Power - Triode ·Triode-Triode
Dissimilar dual triode, electrically equivalent to 6FY7/15FY7 apart from heater characteristics, combining a high-mu section with a low-mu, pulse-capable power output section.
Duodecar dual triode combining an oscillator section and a low-mu power section for vertical-deflection service.
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
Oscillator section. Source is a product-information/reference sheet and does not print the referenced base tube's section ratings/characteristics; promoted fields intentionally not inferred from an external datasheet.
Section 2
Vertical-deflection amplifier section. Source is a product-information/reference sheet and does not print the referenced base tube's section ratings/characteristics; promoted fields intentionally not inferred from an external datasheet.
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
250 V
ClassA
Grid voltage
-3 V
ClassA
Plate current
1.4 mA
ClassA
Average cathode current
20 mA
VerticalDeflection
Plate voltage
150 V
ClassA
Grid voltage
-17.5 V
ClassA
Plate current
35 mA
ClassA
Peak positive-pulse plate voltage
2000 V
VerticalDeflection
Average cathode current
50 mA
VerticalDeflection