Voltage Pentode - Sharp Cutoff (single) ·Pentode
Receiving pentode with an unusual 18 V heater for small-signal amplification in higher-voltage, lower-current heater systems.
An 18 V, 0.24 A receiving pentode with a 220 V operating point, 4.1 mA/V transconductance and 3 W maximum anode dissipation.
European 8-pin side-contact base
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
Published ratings and characteristics promoted from the approved 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.
Anode voltage
220 V
Screen-grid voltage
200 V
Cathode resistance
140 Ω
Anode current
14 mA
Screen-grid current
3.5 mA
Cold anode voltage maximum
400 V
Cold screen-grid voltage maximum
400 V
Grid leak resistance maximum
300 kΩ
Grid-anode capacitance
6 mpF