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Tube Substitutions for:
1J3
Half-Wave Vacuum Rectifier
TypeSubstitutesBase Diagram
1J31AU3, 1N2, 1K3, 1B3, 1G3, 1G3-GTA, 1K3-A
Web References1J3 (General Electric) @ Franks Electron Tubes
1J3 (Tung-Sol) @ Franks Electron Tubes
1J3 (RCA (RC30)) @ Franks Electron Tubes
1J3 @ RadioMuseum.org
Sylvania Type 1J3
HV HALF-WAVE RECTIFIER



MECHANICAL DATA

Bulb T-9
Outline2 9-51
9-52
Base1 B6-8
B6-60 Short Intermediate Shell Octal 6-Pin
Basing3 3C
Max Overall Length 4 1/16"
Seated Height 3 5/16"�3/16"
Cap C1-34
Cathode Coated Filament
Mounting Position Any


ELECTRICAL DATA


FILAMENT CHARACTERISTICS
Filament Voltage4 1.25 Volts
Filament Current 200 Ma

DIRECT INTERELECTRODE CAPACITANCES (Unshielded)
Plate to Filament and Internal Shield (approx.) 1.6 ��f

RATINGS (Design Maximum System)5
Flyback Voltage Rectifier6
Inverse Plate Voltage Total DC and Peak 26,000 Volts
Inverse Plate Voltage DC 22,000 Volts
Peak Plate Current 50 Ma
Average Plate Current 0.5 Ma

CHARACTERISTICS
Tube Drop for Ib = 7 Ma (approx.) 225 Volts

NOTES:

1 Bases B6-8 and B6-60, Pins 4 and 6 removed.
2 Outlines 9-51 and 9-53 apply with Short Intermediate Shell Octal Bases.
3 Socket terminals 1, 3, 4, 5, 6, and 8 may be connected to terminal 7 or to a corona shield which connects to terminal 7. Terminals 4 and 6 may be used as tie points for components at or near filament potential.
4 Under no circumstances should the filament voltage be less than 1.05 volts or more than 1.45 volts.
5 Design-Maximum Ratings are limiting values of operating and environmental conditions applicable to a bogey electron device of a specified type as defined by its published data, and should not be exceeded under worst probably conditions.
The device manufacturer chooses these values to provide acceptable serviceability of the device, taking responsibility for the effects of changes in operating conditions due to variations in device characteristics.
The equipment manufacturer should design so that initially and throughout life no design-maximum value for the intended service is exceeded with a bogy device under the worst probable operating conditions with respect to supply-voltage variation, equipment component variation, equipment control adjustment, load variation, signal variation, and environmental conditions.
6 For operation in a 525-line, 30-frame system as described in "Standards of Good Engineering Practice for Television Broadcast Stations; Federal Communications Commission," the duty cycle of the voltage pulse must not exceed 15% of one scanning cycle.

WARNING

X-ray radiation shield may be necessary to protect against possible danger of personal injury from prolonged exposure at close range if this tube is operated at higher than the manufacturers Maximum Rate Plate Voltage, or 16,000 volts, whichever is less.


APPLICATION

The Sylvania type 1J3 is a filamentary half-wave diode intended for service as the high voltage rectifier in television receivers and other high voltage rectifier operations.


Average Characteristics




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