Voltage Pentode - Remote Cutoff (single) ·Pentode
Super-control RF amplifier pentode. Its manufacturer designation identifies an extended-control characteristic intended for variable-gain radio-frequency amplification, making automatic gain control a central part of its receiver application.
Super-control R.F. amplifier pentode.
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
Amalgamated Wireless Radiotron 1M5-G directly heated super-control remote-cutoff RF amplifier pentode, 2.0 V DC filament, 120 mA. Printed manufacturer design limits anode 180 V, screen 90 V, screen-supply 180 V, anode dissipation 0.5 W, screen dissipation 0.1 W. Typical at plate 135 V, screen 67.5 V, grid 0 V: anode current ~2.5 mA, screen current 0.9 mA, transconductance 1000 µmhos (0.001 S), plate resistance 0.8 MΩ. Other typical 135 V operating points use screen 30/45/90 V, gm 600/780/700 µmhos; values vary with bias. Published capacitances: grid-plate 0.010 pF, input 6 pF, output 9.5 pF. Manufacturer original confirms 2 V 0.12 A despite prior database 1.4 V 0.05 A.
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.
Grid-to-plate capacitance
0.01 pF
Direct interelectrode capacitance
Input capacitance
6 pF
Direct interelectrode capacitance
Output capacitance
9.5 pF
Direct interelectrode capacitance