Electronic tube and vacuum tube catalog

Compactron Damper Diode High Voltage Tube Pulse Rated TV Damper Diode

Base: 12BE
Socket code: B12C
Electrical Summary: Heater 12.6 V / 600 mA
Plate 5.3 W
Rectifier 165 mA
V Drop 32 V
V Inverse 5,000 V
Sections: 1

Heater	12.6 V / 600 mA
Plate	5.3 W
Rectifier	165 mA
V Drop	32 V
V Inverse	5,000 V

12 pins - B12C - Duodecar 12-contact

High-voltage television damper diode designed for horizontal-deflection circuits, with approximately 5 kV peak-inverse rating, high pulse current, and controlled heater warm-up.

Source PDFs (12)

12AX4GT

Damper Diode High Voltage Tube Pulse Rated TV Damper Diode

Base: —
Socket code: IO
Electrical Summary: Heater 12.6 V / 600 mA
Rectifier 125 mA
V Inverse 4,000 V
Sections: 1

Heater	12.6 V / 600 mA
Rectifier	125 mA
V Inverse	4,000 V

IO - International Octal

Half-wave vacuum rectifier designed primarily as a television horizontal-deflection damping diode, providing high inverse-voltage capability for sweep-circuit energy recovery.

Source PDFs (2)

12AX4GTA

Damper Diode Has Controlled Warmup High Voltage Tube Pulse Rated TV Damper Diode

Base: 4CG
Socket code: IO
Electrical Summary: Heater 12.6 V / 600 mA
Rectifier 125 mA
V Drop 32 V
V Inverse 4,400 V
Sections: 1

Heater	12.6 V / 600 mA
Rectifier	125 mA
V Drop	32 V
V Inverse	4,400 V

8 pins - IO - International Octal

Television horizontal-deflection damping diode with controlled heater warm-up, a heater-voltage variant of the corresponding 6AX4 family.

Source PDFs (2)

12AX4GTB

Damper Diode Has Controlled Warmup High Voltage Tube Pulse Rated TV Damper Diode

Base: 4CG
Socket code: —
Electrical Summary: Heater 12.6 V / 600 mA
Plate 5.3 W
Rectifier 165 mA
V Drop 32 V
V Inverse 5,000 V
Sections: 1

Heater	12.6 V / 600 mA
Plate	5.3 W
Rectifier	165 mA
V Drop	32 V
V Inverse	5,000 V

8 pins

High-voltage television horizontal-deflection damper diode with approximately 5 kV peak-inverse capability, high pulse current, and controlled heater warm-up.

Source PDFs (7)

12AY3

Damper Diode Has Controlled Warmup High Voltage Tube Pulse Rated TV Damper Diode

Base: 9HP
Socket code: Refer to variations
Electrical Summary: Heater 12.6 V / 600 mA
Sections: 1

Heater	12.6 V / 600 mA

9 pins

Variations:12BS3

12.6-volt heater variant of the 6AY3 half-wave vacuum rectifier, explicitly intended for television horizontal-deflection damper service.

Source PDFs (3)

12AY3A

Damper Diode Has Controlled Warmup High Voltage Tube Pulse Rated TV Damper Diode

Base: 9HP
Socket code: —
Electrical Summary: Heater 12.6 V / 600 mA
Rectifier 175 mA
V Drop 32 V
V Inverse 5,000 V
Sections: 1

Heater	12.6 V / 600 mA
Rectifier	175 mA
V Drop	32 V
V Inverse	5,000 V

9 pins

Novar half-wave vacuum rectifier designed as a damper tube in television horizontal-deflection circuits, with controlled warm-up and high inverse-voltage capability.

Source PDFs (4)

12B3

Base: —
Socket code: —
Electrical Summary: Heater 12.6 V / 600 mA
V Drop 32 V
V Inverse 4,400 V
Sections: 1

Heater	12.6 V / 600 mA
V Drop	32 V
V Inverse	4,400 V

9 pins

Canadian Westinghouse 12B3 indirectly heated television horizontal-deflection damper diode with 12.6 V 0.6 A heater, 4400 V peak inverse voltage and cathode top cap.

Source PDFs (1)

9999 Mixed 2000 (opens in a new tab)

12BE3

Compactron Damper Diode Has Controlled Warmup High Voltage Tube Pulse Rated TV Damper Diode

Base: 26E
Socket code: B9A
Electrical Summary: Heater 12.6 V / 600 mA
Plate 6.5 W
Rectifier 200 mA
V Drop 25 V
V Inverse 5,000 V
Sections: 1

Heater	12.6 V / 600 mA
Plate	6.5 W
Rectifier	200 mA
V Drop	25 V
V Inverse	5,000 V

12 pins - B9A - Small-button Noval 9-contact

High-voltage television damper diode for horizontal-deflection service, with approximately 5 kV peak-inverse capability and controlled heater warm-up.

Source PDFs (8)

12BE3A

Compactron Damper Diode Has Controlled Warmup High Voltage Tube Pulse Rated TV Damper Diode

Base: 12GA
Socket code: B9A
Electrical Summary: Heater 12.6 V / 600 mA
Plate 6.5 W
Rectifier 200 mA
V Inverse 5,000 V
Sections: 1

Heater	12.6 V / 600 mA
Plate	6.5 W
Rectifier	200 mA
V Inverse	5,000 V

12 pins - B9A - Small-button Noval 9-contact

Compactron single heater-cathode diode designed for television horizontal-deflection damper service, with high inverse-voltage capability and controlled heater warm-up.

Source PDFs (4)

12BR3

Base: E9-11
Socket code: B9A
Electrical Summary: Heater 12.6 V / 600 mA
Plate 6.5 W
Rectifier 200 mA
V Inverse 5,500 V
Sections: 1

Heater	12.6 V / 600 mA
Plate	6.5 W
Rectifier	200 mA
V Inverse	5,500 V

9 pins - B9A - Small-button Noval 9-contact

Variations:12AF3

Indirectly heated high-current television damper diode, electrically equivalent to 6BR3 except heater rating. Its controlled-warm-up construction is intended for horizontal-deflection energy-recovery service.

Source PDFs (0)

Refer to variations

12BS3

Damper Diode Has Controlled Warmup High Voltage Tube Pulse Rated TV Damper Diode

Base: Refer to variations
Socket code: Refer to variations
Electrical Summary: Heater 12.6 V / 600 mA
Sections: 1

Heater	12.6 V / 600 mA

Variations:12AY3

Half-wave vacuum rectifier designed for television horizontal-deflection damper service, supplied as a 12.6-volt-heater member of its damper-diode family.

Source PDFs (2)

12BS3A

Damper Diode Has Controlled Warmup High Voltage Tube Pulse Rated TV Damper Diode

Base: 9HP
Socket code: —
Electrical Summary: Heater 12.6 V / 600 mA
Plate 6 W
Rectifier 200 mA
V Drop 12 V
V Inverse 5,000 V
Sections: 1

Heater	12.6 V / 600 mA
Plate	6 W
Rectifier	200 mA
V Drop	12 V
V Inverse	5,000 V

9 pins

Novar half-wave vacuum rectifier designed as a television horizontal-deflection damper tube, with approximately 5 kV peak-inverse capability and controlled warm-up.

Source PDFs (4)

12BT3

Compactron Damper Diode High Voltage Tube Pulse Rated TV Damper Diode

Base: —
Socket code: B9A
Electrical Summary: Heater 12.6 V / 450 mA
Plate 5.3 W
V Inverse 3,300 V
Sections: 1

Heater	12.6 V / 450 mA
Plate	5.3 W
V Inverse	3,300 V

12 pins - B9A - Small-button Noval 9-contact

Compactron television damping diode designed for horizontal-deflection sweep-circuit service.

Source PDFs (4)

12CK3

Damper Diode Has Controlled Warmup High Voltage Tube Pulse Rated TV Damper Diode

Base: Refer to variations
Socket code: Refer to variations
Electrical Summary: Heater 12.6 V / 600 mA
Sections: 1

Heater	12.6 V / 600 mA

Variations:12CL3

Half-wave vacuum rectifier designed for black-and-white television horizontal-deflection damper service, using a 12.6-volt heater.

Source PDFs (4)

12CL3

Damper Diode High Voltage Tube Pulse Rated TV Damper Diode

Base: 9
Socket code: Refer to variations
Electrical Summary: Heater 12.6 V / 600 mA
Rectifier 200 mA
V Inverse 5,000 V
Sections: 1

Heater	12.6 V / 600 mA
Rectifier	200 mA
V Inverse	5,000 V

9 pins

Variations:12CK3

Half-wave vacuum rectifier designed as a damper tube in television horizontal-deflection circuits, recovering sweep energy while withstanding high inverse voltage.

Source PDFs (3)

12CT3

Damper Diode Has Controlled Warmup High Voltage Tube Pulse Rated TV Damper Diode

Base: —
Socket code: —
Electrical Summary: Heater 12.6 V / 600 mA
Plate 4.75 W
Rectifier 250 mA
V Drop 16 V
V Inverse 5,000 V
Sections: 1

Heater	12.6 V / 600 mA
Plate	4.75 W
Rectifier	250 mA
V Drop	16 V
V Inverse	5,000 V

9 pins

Half-wave vacuum rectifier designed as a damper tube in television horizontal-deflection circuits, explicitly documented as a heater variant of its corresponding family.

Source PDFs (3)

12D4

Damper Diode High Voltage Tube Pulse Rated TV Damper Diode

Base: Refer to variations
Socket code: B9A
Electrical Summary: Heater 12.6 V / 600 mA
Plate 5.5 W
Rectifier 125 mA
V Inverse 4,400 V
Sections: 1

Heater	12.6 V / 600 mA
Plate	5.5 W
Rectifier	125 mA
V Inverse	4,400 V

5 pins - B9A - Small-button Noval 9-contact

Variations:12DM4

Indirectly heated television damping diode and half-wave rectifier, explicitly documented as a heater-rating variant of the 6DA4 family.

Source PDFs (4)

12D4A

Damper Diode High Voltage Tube Pulse Rated TV Damper Diode

Base: —
Socket code: —
Electrical Summary: Heater 12.6 V / 600 mA
Plate 8 W
Rectifier 185 mA
V Drop 30 V
V Inverse 5,000 V
Sections: 1

Heater	12.6 V / 600 mA
Plate	8 W
Rectifier	185 mA
V Drop	30 V
V Inverse	5,000 V

9 pins

Indirectly heated diode designed for horizontal-frequency damper service, built to withstand the high-voltage pulses encountered in direct-drive television deflection circuits.

Source PDFs (4)

12DM4

Damper Diode High Voltage Tube Pulse Rated TV Damper Diode

Base: Refer to variations
Socket code: Refer to variations
Electrical Summary: Heater 12.6 V / 600 mA
Plate 6.5 W
Rectifier 175 mA
V Drop 35 V
V Inverse 5,000 V
Sections: 1

Heater	12.6 V / 600 mA
Plate	6.5 W
Rectifier	175 mA
V Drop	35 V
V Inverse	5,000 V

9 pins

Variations:12D4

Indirectly heated half-wave rectifier designed specifically as a television horizontal-deflection damper diode, with high inverse-voltage and pulse-current capability.

Source PDFs (5)

12DM4A

Damper Diode High Voltage Tube Pulse Rated TV Damper Diode

Base: —
Socket code: IO
Electrical Summary: Heater 12.6 V / 600 mA
Plate 6.5 W
Rectifier 200 mA
V Drop 35 V
V Inverse 5,000 V
Sections: 1

Heater	12.6 V / 600 mA
Plate	6.5 W
Rectifier	200 mA
V Drop	35 V
V Inverse	5,000 V

9 pins - IO - International Octal

Indirectly heated half-wave rectifier designed for television horizontal-deflection damper service, with high heater-cathode insulation and approximately 5 kV inverse-voltage capability.

Source PDFs (4)

12DW4A

Damper Diode Has Controlled Warmup High Voltage Tube Pulse Rated TV Damper Diode

Base: 9HP
Socket code: —
Electrical Summary: Heater 12.6 V / 600 mA
Plate 6 W
Rectifier 200 mA
V Drop 12 V
V Inverse 5,000 V
Sections: 1

Heater	12.6 V / 600 mA
Plate	6 W
Rectifier	200 mA
V Drop	12 V
V Inverse	5,000 V

9 pins

Novar half-wave vacuum rectifier designed as a damper tube in television horizontal-deflection circuits.

Source PDFs (3)

12GK17

Damper Diode High Voltage Tube Pulse Rated TV Damper Diode

Base: B5-85
Socket code: B12C
Electrical Summary: Heater 12.6 V / 600 mA
Rectifier 175 mA
V Inverse 4,500 V
Sections: 1

Heater	12.6 V / 600 mA
Rectifier	175 mA
V Inverse	4,500 V

8 pins - B12C - Duodecar 12-contact

High-perveance half-wave vacuum rectifier designed for television damper service, with controlled heater warm-up for series-string receiver operation.

Source PDFs (2)

16AQ3

High Voltage Tube Pulse Rated TV Booster Diode TV Booster Diode

Base: 9CB
Socket code: B9A
Electrical Summary: Heater 16.4 V / 600 mA
Plate 5 W
Rectifier 150 mA
V Inverse 5,000 V
Sections: 1

Heater	16.4 V / 600 mA
Plate	5 W
Rectifier	150 mA
V Inverse	5,000 V

9 pins - B9A - Small-button Noval 9-contact

Variations:XY88

Miniature high-voltage booster diode designed for line-time-base circuits of transformerless television receivers, with exceptionally high heater-cathode pulse-voltage capability.

Source PDFs (6)

17AX3

Compactron Damper Diode Has Controlled Warmup High Voltage Tube Pulse Rated TV Damper Diode

Base: 12BE
Socket code: B12C
Electrical Summary: Heater 16.8 V / 450 mA
Plate 5.3 W
Rectifier 165 mA
V Drop 32 V
V Inverse 5,000 V
Sections: 1

Heater	16.8 V / 450 mA
Plate	5.3 W
Rectifier	165 mA
V Drop	32 V
V Inverse	5,000 V

12 pins - B12C - Duodecar 12-contact

Half-wave vacuum rectifier designed for television horizontal-deflection damper service, with approximately 5 kV peak-inverse capability and controlled heater warm-up.

Source PDFs (11)

17AX4GT

Damper Diode Has Controlled Warmup High Voltage Tube Pulse Rated TV Damper Diode

Base: 4CG
Socket code: IO
Electrical Summary: Heater 16.8 V / 450 mA
Rectifier 125 mA
V Drop 32 V
V Inverse 5,000 V
Sections: 1

Heater	16.8 V / 450 mA
Rectifier	125 mA
V Drop	32 V
V Inverse	5,000 V

6 pins - IO - International Octal

High-voltage television horizontal-deflection damper diode with controlled heater warm-up and several-kilovolt peak-inverse capability.

Source PDFs (7)

17AX4GTA

Damper Diode Has Controlled Warmup High Voltage Tube Pulse Rated TV Damper Diode

Base: 4CG
Socket code: IO
Electrical Summary: Heater 16.8 V / 450 mA
Plate 5.3 W
Rectifier 165 mA
V Drop 32 V
V Inverse 5,000 V
Sections: 1

Heater	16.8 V / 450 mA
Plate	5.3 W
Rectifier	165 mA
V Drop	32 V
V Inverse	5,000 V

8 pins - IO - International Octal

Half-wave vacuum rectifier designed for television horizontal-deflection damper service, with high inverse-voltage and pulse-current ratings and controlled warm-up.

Source PDFs (7)

17AY3

Damper Diode Has Controlled Warmup High Voltage Tube Pulse Rated TV Damper Diode

Base: Refer to variations
Socket code: B9A
Electrical Summary: Heater 16.8 V / 450 mA
Sections: 1

Heater	16.8 V / 450 mA

9 pins - B9A - Small-button Noval 9-contact

Variations:17BS3

Half-wave vacuum rectifier designed for television damper service, explicitly a heater-voltage variant of the corresponding 6AY3 type with controlled warm-up.

Source PDFs (2)

17AY3A

Damper Diode Has Controlled Warmup High Voltage Tube Pulse Rated TV Damper Diode

Base: 9HP
Socket code: B9A
Electrical Summary: Heater 16.8 V / 450 mA
Plate 6.5 W
Rectifier 175 mA
V Drop 32 V
V Inverse 5,000 V
Sections: 1

Heater	16.8 V / 450 mA
Plate	6.5 W
Rectifier	175 mA
V Drop	32 V
V Inverse	5,000 V

9 pins - B9A - Small-button Noval 9-contact

Half-wave vacuum rectifier designed for television horizontal-deflection damper service, with approximately 5 kV peak-inverse capability and controlled heater warm-up.

Source PDFs (6)

17BE3

Compactron Damper Diode Has Controlled Warmup High Voltage Tube Pulse Rated TV Damper Diode

Base: 26E
Socket code: B9A
Electrical Summary: Heater 16.8 V / 450 mA
Plate 6.6 W
Rectifier 200 mA
V Drop 25 V
V Inverse 5,000 V
Sections: 1

Heater	16.8 V / 450 mA
Plate	6.6 W
Rectifier	200 mA
V Drop	25 V
V Inverse	5,000 V

12 pins - B9A - Small-button Noval 9-contact

Variations:17BZ3

Half-wave vacuum rectifier designed for television horizontal-deflection damper service, with approximately 5 kV inverse-voltage capability and high pulse current.

Source PDFs (8)

17BE3A

Compactron Damper Diode Has Controlled Warmup High Voltage Tube Pulse Rated TV Damper Diode

Base: —
Socket code: B9A
Electrical Summary: Heater 16.8 V / 450 mA
Plate 6.5 W
Rectifier 200 mA
V Drop 16 V
V Inverse 5,000 V
Sections: 1

Heater	16.8 V / 450 mA
Plate	6.5 W
Rectifier	200 mA
V Drop	16 V
V Inverse	5,000 V

12 pins - B9A - Small-button Noval 9-contact

Compactron single heater-cathode diode designed for television horizontal-deflection damping, electrically related to 6BE3A/12BE3A except for heater characteristics.

Source PDFs (4)

17BH3

Base: —
Socket code: —
Electrical Summary: Heater 17 V / 600 mA
Plate 6.5 W
Rectifier 180 mA
V Inverse 5,500 V
Sections: 1

Heater	17 V / 600 mA
Plate	6.5 W
Rectifier	180 mA
V Inverse	5,500 V

Source PDFs (1)

1970 Sylvania Technical Manual (opens in a new tab)

17BH3A

Damper Diode Has Controlled Warmup High Voltage Tube Pulse Rated TV Damper Diode

Base: 9HP
Socket code: B9A
Electrical Summary: Heater 17 V / 600 mA
Plate 6.8 W
Rectifier 180 mA
V Drop 32 V
V Inverse 5,500 V
Sections: 1

Heater	17 V / 600 mA
Plate	6.8 W
Rectifier	180 mA
V Drop	32 V
V Inverse	5,500 V

9 pins - B9A - Small-button Noval 9-contact

Half-wave vacuum rectifier designed for television damper service, explicitly a heater-voltage variant of the corresponding 6BH3A type with controlled warm-up.

Source PDFs (4)

17BR3

Base: E9-11
Socket code: B9E
Electrical Summary: Heater 14.8 V / 450 mA
Plate 6.5 W
Rectifier 200 mA
V Drop 19 V
V Inverse 5,500 V
Sections: 1

Heater	14.8 V / 450 mA
Plate	6.5 W
Rectifier	200 mA
V Drop	19 V
V Inverse	5,500 V

9 pins - B9E - Novar 9-contact

Variations:17RK19

Half-wave vacuum rectifier designed specifically for television horizontal-deflection damper service, with controlled heater warm-up for series-string receiver operation.

Source PDFs (2)

17BS3

Base: Refer to variations
Socket code: Refer to variations
Electrical Summary: Heater 16.8 V / 450 mA
Plate 6 W
Rectifier 200 mA
V Drop 12 V
V Inverse 5,000 V
Sections: 1

Heater	16.8 V / 450 mA
Plate	6 W
Rectifier	200 mA
V Drop	12 V
V Inverse	5,000 V

Variations:17AY3

Refer to variations

Source PDFs (1)

1970 Sylvania Technical Manual (opens in a new tab)

17BS3A

Base: 9HP
Socket code: B9A
Electrical Summary: Heater 16.8 V / 450 mA
Plate 6 W
Rectifier 200 mA
V Drop 12 V
V Inverse 5,000 V
Sections: 1

Heater	16.8 V / 450 mA
Plate	6 W
Rectifier	200 mA
V Drop	12 V
V Inverse	5,000 V

9 pins - B9A - Small-button Noval 9-contact

Novar half-wave vacuum rectifier designed as a damper diode in television horizontal-deflection circuits; heater variant of the corresponding 6-volt type.

Source PDFs (4)

17BW3

Base: 12FX
Socket code: B12C
Electrical Summary: Heater 16.8 V / 600 mA
Plate 6.5 W
Rectifier 175 mA
V Drop 32 V
V Inverse 5,000 V
Sections: 1

Heater	16.8 V / 600 mA
Plate	6.5 W
Rectifier	175 mA
V Drop	32 V
V Inverse	5,000 V

12 pins - B12C - Duodecar 12-contact

Half-wave vacuum rectifier designed for television horizontal-deflection damper service, handling the repetitive high-voltage pulses produced by the line-scan circuit.

Compactron Damper Diode

Source PDFs (2)

17BZ3

Base: 12GA
Socket code: B9A
Electrical Summary: Heater 16.8 V / 450 mA
Plate 6.6 W
Rectifier 200 mA
V Drop 26 V
V Inverse 5,000 V
Sections: 1

Heater	16.8 V / 450 mA
Plate	6.6 W
Rectifier	200 mA
V Drop	26 V
V Inverse	5,000 V

12 pins - B9A - Small-button Noval 9-contact

Variations:17BE3

Half-wave vacuum rectifier intended for television horizontal-deflection damper service, providing energy-recovery rectification in the line-scan circuit.

Compactron Damper Diode

Source PDFs (3)

17CK3

Base: —
Socket code: B9A
Electrical Summary: Heater 16.8 V / 450 mA
Sections: 1

Heater	16.8 V / 450 mA

9 pins - B9A - Small-button Noval 9-contact

Half-wave vacuum rectifier for television damper service, using controlled heater warm-up and heater characteristics suited to series-string receivers.

Source PDFs (3)

17CL3

Base: —
Socket code: —
Electrical Summary: Heater 16.8 V / 450 mA
Plate 8.5 W
Rectifier 250 mA
V Inverse 5,500 V
Sections: 1

Heater	16.8 V / 450 mA
Plate	8.5 W
Rectifier	250 mA
V Inverse	5,500 V

Source PDFs (1)

1970 Sylvania Technical Manual (opens in a new tab)

17CQ4

Damper Diode High Voltage Tube Pulse Rated

Base: —
Socket code: B7G
Electrical Summary: Heater 17 V / 600 mA
Rectifier 190 mA
V Inverse 5,500 V
Sections: 1

Heater	17 V / 600 mA
Rectifier	190 mA
V Inverse	5,500 V

B7G - Miniature 7-contact

High-voltage television damper diode with controlled heater warm-up, designed for horizontal-deflection energy-recovery service in series-string receivers.

Source PDFs (1)

1965 Westinghouse Data Book (opens in a new tab)

17CT3

Base: —
Socket code: B9A
Electrical Summary: Heater 16.8 V / 450 mA
Plate 4.75 W
Rectifier 250 mA
V Drop 16 V
V Inverse 5,000 V
Sections: 1

Heater	16.8 V / 450 mA
Plate	4.75 W
Rectifier	250 mA
V Drop	16 V
V Inverse	5,000 V

9 pins - B9A - Small-button Noval 9-contact

Half-wave vacuum rectifier used as a damper tube in television horizontal-deflection circuits, supplied as a heater-voltage variant of its 6-volt parent.

Source PDFs (4)

17D4

Base: Refer to variations
Socket code: B7G
Electrical Summary: Heater 16.8 V / 450 mA
Plate 5.5 W
Rectifier 155 mA
V Drop 22 V
V Inverse 4,400 V
Sections: 1

Heater	16.8 V / 450 mA
Plate	5.5 W
Rectifier	155 mA
V Drop	22 V
V Inverse	4,400 V

5 pins - B7G - Miniature 7-contact

Variations:17DM4

Indirectly heated half-wave rectifier designed for television horizontal-deflection damper service, electrically related to the 6DA4 apart from heater characteristics.

Source PDFs (6)

17D4A

Damper Diode High Voltage Tube Pulse Rated

Base: —
Socket code: B7G
Electrical Summary: Heater 16.8 V / 300 mA
Plate 8 W
Rectifier 185 mA
V Drop 30 V
V Inverse 6,000 V
Sections: 1

Heater	16.8 V / 300 mA
Plate	8 W
Rectifier	185 mA
V Drop	30 V
V Inverse	6,000 V

9 pins - B7G - Miniature 7-contact

High-voltage indirectly heated diode for television horizontal-frequency damper service, designed to withstand large cathode-to-heater and cathode-to-plate pulses in direct-drive circuits.

Source PDFs (4)

17DE4

Base: 4CG
Socket code: IO
Electrical Summary: Heater 17 V / 600 mA
Plate 6.5 W
Rectifier 180 mA
V Drop 34 V
V Inverse 6,500 V
Sections: 1

Heater	17 V / 600 mA
Plate	6.5 W
Rectifier	180 mA
V Drop	34 V
V Inverse	6,500 V

9 pins - IO - International Octal

Glass-octal half-wave vacuum rectifier designed as a damper diode in television horizontal-deflection circuits.

Source PDFs (7)

17DM4

Base: 4CG
Socket code: IO
Electrical Summary: Heater 16.8 V / 300 mA
Plate 6.5 W
Rectifier 175 mA
V Drop 35 V
V Inverse 6,000 V
Sections: 1

Heater	16.8 V / 300 mA
Plate	6.5 W
Rectifier	175 mA
V Drop	35 V
V Inverse	6,000 V

9 pins - IO - International Octal

Variations:17D4

Television damper diode designed for horizontal-deflection energy-recovery service, with high-voltage rectifier characteristics appropriate to line-scan circuits.

Source PDFs (4)

17DM4A

Base: 4CG
Socket code: IO
Electrical Summary: Heater 16.8 V / 450 mA
Plate 6.5 W
Rectifier 200 mA
V Drop 35 V
V Inverse 6,000 V
Sections: 1

Heater	16.8 V / 450 mA
Plate	6.5 W
Rectifier	200 mA
V Drop	35 V
V Inverse	6,000 V

9 pins - IO - International Octal

Glass-octal half-wave vacuum rectifier designed for television horizontal-deflection damper service.

Source PDFs (9)

17DQ4

Base: —
Socket code: —
Electrical Summary: Heater 16.8 V / 450 mA
Plate 6 W
Rectifier 175 mA
V Drop 32 V
V Inverse 5,500 V
Sections: 1

Heater	16.8 V / 450 mA
Plate	6 W
Rectifier	175 mA
V Drop	32 V
V Inverse	5,500 V

Source PDFs (1)

1970 Sylvania Technical Manual (opens in a new tab)

17DW4A

Base: 9HP
Socket code: B9E
Electrical Summary: Heater 16.8 V / 450 mA
Plate 6 W
Rectifier 200 mA
V Drop 12 V
V Inverse 5,000 V
Sections: 1

Heater	16.8 V / 450 mA
Plate	6 W
Rectifier	200 mA
V Drop	12 V
V Inverse	5,000 V

9 pins - B9E - Novar 9-contact

Novar half-wave vacuum rectifier used as a damper diode in television horizontal-deflection circuits.

Source PDFs (2)

17RK19

Base: Refer to variations
Socket code: B9A
Electrical Summary: Heater 16.8 V / 450 mA
Plate 6.5 W
Rectifier 200 mA
V Drop 19 V
V Inverse 5,500 V
Sections: 1

Heater	16.8 V / 450 mA
Plate	6.5 W
Rectifier	200 mA
V Drop	19 V
V Inverse	5,500 V

9 pins - B9A - Small-button Noval 9-contact

Variations:17BR3

Half-wave vacuum rectifier designed as a damper tube in television horizontal-deflection circuits, with ratings tailored to line-scan pulse operation.