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F443

Pentode designed for output, amplifier, or modulator service. Philips documentation provides electrical ratings, heater data, operating limits, and characteristics supporting power-capable signal and modulation applications.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: -
Base pins: -
Nominal heater: 4 V / 2 A

Description

Pentode for output, amplifier, or modulator service. Electrical ratings, heater data, operating limits, and published characteristics are captured from the supplied datasheet.

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: -
Socket code: -
Base pins: -
Nominal heater voltage: 4 V
Nominal heater current: 2 A
Parallel heater voltage: -
Parallel heater current: -
Series capable: No

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

Pentode

X-ray radiationInterelectrode capacitances

Transconductance: 0.004 S
Max plate voltage: 550 V
Max screen voltage: 400 V
Max plate dissipation: 25 W

Published ratings/characteristics are also preserved as parameter rows.

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

1999 Philips E-Z

Published operating points and test conditions from this source.

SECTION 1

Pentode

Other

betragt
550 V
betragt 550 V; der Anodenverlust
nung auf
25 W
nung auf 25 Watt.
Die F
443 w
Die F 443 wird normalerweise
Heizspannung . \i
4 V
Heizspannung . \i 4,0 V
Heizstrom ip
2 A
Heizstrom ip 2,0 A
Anodenspannung . \/a
-550 V
Anodenspannung . \/a 400-550 V
150-200 V
-200 V
150-200 V
Steilheit . S
4 mA
Steilheit . S 4,0 mA/V
Negative Steuergitterspannung ( beivg’ —=200V) Vg
200 V
Negative Steuergitterspannung ( beivg’ —=200V) Vg 39V
Negative Steuergitterspannung ( beivg’ —=200V) Vg
39 V
Negative Steuergitterspannung ( beivg’ —=200V) Vg 39V
Normaler Anodenstrom (beiv/=200V) i a
200 V
Normaler Anodenstrom (beiv/=200V) i a 45 mA
Normaler Anodenstrom (beiv/=200V) i a
45 mA
Normaler Anodenstrom (beiv/=200V) i a 45 mA
29 V bei
29 V
29 V bei 150 V Schirmgitterspannung (v, = 400 V),
29 V bei
150 V
29 V bei 150 V Schirmgitterspannung (v, = 400 V),
29 V bei
400 V
29 V bei 150 V Schirmgitterspannung (v, = 400 V),
39V ””
39 V
39V ”” 200 V 3 (v, = 550 V).
39V ””
200 V
39V ”” 200 V 3 (v, = 550 V).
39V ””
550 V
39V ”” 200 V 3 (v, = 550 V).
Vf=
40 V
Vf= 40V
Vg =400-550V
-550 V
Vg =400-550V
150-200V
-200 V
150-200V