Data set 01
1959 Telefunken
Published operating points and test conditions from this source.
SECTION 1
Pentode
Application
Application
High-gain AF output
Power - Pentode Single (NOT beam) (under 10W) ·Pentode
RES964
Telefunken high-slope audio-frequency output pentode designed for high-volume loudspeaker service. Increased transconductance provides strong low-frequency output from a dedicated receiver power stage.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 1
- Base
- -
- Socket code
- -
- Base pins
- -
- Nominal heater
- 4 V / 1 A
Description
High-slope AF output pentode for high-volume loudspeaker service.
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
1 physical section, each with unique specifications.
Section 1
Pentode
X-ray radiationInterelectrode capacitances
- Transconductance
- 0.03 S
- Max plate voltage
- 250 V
- Max screen voltage
- 250 V
- Max plate dissipation
- 9 W
Published historical Telefunken data promoted where legible; filename-designated tube kept distinct from surrounding handbook entries.
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.