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ID = 28252
Brand: Telefunken Italia, Milano
Tube type:  Screen-grid Tetrode   Universal 
Identical to RENS324 = FY224 = SY224 = 224 = 24
Similar Tubes
Normally replaceable-slightly different:
  22AC ; 24A ; 624 ; A224 ; VT-28
First Source (s)
May.1929 : -- Collector info (Sammler)

Base UY-Base, 5 Pins (USA, April 1927) Top contact with a cap.
Was used by Radio/TV-reception etc.
Filament Vf 2.5 Volts / If 1.75 Ampere / Indirect / Specified voltage AC/DC

Telefunken-Nachbau der USA-Type 24


448~~2.png RENS324: Telefunken Werkstattbuch
Wolfgang Bauer

More ...

Just Qvigstad
Usage in Models 1= 1932

Quantity of Models at with this tube (valve, valves, valvola, valvole, válvula, lampe):1

Collection of

Collection of a member from D


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