Data set 01
195X Tunsgram
Published operating points and test conditions from this source.
SECTION 1
Pentode
Characteristics
Heater or filament voltage
2 V
Published nominal value
Heater or filament current
50 mA
Published nominal value
Voltage Pentode - Remote Cutoff (single) ·Pentode
TKF3
Directly heated variable-mu battery pentode for RF and IF amplification in portable receivers.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 1
- Base
- -
- Socket code
- B5
- Base pins
- 5
- Nominal heater
- 2 V / 50 mA
Description
Battery high-frequency variable-mu pentode intended for RF and IF amplifier service in portable receivers.
Socket description
European 5-pin base
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- -
- Socket code
- B5
- Base pins
- 5
- Nominal heater voltage
- 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
1 physical section, each with unique specifications.
Section 1
Pentode
X-ray radiationInterelectrode capacitances
No fixed ratings are recorded for this section.
Published ratings and characteristics promoted where clearly stated; repeated identical sections compressed where applicable.
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.