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Voltage Radio Detector Converter ·Pentode-Triode

6HB7

Miniature triode-pentode used as a combined oscillator and mixer in color and black-and-white television receivers.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 2
Base: 9QA
Socket code: B9A
Base pins: 9
Nominal heater: 6.3 V / 450 mA

Description

Miniature type used as combined oscillator and mixer B (T//-L- tube in color and black-and-white television receivers G ip utilizing an intermediate frequency in the order of 40 MHz. Outlines section, 6B; requires miniature 9- k,G3 ,is contact socket. Type 5HB7 is identical with type 6HB7 p except for heater ratings. 9QA 5HB7 6HB7 Heater Voltage (ac/dc) 4.

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: 9QA
Socket code: B9A
Base pins: 9
Nominal heater voltage: 6.3 V
Nominal heater current: 450 mA
Parallel heater voltage: -
Parallel heater current: -
Series capable: No

9QA - Terminal pinout

Electrical assignments shared by every tube using this base designation.

No verified pinout is recorded for this base designation.

Section ratings

2 physical sections, each with unique specifications.

Section 1

Triode

X-ray radiationInterelectrode capacitances

Plate resistance: 5000 Ω
Transconductance: 0.0085 S
Amplification factor: 40
Max plate voltage: 330 V
Max screen voltage: 330 V
Max plate dissipation: 2.5 W

Published maximum ratings and characteristic values promoted where applicable; additional table values retained in TUBE_SECTION_PARAMETER.

Section 2

Pentode

X-ray radiationInterelectrode capacitances

Plate resistance: 200000 Ω
Transconductance: 0.0064 S
Max plate voltage: 330 V
Max screen voltage: 330 V
Max plate dissipation: 3.1 W
Max screen dissipation: 0.55 W

Published maximum ratings and characteristic values promoted where applicable; additional table values retained in TUBE_SECTION_PARAMETER.

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

1964 RMA EIA

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristic

Heater Voltage
6.3 V
Heater Current
450 mA
TriodeGridToPlateCapacitance
1.9 pF
Triode Input Capacitance
3 pF
TriodeOutputCapacitance
1.9 pF
TriodeTransconductance
8500 uS
TriodePlateResistance
5000 ohm

Other

TriodePlateVoltage
150 V
ClassA
TriodePlateCurrent
18 mA
ClassA

SECTION 2

Pentode

Characteristic

PentodeGridToPlateCapacitanceMaximum
0.01 pF
Pentode Input Capacitance
5 pF
Pentode Output Capacitance
3.4 pF
PentodeTransconductance
6400 uS
PentodePlateResistance
200000 ohm

Other

PentodePlateVoltage
125 V
ClassA
PentodeScreenVoltage
125 V
ClassA
PentodePlateCurrent
12 mA
ClassA
PentodeScreenCurrent
4 mA
ClassA

Data set 02

1965 Sylvania Electronic Tubes Vol3

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristic

Plate resistance
5000 ohm
Transconductance
8500 uS

Other

Maximum plate voltage
330 V
Maximum plate dissipation
2.5 W
Heater voltage
6.3 V
Heater current
450 mA
Typical plate current
18 mA

SECTION 2

Pentode

Characteristic

Plate resistance
200000 ohm
Transconductance
6400 uS

Other

Maximum plate voltage
330 V
Maximum plate dissipation
3.1 W
Heater voltage
6.3 V
Heater current
450 mA
Typical plate current
12 mA
Typical screen-grid current
4 mA

Data set 03

1971 RCA HB3 Binder 5 of 7

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

Plate voltage
150 V
ClassA
Plate current
18 mA
ClassA
Maximum plate voltage
330 V
respect to cathode
200 V
Published datasheet value; multiple values on one source row represent separate limits or operating conditions.
respect to cathode
200
Published datasheet value; multiple values on one source row represent separate limits or operating conditions.
Plate Voltage — published value 1
330 V
Published datasheet value; multiple values on one source row represent separate limits or operating conditions.
Plate Voltage — published value 2
330 V
Published datasheet value; multiple values on one source row represent separate limits or operating conditions.
Supply Voltage
330 V
Published datasheet value; multiple values on one source row represent separate limits or operating conditions.
Positive-bias value — published value 1
0 V
Published datasheet value; multiple values on one source row represent separate limits or operating conditions.
Positive-bias value — published value 2
0 V
Published datasheet value; multiple values on one source row represent separate limits or operating conditions.
Plate Dissipation — published value 1
2 mA
Published datasheet value; multiple values on one source row represent separate limits or operating conditions.
Plate Dissipation — published value 2
5 mA
Published datasheet value; multiple values on one source row represent separate limits or operating conditions.
Plate Dissipation — published value 3
3.1 mA
Published datasheet value; multiple values on one source row represent separate limits or operating conditions.
For fixed-bias operation — published value 1
0.5 mA
Published datasheet value; multiple values on one source row represent separate limits or operating conditions.
For fixed-bias operation — published value 2
0.25 mA
Published datasheet value; multiple values on one source row represent separate limits or operating conditions.
For cathode-bias operation — published value 1
1 mA
Published datasheet value; multiple values on one source row represent separate limits or operating conditions.
For cathode-bias operation — published value 2
0.5 mA
Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

Characteristics

Plate resistance
5000 ohm
ClassA
Transconductance
8500 uS
ClassA
Amplification factor
40
ClassA
Voltage (AC or DC) — published value 1
6.3 V
Published datasheet value; multiple values on one source row represent separate limits or operating conditions.
Voltage (AC or DC) — published value 2
0.6 V
Published datasheet value; multiple values on one source row represent separate limits or operating conditions.
Current,at heater volts = 6.3 — published value 1
6.3 V
Published datasheet value; multiple values on one source row represent separate limits or operating conditions.
Current,at heater volts = 6.3 — published value 2
0.45 V
Published datasheet value; multiple values on one source row represent separate limits or operating conditions.
Warm-up time (Average]
11
Published datasheet value; multiple values on one source row represent separate limits or operating conditions.
Plate Supply Voltage — published value 1
150 V
Published datasheet value; multiple values on one source row represent separate limits or operating conditions.
Plate Supply Voltage — published value 2
125 V
Published datasheet value; multiple values on one source row represent separate limits or operating conditions.
Grid-No.2 Supply Voltage
125 V
Published datasheet value; multiple values on one source row represent separate limits or operating conditions.
Grid-No.l Supply Voltage — published value 1
0 V
Published datasheet value; multiple values on one source row represent separate limits or operating conditions.
Grid-No.l Supply Voltage — published value 2
-1 V
Published datasheet value; multiple values on one source row represent separate limits or operating conditions.
Cathode Resistor
56 ohm
Published datasheet value; multiple values on one source row represent separate limits or operating conditions.
Plate Resistance (Approx.) — published value 1
5000 ohm
Published datasheet value; multiple values on one source row represent separate limits or operating conditions.
Plate Resistance (Approx.) — published value 2
200000 ohm
Published datasheet value; multiple values on one source row represent separate limits or operating conditions.
Transconductance — published value 1
8500
Published datasheet value; multiple values on one source row represent separate limits or operating conditions.
Transconductance — published value 2
6400
Published datasheet value; multiple values on one source row represent separate limits or operating conditions.
Plate Current — published value 1
18 mA
Published datasheet value; multiple values on one source row represent separate limits or operating conditions.
Plate Current — published value 2
12 mA
Published datasheet value; multiple values on one source row represent separate limits or operating conditions.
Grid-No.2 Current
4 mA
Published datasheet value; multiple values on one source row represent separate limits or operating conditions.
for plate µa = 10 — published value 1
10 V
Published datasheet value; multiple values on one source row represent separate limits or operating conditions.
for plate µa = 10 — published value 2
-12 V
Published datasheet value; multiple values on one source row represent separate limits or operating conditions.
for plate µa = 10 — published value 3
-9 V
Published datasheet value; multiple values on one source row represent separate limits or operating conditions.
Grid No. 3,
3
Published datasheet value; multiple values on one source row represent separate limits or operating conditions.
Pin 4 -Heater
4
Published datasheet value; multiple values on one source row represent separate limits or operating conditions.
Pin 5 -Heater
5
Published datasheet value; multiple values on one source row represent separate limits or operating conditions.
Pin 8 -Triode Plate
8
Published datasheet value; multiple values on one source row represent separate limits or operating conditions.
Pin 9 -Triode Grid
9
Published datasheet value; multiple values on one source row represent separate limits or operating conditions.
165 and 330 volts — published value 1
165 V
Published datasheet value; multiple values on one source row represent separate limits or operating conditions.
165 and 330 volts — published value 2
330 V
Published datasheet value; multiple values on one source row represent separate limits or operating conditions.
GRID-Nw2 VOLTS=125
125 V
Published datasheet value; multiple values on one source row represent separate limits or operating conditions.
PLATE VOLTS=125
125 V
Published datasheet value; multiple values on one source row represent separate limits or operating conditions.
GRID-Ns2 VOLTS=125
125 V
Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

SECTION 2

Pentode

Other

Plate voltage
125 V
ClassA
Plate current
12 mA
ClassA
Maximum plate voltage
330 V
Maximum screen-grid voltage
330 V

Characteristics

Plate resistance
200000 ohm
ClassA
Transconductance
6400 uS
ClassA
Pin 1- Cathode, Pentode
1
Published datasheet value; multiple values on one source row represent separate limits or operating conditions.
Pin 2 -Pentode Grid No.1
2
Published datasheet value; multiple values on one source row represent separate limits or operating conditions.
Pin 6 - Pentode Plate
6
Published datasheet value; multiple values on one source row represent separate limits or operating conditions.
Pin 7- Pentode Grid No.2
7
Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

Data set 04

1975 RCA RC30

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

Heater Warm-up Time (Average)
11 seconds
Heater Warm-up Time (Average) 11 11 seconds
Plate Dissipation
3.1 watts
Plate Dissipation 2.5 3.1 watts
Grid-No
2
Grid-No.2 Input:

Capacitance

Grid to Plate
1.9 pF
Grid to Plate 1.9 pF
Grid to Cathode, Heater, Pentode Grid No
3 pF
Grid to Cathode, Heater, Pentode Grid No.3, and Internal Shield 3 pF
Plate to Cathode, Heater, Pentode Grid No
1.9 pF
Plate to Cathode, Heater, Pentode Grid No.3, and Internal Shield 1.9 pF

Characteristic

Plate Voltage
330 volts
Plate Voltage 330 330 volts
Grid-No
330 volts
Grid-No.2 (Screen-Grid) Supply Voltage 330 volts
Grid-No
300
Grid-No.2 Voltage - See curve page 300
For grid-No
165 volts
For grid-No.2 voltages up to 165 volts -
For grid-No
300 volts
For grid-No.2 voltages between 165 and 330 volts See curve page 300
Plate Supply Voltage
125 volts
Plate Supply Voltage 150 125 volts
Grid-No
125 volts
Grid-No.2 Supply Voltage 125 volts
Grid-No.l Supply Voltage
-1 volts
Grid-No.l Supply Voltage 0 -1 volts
Amplification Factor
40
Amplification Factor 40
Plate Resistance (Approx.)
0.2 megohm
Plate Resistance (Approx.) 0.005 0.2 megohm
Transconductance
6400
Transconductance 8500 6400 /imhos
Plate Current
12 mA
Plate Current 18 12 mA
Grid-No
4 mA
Grid-No.2 Current 4 mA
Grid-No
1
Grid-No. 1-Circuit Resistance:

SECTION 2

Pentode

Capacitance

Grid No.l to Plate
0.01 pF
Grid No.l to Plate 0.010 max pF
Heater to Cathode'
3.8 pF
Heater to Cathode' 3.8 pF

Other

Grid Nol to Cathode, Heater, Grid No
3
Grid Nol to Cathode, Heater, Grid No.2, Grid No.3, and
Plate to Cathode, Heater, Grid No
3
Plate to Cathode, Heater, Grid No.2, Grid No.3, and Internal