Data set 01
1959 Telefunken
Published operating points and test conditions from this source.
SECTION 1
Diode
Application
Application
Signal detection
SECTION 2
Triode
Application
Application
AF amplification
Voltage - Triode (with diode, heptode or hexode) ·Diode-Triode
REN924
Telefunken diode-triode combining radio detection with subsequent audio-frequency amplification. The diode rectifies the received signal while the triode supplies the following voltage-amplifier stage, integrating two successive receiver functions.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 2
- Base
- -
- Socket code
- -
- Base pins
- -
- Nominal heater
- 4 V / 1 A
Description
Combined diode and triode for detection followed by audio amplification.
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
2 physical sections, each with unique specifications.
Section 1
Diode
X-ray radiationInterelectrode capacitances
No fixed ratings are recorded for this section.
Published historical Telefunken data promoted where legible; surrounding handbook text used only for the filename-designated tube.
Section 2
Triode
X-ray radiationInterelectrode capacitances
- Max plate voltage
- 200 V
Published historical Telefunken data promoted where legible; surrounding handbook text used only for the filename-designated tube.
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.