
- -
- Socket code
- B9A
- Base pins
- 9
- Nominal heater
- 12.6 V / 150 mA
Description
Special-quality RF twin triode designed for high reliability and long service life; equivalent to 6201.
Socket description
Small-button Noval 9-contact
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- -
- Socket code
- B9A
- Base pins
- 9
- Nominal heater voltage
- 12.6 V
- Nominal heater current
- 150 mA
- Parallel heater voltage
- 6.3 V
- Parallel heater current
- 300 mA
- Series capable
- Yes
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
X-ray radiationInterelectrode capacitances
- Plate resistance
- 10900 Ω
- Transconductance
- 0.0055 S
- Amplification factor
- 60
- Max plate voltage
- 300 V
- Max plate dissipation
- 2.5 W
- Max cathode current
- 13 mA
Representative row for two electrically identical triode sections.
Section 2
Triode
X-ray radiationInterelectrode capacitances
- Plate resistance
- 10900 Ω
- Transconductance
- 0.0055 S
- Amplification factor
- 60
- Max plate voltage
- 300 V
- Max plate dissipation
- 2.5 W
- Max cathode current
- 13 mA
Second physical triode section; added to align rows with SectionCount.
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
1959 Telefunken
Published operating points and test conditions from this source.
SECTION 1
Triode
Characteristic
Heater Voltage
6.3 V
Heater Current
300 mA