Data set 01
1968 General Electric Co
Published operating points and test conditions from this source.
SECTION 1
Rectifier
Characteristic
Heater Warm-up Time
11 s
Average
Rectifier - Damper Diode ·Rectifier
25CG3
Compactron half-wave vacuum rectifier designed as a damper diode in television horizontal-deflection circuits.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 1
- Base
- -
- Socket code
- B12C
- Base pins
- 12
- Nominal heater
- 25 V / 450 mA
Description
Half-wave vacuum rectifier used as a damper tube in television horizontal-deflection circuits.
Socket description
Duodecar 12-contact
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- -
- Socket code
- B12C
- Base pins
- 12
- Nominal heater voltage
- 25 V
- Nominal heater current
- 450 mA
- Parallel heater voltage
- -
- Parallel heater current
- -
- Series capable
- No
Terminal pinout
Electrical assignments shared by every tube using this base designation.
No verified pinout is recorded for this base designation.
Section ratings
1 physical section, each with unique specifications.
Section 1
Rectifier
X-ray radiationInterelectrode capacitances
- Max plate dissipation
- 6.5 W
- Rectifier peak inverse voltage
- 5500 V
- Rectifier nominal output current
- 350 mA
- Rectifier peak forward current
- 2.1 A
- Rectifier warm-up time
- 11 s
Reference/equivalence-only sparse-source exception: damping-diode ratings/characteristics not reproduced.
Source-dependent data
Operating conditions by source
Each block preserves the test conditions and published values from one reference. Values from different sources are intentionally kept separate.
Data set 02
1971 RCA HB3 Binder 5 of 7
Published operating points and test conditions from this source.
SECTION 1
Rectifier
Characteristics
Heater voltage
25 V
Nominal heater rating from supplied sheet
Heater current
450 mA
Nominal heater rating from supplied sheet
Warm-up time
11 s
Average warm-up time from supplied sheet
Data set 03
1975 RCA RC30
Published operating points and test conditions from this source.
SECTION 1
Rectifier
Other
Heater Warm-up Time —
11 s
Other;PublishedValue1
Heater Warm-up Time —
11 s
Other;PublishedValue2
Peak Inverse Plate Voltage*
5000 V
MaximumRating
Peak Plate Current
2100 mA
MaximumRating
Average Plate Current
300 mA
MaximumRating;PublishedValue1
Average Plate Current
350 mA
MaximumRating;PublishedValue2
Plate Dissipation
6.5 W
MaximumRating
Peak value
-5000 V
MaximumRating
Average value
100 V
MaximumRating;PublishedValue1
Average value
900 V
MaximumRating;PublishedValue2
Tube VoitAge Drop for plate current of
700 mA
MaximumRating;PublishedValue1
Tube VoitAge Drop for plate current of
25 mA
MaximumRating;PublishedValue2
Peak Inverse Plate Voltage
6000 V
Section1;Promoted