Power - Pentode (NOT beam) ·Pentode
Brimar companion designation to type 43, sharing its published power-pentode characteristics. Designed for AC/DC receiver audio-output service.
Explicit 43E companion designation on the Brimar 43/43E power-pentode sheet, sharing the same published characteristics.
Loctal 8-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
Promoted from 160 V operating point.
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
135 V
Point1
Plate Voltage
160 V
Point2
Plate Current
37 mA
Point1
Plate Current
33 mA
Point2
Screen Voltage
135 V
Point1
Screen Voltage
120 V
Point2
Power Output
2 W
Point1
Power Output
2.2 W
Point2
Plate Resistance
35000 ohm
Point1
Plate Resistance
42000 ohm
Point2
Transconductance
2450 µS
Point1
Transconductance
2400 µS
Point2
Data set 02
Published operating points and test conditions from this source.
Anode Voltage
160 V
Anode Current
33 mA
Screen Voltage
120 V
Screen Current
6.5 mA
Control Grid Voltage
-18 V
Optimum Load
5000 ohm
Power Output
2.2 W
ClassA