Alternatives & variations Download PDF datasheet

6CG3

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

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: 12GK
Socket code: B9A
Base pins: 12
Nominal heater: 6.3 V / 1.8 A

Description

Half-wave vacuum rectifier used as a damper tube in television horizontal-deflection circuits. It is an explicit heater variant/co-designation in 25CG3.pdf.

Socket description

Small-button Noval 9-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: 12GK
Socket code: B9A
Base pins: 12
Nominal heater voltage: 6.3 V
Nominal heater current: 1.8 A
Parallel heater voltage: -
Parallel heater current: -
Series capable: No

12GK - 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: 9 W
Rectifier peak inverse voltage: 5000 V
Rectifier nominal output current: 350 mA
Rectifier peak forward current: 2.1 A
Rectifier forward voltage drop: 25 V
Rectifier max heater-cathode voltage: 5000 V
Rectifier warm-up time: 11 s

TV damper

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 01

1971 RCA HB3 Binder 4 of 7

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Characteristics

Plate to cathode and heater. c p(k+h) ]
3 pF
Cathode to plate and heater. c
16 pF
Heater to cathode
4 pF
plate current (ib) =
700 mA
Published table column 1 of 2
plate current (ib) =
25 mA
Published table column 2 of 2
Instantaneous Tube Voltage Drop
25 V
At 700 mA instantaneous plate current

Other

Peak ibm
2100 mA
Averages
350 mA

Data set 02

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