Voltage Triode Pentode ·Pentode-Triode
Compactron triode and frame-grid pentode combination for electronic signal service.
The 9AH9 is a Compactron containing a medium-mu triode and a sharp-cutoff frame-grid pentode; the pentode is intended primarily for video amplifier service and the triode for color blanker or general-purpose use in color television receivers. Except for heater characteristics and ratings, it is identical to the 6AH9.
Duodecar 12-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.
2 physical sections, each with unique specifications.
Section 1
No fixed ratings are recorded for this section.
Medium-mu triode. Uploaded sheet is reference/equivalence-only: identical to 6AH9 except heater characteristics/ratings; electrical tables not reproduced, so promoted values were not inferred.
Section 2
No fixed ratings are recorded for this section.
Sharp-cutoff frame-grid pentode. Uploaded sheet is reference/equivalence-only: identical to 6AH9 except heater characteristics/ratings; electrical tables not reproduced, so promoted values were not inferred.
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.
Heater Voltage AC or DCx
8.8 V
GENERAL
Heater Curment 0 6+
40 mA
GENERAL
Heater Warm-up Time average
1 s
GENERAL
Heater voltage for a bogey tube at If
600 mA
GENERAL
The time required for the voltage across the heater to reach
80 %
GENERAL