Power - Pentode (NOT beam) ·Diode-Diode-Pentode
Combination double-diode output pentode integrating detector or AVC diode functions with an audio power-output pentode.
Double-diode output pentode combining two detector diodes with an audio-output 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.
3 physical sections, each with unique specifications.
Section 1
Two similar diode sections; represented once under identical-section compression.
Section 2
No fixed ratings are recorded for this section.
Output-pentode section; source OCR preserves limiting table incompletely, so only legible additional values are retained as parameters.
Section 3
No fixed ratings are recorded for this section.
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.
Diode anode voltage maximum
200 V
Diode current maximum
0.8 mA
Heater-cathode voltage maximum
175 V
Heater-cathode resistance maximum
5000 ohm
Grid-current onset range
-0.3 to -0.8 V
Application
Audio output pentode