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ID = 3028
Brand: Philips; Eindhoven (tubes international!); Miniwatt
Tube type:  Vacuum Pentode   Power/Output 
Identical to E463 = A4FF = TE63 = P441N = ME463 = NP43 = W463 = TK4110 = 4A8_Ultron = RENS1384 = L4138D = APP4130
Similar Tubes
Normally replaceable-slightly different:
  MPT41 ; TP450
Heater different:
Other base:
  E463_5pin ; E463_UX7pin
Other base and other heater:
Multiple differences or of other kind:
First year 1930 Tube leaflet collection E.Erb Analysis by original leaflets
First Source (s)
Apr.1933 : Philips Bulletin #D6
Jun.1933 : L'Histoire Singulière du Tube Radio; G. Duperray 2009
Successor Tubes 1935   AL2  

Base Europe 6-Pin B6 (Hx B) 1933 (Codex=Ld)
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 1.35 Ampere / Indirect / Specified voltage AC/DC

Simultaneously with the directly heated E443H Philips offered the equally sized indirectly heated E463 with the advantage of less hum and easier obtaining of grid bias. Its spreading was far below the E443H, it was not present on the German market.

Text in other languages (may differ)
Information source Babani, International Radio Tube Encyclopaedia   p. 100 & 101
Universal Vade-Mecum, Electron Valves and Semiconductor Devices   Section 207, p. 407
Taschenbuch zum Röhren-Codex 1948/49
- - Manufacturers Literature

E463: ficha de valvulas
Getulio Jimenez-Gomez

11_3.png E463: Telefunken Werkstattbuch
Wolfgang Bauer

Just Qvigstad
E463: RVF-Röhrenbuch-M1,1947
Anonymous 15 Collector

More ...
Usage in Models 1= 1933?? ; 2= 1933? ; 17= 1933 ; 3= 1934? ; 44= 1934 ; 2= 1935?? ; 8= 1935? ; 47= 1935 ; 1= 2000??

Quantity of Models at with this tube (valve, valves, valvola, valvole, válvula, lampe):125

Collection of



Forum contributions about this tube
Threads: 2 | Posts: 5
Hits: 3200     Replies: 3
E463 (E463) with B5 socket and side contact
Georges Van Campenhout † 28.4.22

Good evening,


In a NSF H48A radio, I found a Philips E463 tube wtih a 5 pin B5 socket, and with a side contact.

Please see pictures.

What is the exact connection schema?

Possibly it is a wrongly marked E453?



Jacob Roschy

Hello Georges,

I also think it is a wrongly marked E453. I never saw an E463 with that base, but we can not exclude this.

Anyway, it's almost impossible to have a base connection schema other then the E453. To be sure, you can check the wiring of the radio.

To be sure, what type it really is, you can only check this out by measurements with a tube meter.

At first you apply 250 V to anode and screen and - 22 V to grid 1. If the anode current then is around 36 mA, it must be an E463.

If the current is far less, then lower the grid 1 voltage to - 15 V. If the anode current is then around 24 mA, it will be an E453.

Best Regards, Jacob

Georges Van Campenhout † 28.4.22

Good evening Jacob,


I tested the E463 twice with my AVO VCM163, with the pinning configuration of the E453:

pin 1 = a

pin2 = g1,

pins 3 & 4 = f

pin 5 = k

side screw contact = g2


Measurement settings were: Vf = 4V, Va and Vg2 = 250 V, Vg1= -22V

and this gives following readings:

Ia = 38 mA and S= 3mA/V


Conclusion: it has to be a E463, and it is in very good condition! The measured values seem to be better than the specs.

Careful inspection of the NSF H48A reveal that the original B7 tube socket has been replaced by a B5 socket.



Beste regards




Jacob Roschy

Hello Georges,

this proves that the E463 was also produced as B5-base version, probably only in small amounts. Hence I introduced a page E463_5pin, where you can upload some pictures of this tube.

Best Regards, Jacob

Hits: 2747     Replies: 0
E463 (E463)
Reinhard Hanschke

Neupreis 1938: 69,00 FFR. Lit.: Catalog der Fa. MANUFRANCE (MF) VON 1938.

End of forum contributions about this tube

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