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ID = 28920
United States of America (USA)
Brand: National Union Radio Corp.; Orange (NJ)
Tube type:  Screen-grid Tetrode   RF/IF-Stage 
Identical to NY64
Similar Tubes
Other characteristic (electr. data):
First year 1930 -- 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 6.3 Volts / If 0.4 Ampere / Indirect / Parallel, (AC/DC)

The first series of tubes for car radios - with 6.3-Volt-heater - but 0,4 A: NY64, NY65, NY67 and NY68. They "naturally" can also be used for mains current. Introduced by National Union, May 1931

Dimensions (WHD)
incl. pins / tip
x 112 x 40 mm / x 4.41 x 1.57 inch
Weight 39 g / 1.38 oz
Information source -- Collector info (Sammler)   
NY64: Bob Millard collection
Fin Stewart

NY64: Fin Stewart
Fin Stewart


from Just Qvigstad

Usage in Models 2= 1930 ; 1= 1932?

Quantity of Models at with this tube (valve, valves, valvola, valvole, válvula, lampe):3

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