Data set 01
1932 Cunningham Radio Tubes
Published operating points and test conditions from this source.
SECTION 1
Pentode
Other
Grid-plate capacitance
0.01 pF
Published direct interelectrode capacitance
Voltage Pentode - Remote Cutoff (single) ·Pentode
58
Remote- or semi-remote-cutoff pentode designed for RF, IF, variable-mu, or controlled-gain amplifier service.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 1
- Base
- A6-7
- Socket code
- UX6
- Base pins
- 6
- Nominal heater
- 2.5 V / 1 A
Description
58 is documented by Raytheon as a Pentode device. Remote-cutoff pentode high-frequency amplifier or mixer. Published ratings, characteristics, capacitances, and representative operating conditions were preserved where applicable.
Socket description
Small 6-contact
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- A6-7
- Socket code
- UX6
- Base pins
- 6
- Nominal heater voltage
- 2.5 V
- Nominal heater current
- 1 A
- Parallel heater voltage
- -
- Parallel heater current
- -
- Series capable
- No
A6-7 - 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
- Plate resistance
- 800000 Ω
- Transconductance
- 0.0016 S
- Max plate voltage
- 330 V
- Max screen voltage
- 110 V
- Max plate dissipation
- 2.5 W
- Max screen dissipation
- 0.28 W
Absolute maxima and 250-V Class-A characteristics promoted.
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
1937 Raytheon Radio Receiving Tubes
Published operating points and test conditions from this source.
SECTION 1
Pentode
Capacitance
Grid-to-plate capacitance
- to 0.007 pF
WithTubeShield; Maximum
Input capacitance
5 pF
Output capacitance
6.5 pF
Other
Plate voltage
100 V
ClassA
Screen voltage
100 V
ClassA; PlateVoltage=100V
Grid bias
-3 V
ClassA; PlateVoltage=100V
Plate current
8 mA
ClassA; PlateVoltage=100V
Screen current
2.2 mA
ClassA; PlateVoltage=100V
Plate voltage
250 V
ClassA
Screen voltage
100 V
ClassA; PlateVoltage=250V
Grid bias
-3 V
ClassA; PlateVoltage=250V
Plate current
8.2 mA
ClassA; PlateVoltage=250V
Screen current
2 mA
ClassA; PlateVoltage=250V
Grid bias
-10 V
Mixer; Superheterodyne
Characteristic
Amplification factor
375
ClassA; PlateVoltage=100V
Plate resistance
0.25 MOhm
ClassA; PlateVoltage=100V
Transconductance
1500 uS
ClassA; PlateVoltage=100V
Amplification factor
1280
ClassA; PlateVoltage=250V
Plate resistance
0.8 MOhm
ClassA; PlateVoltage=250V
Transconductance
1600 uS
ClassA; PlateVoltage=250V
Data set 03
193X Cunningham
Published operating points and test conditions from this source.
SECTION 1
Pentode
Characteristics
Heater/filament voltage
2.5 V
Published nominal
Heater/filament current
1 A
Published nominal
Transconductance
1300 uS
Published characteristic
Data set 04
1940 RCA
Published operating points and test conditions from this source.
SECTION 1
Pentode
Application
Application
RF_IF_Amplifier text
Data set 05
1950 Sylvania
Published operating points and test conditions from this source.
SECTION 1
Pentode
Other
Heater Voltage
2.5 V
Heater Current
1 A
Data set 06
195X General Electric Essential Characteristics
Published operating points and test conditions from this source.
SECTION 1
Pentode
Other
Plate voltage
250 V
ClassA
Screen-grid voltage
100 V
ClassA
Grid voltage
-3 V
ClassA
Plate current
8.2 mA
ClassA
Screen-grid current
2 mA
ClassA
Characteristic
Plate resistance
800000 ohm
Transconductance
1600 uS
Data set 07
1968 General Electric Co
Published operating points and test conditions from this source.
SECTION 1
Pentode
Other
Plate Voltage
250 V
ClassA
Screen Voltage
100 V
ClassA
Characteristic
Plate Current
8.2 mA
ClassA