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Power - TV Vertical Output ·BeamPower-Triode

PCL85

Triode beam-power combination tube for television vertical-deflection service, integrating oscillator or driver and high-current frame-output functions.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 2
Base: B9A
Socket code: B9A
Base pins: 9
Nominal heater: 18 V / 300 mA

Description

Triode-pentode power tube for 110-degree television vertical-deflection service.

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: B9A
Socket code: B9A
Base pins: 9
Nominal heater voltage: 18 V
Nominal heater current: 300 mA
Parallel heater voltage: -
Parallel heater current: -
Series capable: No

B9A - 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: 9000 Ω
Transconductance: 0.007 S
Amplification factor: 63
Max plate voltage: 550 V
Max plate dissipation: 0.5 W
Max cathode current: 15 mA

Triode section; promoted values are taken from the approved source where explicitly published.

Section 2

Beam Power

X-ray radiationInterelectrode capacitances

Plate resistance: 15000 Ω
Transconductance: 0.011 S
Max plate voltage: 550 V
Max screen voltage: 250 V
Max plate dissipation: 8 W
Max screen dissipation: 1.5 W
Max cathode current: 75 mA

Pentode section; promoted values are taken from the approved source where explicitly published.

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

1953 La Radiotechnique

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristic

Indirect (cathode isolee du filament)
300 mA
Triode
Alimentation en serie | Vi
18 V
Triode

Data set 02

1963 Philips Electron Tubes Handbook V1

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

Plate voltage maximum
250 V
TriodeSection
Plate dissipation maximum
0.5 W
TriodeSection
Cathode current maximum
15 mA
TriodeSection

SECTION 2

Beam Power

Other

Plate voltage maximum
250 V
PentodeSection
Peak plate voltage maximum
2000 V
FrameOutput
Plate dissipation maximum
7 W
Continuous
Plate dissipation maximum
9 W
FrameOutput
Screen voltage maximum
250 V
PentodeSection
Screen dissipation maximum
1.5 W
PentodeSection
Application
Vertical/frame time-base output with triode driver
Section2

Data set 03

1968 Mazda Belvu

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

HeaterVoltageNominal
18 V
Nominal
HeaterCurrentNominal
300 mA
Nominal
Maximum Plate Voltage
250 V
Maximum Plate Dissipation
1.5 W
Maximum Cathode Current
20 mA

Characteristic

Transconductance
5500 µS
Typical
Amplification Factor
50
Typical
Plate Resistance
18000 ohm
Typical

SECTION 2

Beam Power

Other

HeaterVoltageNominal
18 V
Nominal
HeaterCurrentNominal
300 mA
Nominal
Maximum Plate Voltage
550 V
Maximum Screen Voltage
250 V
Maximum Plate Dissipation
7 W
Maximum Screen Dissipation
2.5 W
Maximum Cathode Current
80 mA

Characteristic

Transconductance
11000 µS
Typical
Plate Resistance
15000 ohm
Typical

Data set 04

1972 Philips Receiving Tubes

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristics

Heater voltage
17.5 V
Published nominal value
Heater current
300 mA
Published nominal value
Transconductance
7000 µS
Published operating characteristic

Other

Maximum plate dissipation
0.5 W
Published maximum rating
Maximum pentode peak anode voltage
2 kV
Frame-output pulse service

SECTION 2

Beam Power

Characteristics

Heater voltage
17.5 V
Published nominal value
Heater current
300 mA
Published nominal value

Other

Maximum plate dissipation
8 W
Published maximum rating

Data set 05

1973 Mazda Valves Binder 2

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

Heater Current Ih
300 mA
Heater Voltage Vh
175 V
Maximum Anode Supply Voltage Va(b)max 550
550 V
Maximum Anode Voltage Va(max) 300
300 V
Maximum Screen Grid Supply Voltage V$2(b)max
550 V
Maximum Screen Grid Voltage V$2(max) —
250 V
Maximum Heater to Cathode Voltage Vh-k(max) 200§
200 V
Maximum Cathode Current Ik(max) 15
75 mA
$ Maximum pulse duration 5% of one cycle with a maximum of
1 ms
§ During warming up the maximum d.c. component is
315 V
Maximum pulse duration 2% of one cycle with a maximum of
400 s
I Grid 1 to Heater Cgl -h <0.15 <
0.2 pF

Characteristic

Self Bias 33
2.2 MS
height Pa should not exceed
105 W
height pS2 should not exceed
2 W
Anode Pentode to Grid Triode Cap_gt <
3 pF
Anode Triode to Grid 1 Cat-g1 <
0.08 pF
Anode to Grid 1 Ca.gl — <
6 pF
Anode Voltage Va 100
100 V
Control Grid Voltage Vg —0 85
0 V
Anode Current la 50
105 mA
Mutual Conductance gm 55
70 mA
Anode Voltage Va 50
65 V
Screen Grid Voltage Vg., 170
210 V
Control Grid Voltage Vgi -10
-1 V
Peak Anode Current Ia(pk) 200
285 mA
Peak Screen Grid Current )ga(pk) 35
45 mA
Zgl (f =
50 Hz
Cgl-h =
2 pF
Vh•k (r.m.s.) _=
150 V
== ——
190 V
T T T
-20 V
Q •i ii 'aaaii7iaa l ■■i■■■..."i..._ iii•.. ._
-4 V
___■ 3nUUU::jii■~Uasa! !..= 'i ...U.U________
-16 V
~• ~~
-22 V
d' —
8 V
PENTODE SECTION V92 =
210 V

Data set 06

1975 RCA RC30

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

Plate supply voltage
550 V

Characteristic

Plate voltage
100 V
ClassA
Grid No.1 voltage
-0.8 V
ClassA
Plate current
5 mA
ClassA

SECTION 2

Beam Power

Other

Plate supply voltage
550 V
Peak plate voltage
2000 V
Screen-grid supply voltage
550 V

Characteristic

Plate voltage
170 V
ClassA
Screen-grid voltage
170 V
ClassA
Grid No.1 voltage
-15 V
ClassA
Plate current
41 mA
ClassA
Screen-grid current
2.7 mA
ClassA

Data set 07

1999 Philips E-Z

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristic

Anode current Iy
10.5 mA
Transconductance S
7 mA/V
Cathode peak current Ikp max
150 mA
Anode current I, S
10.5 mA
Transconductance S 5.5
7 mA/V
peak Iic, max
100 mA
for automatic bias Rg max
3.3 MΩ
Cathode to heater voltage Vs max
200 V
A cathode peak current of
100 mA
max
315 V
T urves A:Vo=\g
210 V
V91
0 V
Iy Y Ygp
210 V
ag’ - p e - -—
22 V
e i 1 0 Tvg
210 V
AN
12 V
mAJ-L 8 1 Vg, [1]
190 V
mAJ-L 8 1 Vg, [2]
0 V
cERnE) T ee
0 V
gy ey L
16 V
4 N e
18 V
Vg,
0 V
S===_
8 V
s,
10 V
00\ Yo
0 V
(mA), i
210 V
§6« Y
2 A
y,
4 V
Vg
100 V

Other

Anode voltage Va, max
550 V
V, max
300 V
Anode dissipation Wy max
0.5 W
average Ik max
15 mA
peak Ikp max
150 mA

SECTION 2

Beam Power

Characteristic

Anode peak voltage Vap max
2 kV
Anode dissipation W, max
8 W
Heater current If
300 mA
Heater voltage Ve
17.5 V
when Zgl (at f [1]
50 Hz
when Zgl (at f [2]
0.2 pF
Grid No. 2 dissipation Wg2 max
1.5 W
Cathode current Ix max
75 mA
for fixed bias Rgl max
1 MΩ
for automatic bias Rgl max
2.2 MΩ
Cathode to heater voltage Vif max
200 V

Capacitance

Grid triode to anode pentode CgTaP max
0.05 pF
Grid triode to heater CgTf max
0.15 pF
Grid No. 1 pentode to anode pentode Cglpap max
1 pF
Grid No. 1 pentode to anode triode CglPaT max
0.08 pF
Grid No.l pentode to heater CglPf max
0.2 pF

Other

Anode voltage Va 50
65 V
Anode peak current Iap 200
285 mA
Grid No. 2 peak current Ig2p 35
45 mA
Anode voltage Vag max
550 V
Va max
300 V
Grid No. 2 voltage VgZO max
550 V
Vg 9 max
250 V
picture height W, should not exceed
10.5 W