EL504

High-perveance power pentode dedicated to television horizontal line-output amplification, providing the large current pulses required by magnetic deflection transformers.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: 9C18
Socket code: B9D
Base pins: 9
Nominal heater: 6.3 V / 1.38 A

Description

Power pentode for television line-deflection amplification. Indirectly heated Mazda/Belvu receiving tube; descriptive text translated to English from the French source.

Socket description

Magnoval 9-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: 9C18
Socket code: B9D
Base pins: 9
Nominal heater voltage: 6.3 V
Nominal heater current: 1.38 A
Parallel heater voltage: -
Parallel heater current: -
Series capable: No

9C18 - 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

No fixed ratings are recorded for this section.

Beam power pentode for television line-output service

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

1968 Mazda Belvu

Published operating points and test conditions from this source.

SECTION 1

Pentode

Other

Tension filament … soneececosaneatencannen ceveseccerrs VE
6.3 V
Courant filament … … If
1.38 A
Tapacité grille n°1/ filament Ca/F
0.2 pf
Tension d'anode à courant nul ……s rses cocaorce Vabl
550 V
xenracsarnece Va
250 V
Tension de crête d'anode … . Vacr
7 V
Tension de grille n° 2 à courant nul … Vg2bl
550 V
en sanavars
250 V
Courant de cathode
250 mA
Tension entre filament et cathode ….……..….…….…………s
220 V

Characteristic

Tension d'anode ………. va
75 V
Tension de grille n° 2 … . V&
200 V
Tension de grille n° 1 Ve
-10 V
Courant de crête d'anode srarvacececoeure rn TACT
440 mA
Courant de crête de grille n° 2 ...c Iger
30 mA
VN …… 170 200
230 v
VB3 m.crsoasnsnsreu sasasesesses coseve 0m 130 150 | 130 150 170 | 150 170
190 V
VA (2) verrensrrrensencenssenance ue 62 66 65 69 "3 72 76
80 V
VE; (3) Leussrresemasameseeencniene -6 -T -6 -7 -8 -7 -8
-9 V
TACT (4) L.ucosvesssnerensenrecensens 250 310 ! 250 310 360 ! 310 360
420 mA
Tension d'alimentation ...s VN 190 |
230 V
Tension continue de grille n° 1 …… VE (3) +1|+
1 V
Courant de crête d'anode ……s Tacr (4) / 230 |
320 mA
diminue de
15 V
la tension de grille n° 1 nécessaire pour assurer le blocage du tube est de
120 V
(Va = 7kV; Vg, =
200 V

Data set 02

1999 Philips E-Z

Published operating points and test conditions from this source.

SECTION 1

Pentode

Other

Maximum cathode-heater voltage, cathode positive
200 V
Maximum cathode-heater voltage, cathode negative
200 V