Data set 01
1937 Osram Valves
Published operating points and test conditions from this source.
SECTION 1
Diode
Characteristics
Heater/filament current
2.3 A
Mutual conductance
32000 uS
Other
Maximum anode voltage
250 V
Diode (NOT rectifier) ·Diode
DN41
Osram diode intended for radio signal detection and rectification, providing a thermionic detector element for early receiving equipment.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 1
- Base
- -
- Socket code
- B7
- Base pins
- 7
- Nominal heater
- 4 V / 2.3 A
Description
DN41: OSRAM diode valve. The complete approved OSRAM sheet was read for construction, characteristics, operating data, and application guidance.
Socket description
Medium 7-contact
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- -
- Socket code
- B7
- Base pins
- 7
- Nominal heater voltage
- 4 V
- Nominal heater current
- 2.3 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
Diode
X-ray radiationInterelectrode capacitances
- Transconductance
- 0.01 S
- Max plate voltage
- 250 V
Published characteristics promoted where reliably identified; additional source values retained below.
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
193X Osram
Published operating points and test conditions from this source.
SECTION 1
Diode
Characteristics
Mutual conductance
10000 uS