Antique radios, Old Time Radios

25Y5

Country:	United States of America (USA)		Brand:	Common type USA
			Tube type:	High-vacuum Rectifier Power-supply

Tube ID = 3297


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Identical to	25Y5 = 25Z5
Similar Tubes	Normally replaceable-slightly different: U31_USA
First Source (s)	07.Nov.1934 : Electron Tube Registration List
Successor Tubes	25Z6G

Base	6-Pin-Base U6A, old, USA (Codex=K)
Was used by	Radio/TV-reception etc.
Filament	Vf 25 Volts / If: 0.3 Ampere / -: Indirect / -: Series, AC/DC /
Description	Whith two independed diodes to be used as voltage doubler or for higher current. NOT intended as full wave rectifier. [JR] Text in other languages (may differ)
Tube prices	0 Tube prices (visible for members only)
Literature	Essential Characteristics, GE 1973 Taschenbuch zum Röhren-Codex 1948/49


	Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse Karel De Reus

ARRL Handbook 1972
Michael Schlör

Usage in Models (calculation each 25th of the month)	1= 1933?? ; 1= 1933 ; 3= 1935? ; 3= 1935 ; 2= 1936 ; 2= 1937 ; 1= 1938? ; 1= 1945?? ; 1= 1946 ; 1= 1948?? ; 3= 1948 ;
Number of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe): 19

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25Y5

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