Data set 01
195X Tesla
Published operating points and test conditions from this source.
SECTION 1
Pentode
Characteristic
Plate voltage
120 V
Screen voltage
120 V
Capacitance
Input capacitance
4.5 pF
Output capacitance
2.5 pF
Voltage Pentode or Tetrode (with diode) ·Diode-Pentode
6F33
High-frequency pentode with auxiliary diode for controlled amplification, mixing, variable-reactance, modulator, and timing applications at HF through UHF.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 2
- Base
- B7G
- Socket code
- B7G
- Base pins
- 7
- Nominal heater
- 6.3 V / 350 mA
Description
TESLA 6F33 is an indirectly heated high-frequency pentode intended at high and ultra-high frequencies as a controlled amplifier, input amplifier, mixer and similar service.
Socket description
Miniature 7-contact
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- B7G
- Socket code
- B7G
- Base pins
- 7
- Nominal heater voltage
- 6.3 V
- Nominal heater current
- 350 mA
- Parallel heater voltage
- -
- Parallel heater current
- -
- Series capable
- No
B7G - 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
Pentode
X-ray radiationInterelectrode capacitances
- Transconductance
- 0.00435 S
- Amplification factor
- 38
- Max plate voltage
- 250 V
- Max screen voltage
- 250 V
- Max plate dissipation
- 2.5 W
- Max screen dissipation
- 0.8 W
- Max cathode current
- 18 mA
Electrical section mapped from published characteristics and maximum ratings.
Section 2
Diode
X-ray radiationInterelectrode capacitances
No fixed ratings are recorded for this section.
Diode tied to suppressor grid per source; no separate electrical ratings published.
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
1960 Mazda
Published operating points and test conditions from this source.
SECTION 1
Pentode
Other
Maximum Heater Cathode Voltage
100 V
Capacitance
Anode Earth Capacitance
4.5 pF
Anode Control Grid Capacitance
0.01 pF
ControlGridEarthCapacitance
7.3 pF
SuppressorGridEarthCapacitance
10 pF
Data set 03
1961 AEI Industrial Valves
Published operating points and test conditions from this source.
SECTION 1
Pentode
Other
Maximum Heater Cathode Voltage
100 V
DC
Characteristics
Anode Earth Capacitance
4.5 pF
Anode Control Grid Capacitance
0.01 pF
ControlGridEarthCapacitance
7.3 pF
Data set 04
1961 Associated Electrical Industries
Published operating points and test conditions from this source.
SECTION 1
Pentode
Other
Maximum Heater Cathode Voltage
100 V
DC
Characteristics
Anode Earth Capacitance
4.5 pF
Anode Control Grid Capacitance
0.01 pF
ControlGridEarthCapacitance
7.3 pF