Voltage Pentode - Remote Cutoff (single) ·Pentode
Variable-mu remote-cutoff RF pentode designed for gain-controlled high-frequency amplification with a broad automatic-volume-control range.
Variable-slope pentode intended for high-frequency amplification.
Small 5-contact
General specifications
Properties common to every published source and operating point.
Electrical assignments shared by every tube using this base designation.
No verified pinout is recorded for this base designation.
1 physical section, each with unique specifications.
Section 1
Explicit co-designation/electrically identical designation on 39 source.
Source-dependent data
Each block preserves the test conditions and published values from one reference. Values from different sources are intentionally kept separate.
Data set 01
Published operating points and test conditions from this source.
Plate Voltage
250 V
ClassA
Screen Voltage
90 V
ClassA
Grid Voltage
-3 V
ClassA
Plate Current
5.8 mA
ClassA
Screen Current
1.4 mA
ClassA
Data set 02
Published operating points and test conditions from this source.
Heater or filament voltage
6.3 V
Published nominal value
Heater or filament current
300 mA
Published nominal value
Transconductance
1050 µS
Published representative/high operating value
Amplification factor
1050
Published representative/high operating value
Plate resistance
1000000 ohm
Published representative/high operating value
Remote-cutoff transconductance
2 µS
At -42.5 V bias
Application
RF amplifier; IF amplifier; mixer
Published use
Data set 03
Published operating points and test conditions from this source.
Plate Voltage
250 V
ClassA
Screen Voltage
90 V
ClassA
Grid Voltage
-3 V
ClassA
Plate Current
5.8 mA
ClassA
Screen Current
1.4 mA
ClassA
Data set 04
Published operating points and test conditions from this source.
Plate voltage
250 V
ClassA
Screen voltage
90 V
ClassA
Plate current
5.8 mA
ClassA
Transconductance
1050 uS
ClassA
Control grid voltage for transconductance 2 uS
-42.5 V
RemoteCutoff