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47M

Information - Help 
ID = 52010
       
Country:
Australia
Brand:
Developer: Philips Australia 
Tube type:  Vacuum Pentode   Power/Output 
Identical to 47M
Similar Tubes
Normally replaceable-slightly different:
  47

Base UY-Base, 5 Pins (USA, April 1927)
Was used by Radio/TV-reception etc.
Filament Vf 2.5 Volts / If 1.75 Ampere / Half indirect / Parallel, (AC/DC)
Description

This tube, described by Don Black of TCA, was an Australian indirectly heated version of 47. Cathode connected to the center tap of the heater. The tube is a compact version of the directly heated 47, having a bulb size diameter of 45 mm. Listed in the Australian Philips Miniwatt Technical Data book, 7th edition, 1962. Mullard branded tubes with this type number were also made at the Philips factory. No other manufacturers have been located who made this tube.

 
Dimensions (WHD)
incl. pins / tip
x 108 x 45 mm / x 4.25 x 1.77 inch
Weight 51 g / 1.80 oz
Information source -- Collector info (Sammler)   TCA yahoogroup
 
mullard_australia_47m_fs.jpg
47M: Fin Stewart collection
Fin Stewart

 
47_7.png
47M
Emilio Ciardiello

 

from Just Qvigstad


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