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Power - Beam (NOT sweep) ·BeamPower-Triode

PCL82

Triode beam-power valve intended primarily for audio-frequency output service, combining a voltage-amplifying triode with a power-output section for compact receiver audio stages.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 2
Base: 9EX
Socket code: B9A
Base pins: 9
Nominal heater: 16 V / 300 mA

Description

Triode-pentode for television vertical deflection and audio preamplifier/output stages.

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: 9EX
Socket code: B9A
Base pins: 9
Nominal heater voltage: 16 V
Nominal heater current: 300 mA
Parallel heater voltage: -
Parallel heater current: -
Series capable: No

9EX - Terminal pinout

Electrical assignments shared by every tube using this base designation.

Terminal	Section	Connection	Evidence
PIN1Base Pin	B	G1 — Control Grid Original chart label: 2G1; manufacturer verification pending	Unverified EIA Base Connections, printed page 132, 9EX
PIN2Base Pin	A	G3 — Suppressor GridGroup 9EX2 Original chart label: 1G3; manufacturer verification pending	Unverified EIA Base Connections, printed page 132, 9EX
PIN2Base Pin	A	K — CathodeGroup 9EX2 Original chart label: 1K; manufacturer verification pending	Unverified EIA Base Connections, printed page 132, 9EX
PIN3Base Pin	A	G1 — Control Grid Original chart label: 1G1; manufacturer verification pending	Unverified EIA Base Connections, printed page 132, 9EX
PIN4Base Pin	—	H — Heater Original chart label: H; manufacturer verification pending	Unverified EIA Base Connections, printed page 132, 9EX
PIN5Base Pin	—	H — Heater Original chart label: H; manufacturer verification pending	Unverified EIA Base Connections, printed page 132, 9EX
PIN6Base Pin	A	P — Plate (Anode) Original chart label: 1P; manufacturer verification pending	Unverified EIA Base Connections, printed page 132, 9EX
PIN7Base Pin	A	G2 — Screen Grid Original chart label: 1G2; manufacturer verification pending	Unverified EIA Base Connections, printed page 132, 9EX
PIN8Base Pin	B	K — Cathode Original chart label: 2K; manufacturer verification pending	Unverified EIA Base Connections, printed page 132, 9EX
PIN9Base Pin	B	P — Plate (Anode) Original chart label: 2P; manufacturer verification pending	Unverified EIA Base Connections, printed page 132, 9EX

Section ratings

2 physical sections, each with unique specifications.

Section 1

Triode

X-ray radiationInterelectrode capacitances

Plate resistance: 40000 Ω
Transconductance: 0.0022 S
Amplification factor: 70
Max plate voltage: 550 V
Max plate dissipation: 1 W
Max cathode current: 15 mA

Published values promoted where clearly readable; identical repeated sections compressed when applicable.

Section 2

Beam Power

X-ray radiationInterelectrode capacitances

Plate resistance: 16000 Ω
Transconductance: 0.0075 S
Max plate voltage: 550 V
Max screen voltage: 250 V
Max plate dissipation: 7 W
Max screen dissipation: 1.8 W
Max cathode current: 50 mA

Published ratings and characteristics promoted from the approved English source.

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

1958 Brimar Radio Valve No 7

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

Plate Voltage
100 V
TriodeSection
Plate Current
3.5 mA
TriodeSection

Characteristic

Transconductance
2500 µS
TriodeSection
Amplification Factor
70
TriodeSection

SECTION 2

Beam Power

Other

Plate Voltage
170 V
PentodeSection
Screen Voltage
170 V
PentodeSection

Characteristic

Transconductance
7500 µS
PentodeSection
Plate Resistance
16000 ohm
PentodeSection
Application
Frame output / sound output
PentodeSection

Data set 02

195X Tesla

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristics

Heater voltage
16 V
Published nominal value or midpoint of published range
Heater current
300 mA
Published nominal value or midpoint of published range

Data set 03

1961 Ferranti Technical Handbook

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristics

Heater Voltage
16 V
Heater Current
300 mA

Data set 04

1963 Philips Electron Tubes Handbook V1

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

Plate voltage
100 V
AudioPreamplifier
Control-grid voltage
0 V
AudioPreamplifier
Plate current
3.5 mA
AudioPreamplifier

Characteristic

Transconductance
2200 µS
Section1
Amplification factor
70
Section1

SECTION 2

Beam Power

Other

Plate voltage
170 V
AudioOutput
Screen voltage
170 V
AudioOutput
Control-grid voltage
-11.5 V
AudioOutput
Plate current
41 mA
AudioOutput
Screen current
9 mA
AudioOutput
Peak plate current
85 mA
FrameOutput

Characteristic

Transconductance
7500 µS
Section2
Plate resistance
16000 Ω
Section2
Amplification factor
9.5
Section2

Data set 05

1967 Mullard Receiving and Amplifying Valves

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

Plate supply voltage
550 V
Peak plate voltage
600 V

Characteristic

Plate voltage
100 V
ClassA
Grid No.1 voltage
0 V
ClassA
Plate current
3.5 mA
ClassA

SECTION 2

Beam Power

Other

Plate supply voltage
550 V
Peak plate voltage
2500 V
VerticalDeflection
Plate dissipation
5 W
VerticalDeflection
Plate dissipation
7 W
AudioOutput

Characteristic

Plate voltage
200 V
ClassA
Screen-grid voltage
200 V
ClassA
Grid No.1 voltage
-12.5 V
ClassA
Plate current
35 mA
ClassA
Screen-grid current
6.5 mA
ClassA

Data set 06

1968 Mazda Belvu

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

HeaterVoltageNominal
16 V
Nominal
HeaterCurrentNominal
300 mA
Nominal
Maximum Plate Voltage
250 V
Maximum Plate Dissipation
1 W
Maximum Cathode Current
15 mA

Characteristic

Transconductance
2500 µS
Typical
Amplification Factor
70
Typical
Plate Resistance
40000 ohm
Typical

SECTION 2

Beam Power

Other

HeaterVoltageNominal
16 V
Nominal
HeaterCurrentNominal
300 mA
Nominal
Maximum Plate Voltage
250 V
Maximum Screen Voltage
250 V
Maximum Plate Dissipation
7 W
Maximum Screen Dissipation
2.5 W
Maximum Cathode Current
60 mA

Characteristic

Transconductance
6400 µS
Typical
Amplification Factor
9.5
Typical
Plate Resistance
20000 ohm
Typical

Data set 07

1972 Philips Receiving Tubes

Published operating points and test conditions from this source.

SECTION 1

Triode

Application

Application
FrameOscillator_AFAmplifier text

SECTION 2

Beam Power

Other

Power Output
3.3 W
ClassA;OneTube;AFPowerAmplifier

Data set 08

1973 Mazda Valves Binder 2

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

Heater Current ih
3 A
Heater Voltage Vh
16 V
Maximum Screen Grid Dissipation pg2(max) —
1.8 W
Maximum Anode Supply Voltage (1a=0) Va(b)max 550
550 V
Maximum Anode Voltage Va(max) 250
250 V
Maximum Screen Grid Supply Voltage (ig2=0) Vg2(b)max —
550 V
Maximum Screen Grid Voltage Vg2(max) —
250 V
Maximum Mean Cathode Current ik(av)max 15
50 mA
* Maximum pulse duration 4 per cent, of one cycle with a maximum of
800 µs
t Maximum pulse duration
200 µs
Grid Triode to Heater Cgt_h 0 018 0 031 0
42 pF
Grid 1 to Heater cg1_h 024 038
71 pF

Characteristic

For Va ~250V 10
70 W
For Va >250V —
50 W
For speech and music —
32 W
Pulse Negative —
500 V
Tetrode Input Cin(q) 93 96
107 pF
Tetrode 'Output Cout(q) 90 93
104 pF
Tetrode Anode to Grid 1 caq_gi 035 0.37
38 pF
Triode Input C;n(t) 30 32
4.1 pF
Triode Output Cout(t) 43 45
54 pF
Grid Triode to Anode Triode Cgt~ t 42 43
44 pF
Anode Tetrode to Anode Triode Caq_at 0.15 0.18
0.19 pF
Grid 1 to Grid Triode Cg1_gt 0 011 0 030 0
63 pF
Grid 1 to Anode Triode Cg1_at 0 017 0 023 0
28 pF
Grid Triode to Anode Tetrode Cgt_aq 0 014 0 020 0
22 pF
Anode Voltage Va 100
200 V
Screen Grid Voltage Vg2
200 V
Anode Current Ia 3.5
35 mA
Screen Grid Current Ig2 —
7 mA
Control Grid Voltage Vg1 0 —
16 V
Mutual Conductance gm 2.5
6.4 mA
Anode Voltage Va 170
200 V
Screen Grid Voltage Vg2 170
200 V
Grid Bias Voltage Vg —11.5 —
16 V
Quiescent Anode Current la(o) 41
35 mA
Quiescent Screen Grid Current Ig2(o) 8
7 mA
Power Output for 10 per cent, total distortion Pout 3.3
3.5 W
Input Swing Voltage (R.M.S.) Vin(r.m.s.) 6
6.6 V
Input Swing for 50mW output (R.M.S.) 0.59
0.6 V

Data set 09

1975 RCA RC30

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

Plate supply voltage
550 V
Peak plate voltage
600 V

Characteristic

Plate voltage
100 V
ClassA
Grid No.1 voltage
0 V
ClassA
Plate current
3.5 mA
ClassA

SECTION 2

Beam Power

Other

Plate supply voltage
550 V
Peak plate voltage
2500 V
VerticalDeflection
Plate dissipation
5 W
VerticalDeflection
Plate dissipation
7 W
AudioOutput

Characteristic

Plate voltage
200 V
ClassA
Screen-grid voltage
200 V
ClassA
Grid No.1 voltage
-12.5 V
ClassA
Plate current
35 mA
ClassA
Screen-grid current
6.5 mA
ClassA

Data set 10

1999 Philips E-Z

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristic

Anode current Iy
3.5 mA
Transconductance S
2.2 mA/V
Anode voltage Va
100 V
Anode current Iy 0.52
0.43 mA
B. Signal source resistance Rg
0.22 MΩ
Anode current Iy 1.05 0.61 0.86
0.5 mA
of [1]
50 mW
of [2]
50 Hz
pin 4 and cathode should not exceed
6.3 V
peak Ikp max
100 mA
for automatic bias Rg max
3 MΩ
Grid impedance at S [1]
0 Hz
Grid impedance at S [2]
0.5 MΩ
Cathode to heater voltage Vis max
200 V
ne
7 W
18 el }hf L -] Voa
170 V
V. - y A—
2.5 V
yd
-3 V
0 i~ - Lt s
4 V

Capacitance

Anode to all except grid Ca(g)
4.3 pF
Grid to all except anode Cg(a)
2.7 pF
Anode to grid Cag
4.4 pF
Grid to heater Cpf max
0.02 pF

Other

A. Signal source resistance Rg
0.22 MΩ
Supply voltage Vb 200
170 V
Anode voltage Vao max
550 V
Va max
250 V
Cathode current, average I max
15 mA

SECTION 2

Beam Power

Characteristic

Anode peak voltage Vap max
2.5 kV
Anode current I,
41 mA
Transconductance S
7.5 mA/V
Output power W,
3.3 W
Heater current I¢
300 mA
Heater voltage Vs
16 V
Grid No.1 to all except anode Cgi(a)
9.3 pF
Anode to grid No.1 Cag max
0.3 pF
Grid No.1 to heater Cglf max
0.3 pF
Anode triode to grid No.l pentode CaTglP max
0.02 pF
Grid triode to anode pentode CgTaP max
0.02 pF
Grid triode to grid No.l pentode CgTgP max
0.025 pF
Anode triode to anode pentode CaTaP max
0.25 pF
Anode voltage Va
170 V
Grid No.1 voltage Vgl
~11.5 V
Grid No.2 current Igz
9 mA
is
0.8 pF
Anode current Ia 42 - 44 35 - 37 30
31 mA
Grid No.2 current 9.2 - 15,5 7.8 - 13.3 6.6
11 mA
Output power WO 00.05 3.2 00.05 3.3 0 0.05
3.25 W
Anode current I 2x35 2x42.5 2x30 2x
34.5 mA
Grid No.2 current Ig2 2x8 2x16.5 2x6.2 2x
13.5 mA
Cutput power Wo 0 9.3 0
10 W
The circuit should operate satisfactorily with peak anode current I3,
85 mA
at vV, [1]
50 V
at vV, [2]
170 V
at vV, [3]
300 mA
Anode voltage Vao max
550 V
Va max
250 V
Anode peak voltage, positive Vap max
2.5 kV
negative —Vap max
500 V
Grid No.2 voltage Vg20 max
550 V
Vg max
250 V
for frame output application W, max
5 W
for A.F. output application Wy max
7 W
average Wg2 max
1.8 W
application (W4 max [1]
4 W
application (W4 max [2]
2 W
peak WgZp max
3.2 W
Cathode current I max
50 mA
Grid No.1 resistor, for fixed bias Rgl max
1 MΩ
for automatic bias Rg1 max
2 MΩ
Cathode to heater voltage Vif __max
200 V

Capacitance

Anode to all except grid No.l Ca(gl)
8 pF