Power - Triode ·Triode
Duodecar pulse-regulator triode for high-voltage color-television power supplies.
Duodecar type used as a pulse-type regulator in the high-voltage power supply of color television receivers. Outlines section, 15F; requires duodecar 12-contact 12GY socket. Heater: volts (ac/dc), 6.
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.
1 physical section, each with unique specifications.
Section 1
Frame-grid beam triode; pulse regulator.
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.
Peak Plate Voltage
5500 V
PulseRegulator
Typical Pulse Plate Voltage
3500 V
PulseRegulator
Peak Plate Current
300 mA
PulseRegulator
Data set 02
Published operating points and test conditions from this source.
Pulse Plate Voltage*
3500 volts
Pulse Plate Voltage* 3500 volts
Grid-Voltage, Negative-bias value
4.4 volts
Grid-Voltage, Negative-bias value +200 4.4 volts
Peak Plate Current
300 mA
Peak Plate Current 300 mA
Amplification Factor
300
Amplification Factor 300
Transconductance
65000
Transconductance 65000 /xmhos
Plate Resistance (Approx.)
4600 ohms
Plate Resistance (Approx.) 4600 ohms
Grid Voltage (Approx.) for plate current of
13 mA
Grid Voltage (Approx.) for plate current of 1 mA - 13 volts
Peak Plate Voltage*
5500 volts
Peak Plate Voltage* 5500 volts
Peak Plate Current
325 mA
Peak Plate Current 325 mA
Grid-Circuit Resistance*
0.1 megohm
Grid-Circuit Resistance* 0.1 megohm
Grid No
2
Grid No.2 (Beam Plate) Connected to cathode at socket
Plate Dissipation
35 watts
Plate Dissipation 35 watts