Alternatives & variations Download PDF datasheet

Voltage Radio Detector Converter ·Pentode-Triode

PCF801

Triode-pentode for VHF frequency-converter service.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 2
Base: 9QA
Socket code: B9A
Base pins: 9
Nominal heater: 8.5 V / 300 mA

Description

Triode-pentode for VHF frequency-converter 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: 9QA
Socket code: B9A
Base pins: 9
Nominal heater voltage: 8.5 V
Nominal heater current: 300 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: 18000 Ω
Transconductance: 0.009 S
Amplification factor: 20
Max plate voltage: 125 V
Max plate dissipation: 1.5 W
Max cathode current: 20 mA

Published ratings and characteristics promoted from the approved English source.

Section 2

Pentode

X-ray radiationInterelectrode capacitances

Plate resistance: 350000 Ω
Transconductance: 0.011 S
Amplification factor: 55
Max plate voltage: 250 V
Max screen voltage: 250 V
Max plate dissipation: 2 W
Max screen dissipation: 0.55 W
Max cathode current: 18 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

1959 Telefunken

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristics

Plate Voltage
100 V
Plate Current
15 mA

SECTION 2

Pentode

Characteristics

Plate Voltage
170 V
Screen Voltage
120 V
Plate Current
10 mA

Data set 02

1963 Philips Electron Tubes Handbook V1

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

Plate voltage
100 V
Oscillator
Control-grid voltage
-3 V
Oscillator
Plate current
15 mA
Oscillator
Oscillator supply voltage
200 V
Oscillator
Oscillator voltage
4.5 V RMS
Oscillator

Characteristic

Transconductance
9000 µS
Section1
Amplification factor
20
Section1

SECTION 2

Pentode

Other

Plate voltage
170 V
Mixer
Screen voltage
120 V
Mixer
Control-grid voltage
-1.2 V
Mixer
Plate current
10 mA
Mixer
Screen current
3 mA
Mixer

Characteristic

Transconductance
11000 µS
Section2
Plate resistance
350000 Ω
Minimum
Amplification factor
55
Section2

Data set 03

1967 Mullard Receiving and Amplifying Valves

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristic

Plate voltage
100 V
ClassA
Grid No.1 voltage
-3 V
ClassA
Plate current
15 mA
ClassA

Other

Plate supply voltage
600 V

SECTION 2

Pentode

Characteristic

Plate voltage
170 V
ClassA
Screen-grid voltage
120 V
ClassA
Grid No.1 voltage
-1.2 V
ClassA
Plate current
10 mA
ClassA
Screen-grid current
3 mA
ClassA

Other

Plate supply voltage
600 V
Screen-grid supply voltage
600 V

Data set 04

1968 Mazda Belvu

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

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

Characteristic

Transconductance
5000 µS
Typical
Amplification Factor
50
Typical
Plate Resistance
18000 ohm
Typical

SECTION 2

Pentode

Other

HeaterVoltageNominal
8.5 V
Nominal
HeaterCurrentNominal
300 mA
Nominal
Maximum Plate Voltage
250 V
Maximum Screen Voltage
250 V
Maximum Plate Dissipation
2.5 W
Maximum Screen Dissipation
0.5 W
Maximum Cathode Current
25 mA

Characteristic

Transconductance
6000 µS
Typical
Plate Resistance
300000 ohm
Typical

Data set 05

1972 Philips Receiving Tubes

Published operating points and test conditions from this source.

SECTION 1

Triode

Application

Application
VHFOscillator text

SECTION 2

Pentode

Application

Application
VHFMixer_IFAmplifier text

Data set 06

1973 Mazda Valves Binder 2

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristic

changer and I.F, amplifier at frequencies up to
200 Mc/s
Pentode Input cin(p)
62 pF
Pentode Output cout(p)
3.7 pF
Pentode Anode to Grid 1 cap-g1 0
9 pF
Pentode Anode to Grid 1 Cap-g1 <
12 pF
Grid 1 to Grid 2 cS1_S2
1.6 pF
Triode Input cin(t)
3.3 pF
Triode Output cout(t)
1.7 pF
Anode Triode to Grid Triode cat-gt
18 pF
Anode Pentode to Anode Triode Cap-at <
25 pF
Anode Pentode to Grid Triode cap-gt <
10 pF
Grid 1 to Anode Triode c8i_at <
0.01 pF
Grid 1 to Grid Triode cS1_gt <
10 pF
Anode Voltage Va 100
170 V
Screen Grid Voltage Vg2 —
120 V
Control Grid Voltage Vg1 -30
-14 V
Anode Current la 15
10 mA
Screen Grid Current Ig2
30 mA
Mutual Conductance gm 90
11 mA
Anode Current la 10
93 mA
Screen Grid Current I$z 30
2.9 mA
R.M.S. Heterodyne Voltage Vhet(r.m.s.) 16
16 V
Conversion Conductance gc 50
47 mA
Anode Current 10
13 mA
Screen Grid Current Igz 30
3.9 mA
Mutual Conductance gm 11
145 mA
Control Grid Voltage for gm =
11 mA
Input Resistance at
50 Mc/s
R.M.S. Heterodyne Voltage Vhet(r.m.s.) 4.5
3.3 V
Anode Current la 16
12 mA
Mutual Conductance gm 3.7
3.7 mA
Vg =
170 V
N1111111111111111111►:111111111111111;i
1.1111111111111112e+28 w
4 IIIIIIIIIIIlllllll!illlli!111111!~1!ii111111111111IIIIIIIIIIIIIIIIIIII
0.4 a

Other

Heater Current lb
300 mA
Heater Voltage Vh
8.5 V
Maximum Anode Dissipation pa(max) 15
20 W
Maximum Screen Grid Dissipation (V8i =
0 V
Maximum Anode Supply Voltage Va(b)max 550
550 V
Maximum Anode Voltage Va(max) 125
250 V
Maximum Screen Grid Supply Voltage V$2(b)max —
550 V
Maximum Screen Grid Voltage VS2 (max) —
250 V
Maximum Negative Control Grid Voltage —VS1(max) 50
50 V
Maximum Cathode Current Ik(max) 20
18 mA
t For V81 equal to or more negative than 52 V then pg2 (max) =
2 W
Anode Supply Voltage Va(b) 200
200 V
Screen Grid Supply Voltage Vg2(b) 200
200 V
Control Grid Supply Voltage Vgi(b) -1.4
0 V

Data set 07

1975 RCA RC30

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristic

Plate voltage
100 V
ClassA
Grid No.1 voltage
-3 V
ClassA
Plate current
15 mA
ClassA

Other

Plate supply voltage
600 V

SECTION 2

Pentode

Characteristic

Plate voltage
170 V
ClassA
Screen-grid voltage
120 V
ClassA
Grid No.1 voltage
-1.2 V
ClassA
Plate current
10 mA
ClassA
Screen-grid current
3 mA
ClassA

Other

Plate supply voltage
600 V
Screen-grid supply voltage
600 V

Data set 08

1999 Philips E-Z

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristic

Anode current Iy
15 mA
Transconductance S
9 mA/V
Heater current If
300 mA
Heater voltage Vi
8.5 V
Grid to all except anode
3.3 pF
Ca(g)
1.7 pF
Anode to grid
1.8 pF
Pentode anode to triode anode CaPaT max
0.025 pF
Pentode anode to triode grid CanT max.,
0.01 pF
Pentode grid No. 1 to triode anode CglPaT max
0.01 pF
Pentode grid No. 1 to triode grid
0.01 pF
Anode current 16
12 mA
ST
~1.4 V
Vg, [1]
0 V
Vg, [2]
5 V
Vg, [3]
-1 V
{ Va
170 V
FIT 1 Vb
200 V
Ril Vb92,
200 V
Hboo [1]
200 V
Hboo [2]
200 V

SECTION 2

Pentode

Characteristic

Transconductance S
11 mA/V
Grid No.1 to grid No.2
1.6 pF
Grid No. 2 voltage
120 V
Anode current
10 mA
Transconductance
11 mA
Equivalent noise resistance
1.5 kΩ
Grid No.1 supply voltage Vbgl -1.4
0 V
Anode current Iy 10
13 mA
Grid No.2 current Igz 3.0
3.9 mA
Transconductance S 11
14.5 mA/V
Input resistance at
50 MHz
Anode current 10
9.3 mA
Grid No.2 current 3.0
2.9 mA
Grid No.2 voltage Vgz max
250 V
Grid No.1 voltage —Vgl max. oS
0 V
Grid No.1 resistor, fixed bias Rgl max
1 MΩ
automatic bias Rgl max
2.2 MΩ
Cathode current I max
18 mA
Anode voltage Vag max,
550 V
Anode supply voltage Vba max
2350 V
Anode voltage Va max
125 V
Anode dissipation W, max
1.5 W
Grid voltage ~Vg max
50 V
Cathode current I max
20 mA
Cathode to heater voltage Vit max
100 V
voltage between heater and cathode should not exceed
100 V
heater and cathode should not exceed
50 V

Capacitance

Grid No.1 to all except anode
5.9 pF
Anode to all except grid No. 1
3.7 pF
Cagl
0.009 pF
Cag 1 max
0.012 pF

Other

Anode supply voltage Vpa
200 V
Grid No. 2 supply veltage Vbgz
200 V
Anode voltage Vag max
530 V
Va max
250 V
Anode dissipation Wy max
2 W
Grid No.2 voltage VgZO max
550 V
Grid No.2 supply voltage Vbg2 max
250 V