Data set 01
1959 Telefunken
Published operating points and test conditions from this source.
SECTION 1
Diode
Characteristic
Heater Voltage
6.3 V
Heater Current
300 mA
SECTION 2
Pentode
Characteristic
CutoffCharacteristic
Remote cutoff
RF/IF
Voltage Radio Detector Converter ·Diode-Pentode
EAF801
Telefunken diode-pentode for receiver detection and controlled RF/IF amplification. Its remote-cutoff pentode permits progressive gain control while the separate diode provides detector or control-voltage rectification.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 2
- Base
- -
- Socket code
- B9A
- Base pins
- 9
- Nominal heater
- 6.3 V / 300 mA
Description
Remote-cutoff RF/IF pentode combined with a diode, suitable for parallel or series heater operation.
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
- 6.3 V
- Nominal heater current
- 300 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
2 physical sections, each with unique specifications.
Section 1
Diode
X-ray radiationInterelectrode capacitances
No fixed ratings are recorded for this section.
Published Telefunken ratings and characteristics promoted from the supplied source.
Section 2
Pentode
X-ray radiationInterelectrode capacitances
No fixed ratings are recorded for this section.
Published Telefunken 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.