22BW3 GEC | Alldatasheet

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mscrome «ss PRODUCT INFORMATION — page 11487 : INNOVATIONS . C tron Diod : FOR TV DAMPING DIODE APPLICATIONS a ©@ DIFFUSION BONDED CATHODE @5000 VOLTS DC @ 175 MILLIAMPERES DC The 22BW3 is a compactron, single heater-cathode type diode intended for service as the damping diode in the horizontal deflection circuit of television receivers. The diffusion bonded cathode practically eliminates one of the major failure mechanisms in damping diodes, which is plate-to-cathode arcing caused by emissive particles being pulled from the cathode by the high electrostatic field. GENERAL ELECTRICAL MECHANICAL Cathode - Coated Unipotential Operating Position - Any Envelope - T-9, Glass Heater Characteristics and Ratings , Heater Warm-up Time, AverageS . . . 11 Seconds aamum Diameter ss rote . menes rect Interelectrode Capacitances, approximate™ Maximum Over-all Length. . . 2.875 Inches Cathode to Plate and Heater: k to (pt be ee ts 85 ie Minimum Seated Height 2.250 Inches Plate to Cathode and Heater: Bee es ee Heater to Cathode: (h tok) . . 3.8 p£ MAXIMUM RATINGS Design-Maximum ratings are limiting values of operating The equipment manufacturer should design so that initially and environmental conditions applicable to a bogey electron and _ throughout life no design-maximum value for the tube fe jPecifed type i defined by its published data intended service is exceeded with a bogey tube under the cditiom ne eeeaee Under Me worst Provan’? worst probable operating conditions with respect to supply- The tube manufacturer chooses these valves to provide Voltage variation, equipment component variation, equip- acceptable serviceability of the tube, making allowance ent control adjustment, load variation, signal variation, for the effects of changes in operating conditions due to var- environmental conditions, and variations in the characteristics iations in the characteristics of the tube under consideration. _ of all other electron devices in the equipment. PHYSICAL DIMENSIONS TERMINAL CONNECTIONS BASING DIAGRAM 1.188" MAX. Pin 1 - Heater 1¢ .062"MIN. Pin 2 ~ No Connection 1 Ic Pin 3 - No Connection (6) (7) Pin 4 - Plate (5) (B)ic Pin 5 ~ Internal Connection - Do Not Use (4) (9) . 2.500"max, Pin 6 - Internal Connection - 2.875 19 2.250"MIN, Do Not Use (3) “ax Pin 7 - Cathode Pin 8 - Internal Connection ~ Do Not Use (2) (i!) Pin 9 = Internal Connection - (1) wy Do Not Use UDG ead Pin 10 - Plate RIA 12Fx Pin 11 - No Connection BIA 9-60 Pin 12 - Heater Supersedes 22BW3 D and R Sheet aated 12-63

MAXIMUM RATINGS (Cont'd) TV DAMPER SERVICE#—DESIGN-MAXIMUM VALUES Peak Inverse Plate Voltage. . . . «© s© 6 © © © © © e© © © © © © © «= 5000 Volts Plate Dissipation. «© 2. 1 6 6 6 6 ee ee ee ee ee ee ee 66S Watts Steady-State Peak Plate Current . . 1. 1 1 ee ee ee ee ee ee + 1100 Milliamperes DC Output Current. © - ee ee eee ee ee ee ee ee ee 1S Milliamperes Heater-Cathode Voltage Heater Positive with Respect to Cathode DC Component. «6 ee ee ee ee ee ee ee eee we 100 Volts Total DC and Peak. . . 1 we ew ew ew ee ee ee ee 300 Volts Heater Negative with Respect to Cathode DC Component. 2. - 2 6 ee ew ee ee eee ee ee ee ee 900 Volts Total DC and Peak... ew ee ee ee ee eee ee eee + 5000 Volts AVERAGE CHARACTERISTICS Tube Voltage Drop NOTES * Heater voltage for a bogey tube at If = 0.45 amperes. + The equipment designer should design the equipment so that heater current is centered at the specified bogey value, with heater supply variations restricted to maintain heater current within the specified tolerance. § The time required for the voltage across the heater to reach 80 percent of the bogey value after applying 4 times the bogey heater voltage to a circuit consisting of the tube heater in series with a resistance equal to 3 times the bogey heater voltage divided by the bogey heater current. 4 = Without external shield. # For operation in a 525-line, 30-frame television system as described in "Standards of Good Engineering Practice Concerning Television Broadcast Stations", Federal Communications Commission, The duty cycle of the voltage pulse must not exceed 15 percent of one scanning cycle. AVERAGE PLATE CHARACTERISTICS CoCCCLELE ELLE Coy) EERE CECE EEE eae HEE EEE Eee COO ew ECE z | Perey tte er TUBE DEPARTMENT PEEEEEEEEEES Ae EEE VEER EHEC CECE GENERAL @® ELECTRIC HB (ETT Tt yy LA oO b Fw Pee Pee wensboro, Kentucky Se00057 Geeeeneeeene ,eeee7 4anee Cleo COCRACC CEE EEE EE rer (>_ dene