Rectifier - TV Line Scan Boost ·Rectifier
Filamentary television flyback/EHT rectifier with exceptionally low filament voltage, designed to rectify horizontal-output pulses into the CRT accelerating supply.
1V2 is a high-voltage vacuum rectifier for television power-supply or flyback service. The supplied RCA manual excerpt was reviewed for heater data, physical sections, maximum ratings, electrical characteristics, capacitances, and stated operating conditions.
Small-button Noval 9-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
Pulsed high-voltage rectifier.
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.
Maximum inverse voltage
6600 V
TVFlyback; InverseVoltageDCComponent
Maximum DC output current
0.5 mA
TVFlyback; InverseVoltageDCComponent
Maximum peak current
10 mA
TVFlyback; InverseVoltageDCComponent
Forward voltage drop
135 V
TVFlyback; InverseVoltageDCComponent; At 7 mA DC
Data set 02
Published operating points and test conditions from this source.
Heater voltage
0.625 V
Nominal
Heater current
300 mA
Nominal
Data set 03
Published operating points and test conditions from this source.
Peak inverse voltage maximum
25000 V
FlybackRectifier
Average output current maximum
0.5 mA
FlybackRectifier
Application
Television high-voltage rectifier
Section1
Data set 04
Published operating points and test conditions from this source.
Heater/filament voltage
0.625 V
Heater/filament current
300 mA
Peak inverse plate voltage total DC plus peak
8250 V
PulsedRectifier
Maximum DC component of inverse plate voltage
6600 V
PulsedRectifier
Peak plate current
10 mA
PulsedRectifier
Average plate current
0.5 mA
PulsedRectifier
Application
High-voltage half-wave pulsed rectifier
TelevisionFlyback
Data set 05
Published operating points and test conditions from this source.
Filament Current
300 mA
Filament Current 0.3 ampere
Under no circumstances should the filament voltage be less than
0.525 V
Under no circumstances should the filament voltage be less than 0.525 volt or greater than
Peak Plate Current
11 mA
Peak Plate Current . . 11 mA
Average Plate Current
0.6 mA
Average Plate Current 0.6 mA
# Pulse duration must not exceed 15% of a horizontal scanning cycle (
10 us
# Pulse duration must not exceed 15% of a horizontal scanning cycle (10 microseconds).
Filament Voltage (ac)
1.25 V
Filament Voltage (ac) 1.25 volts
Filament Current
200 mA
Filament Current 0.2 ampere
Peak Plate Current
45 mA
Peak Plate Current 45 mA
Tube Voltage Drop for plate current of
7 mA
Tube Voltage Drop for plate current of 7 mA volts
Average output/plate current
0.6 mA
Published section value
Heater voltage
1.25 V
Rated heater condition
Heater current
200 mA
Rated heater condition