Data set 01
1937 Osram Valves
Published operating points and test conditions from this source.
SECTION 1
Tetrode
Other
Heater Voltage
2 V
Published datasheet value
Voltage Tetrode ·Tetrode
S24
Two-volt screen-grid high-frequency amplifier for battery receivers, combining high mutual conductance with low grid-anode capacitance to provide substantial stage gain from economical filament power.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 1
- Base
- -
- Socket code
- B4
- Base pins
- 4
- Nominal heater
- 2 V / -
Description
A 2-volt screen-grid high-frequency amplifying valve with high mutual conductance and low grid-anode leakage capacity, intended to provide considerable stage gain in battery receivers.
Socket description
European 4-pin base
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- -
- Socket code
- B4
- Base pins
- 4
- Nominal heater voltage
- 2 V
- Nominal heater current
- -
- 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
Tetrode
X-ray radiationInterelectrode capacitances
No fixed ratings are recorded for this section.
Sparse-source exception: the approved S24 sheet gives descriptive data and characteristic curves but no separate tabulated electrical ratings beyond the stated 2 V heater; no values imported from another datasheet.
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.