radiomuseum.org
Please click your language flag. Bitte Sprachflagge klicken.

505

Information - Help 
ID = 1352
       
Country:
Netherlands
Brand: Philips; Eindhoven (tubes international!); Miniwatt
Tube type:  Half-Wave Vacuum Rectifier   Power-supply 
Identical to 505 = RGN1304 = V1_Visseaux = V495 = G495 = DU4 = G450 = GT138 = R4B = RRR145
Similar Tubes
Normally replaceable-slightly different:
  412SU ; EG410 ; EG4100 ; EG460 ; G140 ; G530 ; GL4/1E ; M440 ; R0446 ; Super-Valve ; VR2_Castilla
First year 1927 Tube leaflet collection E.Erb Analysis by original leaflets
First Source (s)
Mar.1929 : Funk Bastler 1929, Heft 9
Jul.1930 : Philips Bulletin R1164, p. 19

Base Europe 3-Pin B3 (Eu H) (Codex=Eo)
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 1 Ampere / Direct / Specified voltage AC/DC
Dimensions (WHD)
incl. pins / tip
52 x 126 x 35 mm / 2.05 x 4.96 x 1.38 inch
Weight 43 g / 1.52 oz
Information source - - Manufacturers Literature   
Taschenbuch zum Röhren-Codex 1948/49   
Babani, International Radio Tube Encyclopaedia
Universal Vade-Mecum, Electron Valves and Semiconductor Devices

505.png
505: Internet
Miguel Angel Trujillo-Rodriguez

16_33.png 505: Telefunken Werkstattbuch
Wolfgang Bauer

More ...

Just Qvigstad
vv34_54_1.png
505: Valvo-Röhren-Daten 1934
Jacob Roschy

More ...
Usage in Models 4= 1929 ; 2= 1930?? ; 2= 1930 ; 1= 1931? ; 1= 1931 ; 1= 1933??

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):11

Collection of

 
505_philips.jpg

505
 

Forum contributions about this tube
505
Threads: 1 | Posts: 4
Hits: 4961     Replies: 3
Tube Philips 505 Cine Sonor (.33.)
Georges Van Campenhout † 28.4.22
27.Mar.10
  1

Dear Radio friends,

 

I recently received a Philips Tube, model 505.

On top of this tube is written (see pictures)

 

PHILIPS

CINE SONOR

505

(.33.)

 

Inside, one can clearly distinguish two diode systems!

I wonder if this is the same tube??

 

 

Attachments

Jacob Roschy
27.Mar.10
  2

Hello Georges,

 

since this tube has merely 3 pins, it can't be anything else then a half-wave rectifier, although two diode systems are visible. It's very likely that you can find a parallel connection inside the tube. I have very little doubt about the correct designation 505.

This method was even used in some other cases: have a look at the second picture of the rectifier type 1803 (under “more”) - and you can see a 1803 which is made in the same way. The connection between the two anodes is clearly visible.

Best Regards, Jacob

 


 

Georges Van Campenhout † 28.4.22
28.Mar.10
  3

Thank you, Jacob.

Indeed, looking carefully into the glass base shows that the two heaters are connected in series.

But what about the other marking: CINE SONOR?

Was this rectifier used only for cinema applications? Or is there another explanation?

 

Best regards

 

Georges

 

 

Georg Richter
28.Mar.10
  4

Philips Eindhoven had a "Cine Sonor" department for cinema equipment production (like Siemens had a separate company "Klangfilm").

It may be that Philips tubes which are labeled "Cine Sonor" was sold for a higher price for "dedicated application", similar to the "Klangfilm" tubes which was (often) standard tubes with a different numbering system to prevent cinema operators to use cheaper tubes for replacement. As far as I know the cinema operators had to sign a contract with the cinema equipment supplier.

I do not know if those "cinema" tubes has had a higher reliability or was selected for reaching the upper limits of the specifications.

If somebody can quote a contract between cinema equipment manufacturers and cinema operators, or can provide data sheets or an advertisement folder of Philips "Cine Sonor" equipment we will know more.

Best Regards

GR

 
505
End of forum contributions about this tube

You reach this tube or valve page from a search after clicking the "tubes" tab or by clicking a tube on a radio model page. You will find thousands of tubes or valves with interesting links. You even can look up radio models with a certain tube line up. [rmxtube-en]
  

Data Compliance More Information