Data set 01
1959 Telefunken
Published operating points and test conditions from this source.
SECTION 2
Pentode
Characteristics
Plate Voltage
120 V
Screen Voltage
60 V
Plate Current
1.4 mA
Screen Current
0.2 mA
Transconductance
600 uS
Voltage Radio Detector Converter ·Diode-Pentode
DAF11
Directly heated battery diode-pentode combining detector and AGC rectification with audio-frequency voltage amplification. Its economical 1.2 V, 50 mA filament and high-resistance pentode make it well suited to portable radio receivers.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 2
- Base
- -
- Socket code
- -
- Base pins
- -
- Nominal heater
- 1.2 V / 50 mA
Description
The Telefunken DAF11 is a directly heated battery diode-pentode combining a detector/AGC diode with an AF amplifier pentode.
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
- 1.2 V
- Nominal heater current
- 50 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.
Detector diode section.
Section 2
Pentode
X-ray radiationInterelectrode capacitances
- Plate resistance
- 900000 Ω
- Transconductance
- 0.0006 S
- Max plate voltage
- 150 V
- Max screen voltage
- 150 V
AF amplifier pentode 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.