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AZ31

Country: Great Britain (UK) Brand: Mullard Radio Valve Co. Ltd.; Tube type:  Full-Wave Vacuum Rectifier   Power-supply  Identical to AZ31 Similar Tubes Normally replaceable-slightly different:   U143 Other base:   AZ1 First year 1938 -- Collector info (Sammler) Base Octal (Int.Octal, IO) K8A, USA 1935 (Codex=Vy) Filament Vf 4 Volts / If 1.1 Ampere / Direct Tube prices 2 Tube prices (visible for members only) Information source Taschenbuch zum Röhren-Codex 1948/49   Design = Mullard AZ31: Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse Karel De Reus †     More ... AZ31: RTT 1974 (Franzis) 13. Auflage Martin Renz More ... Just Qvigstad AZ31: Ratheiser RTH,3.Aufl.,1964 Egon Penker More ... Usage in Models 2= 1938?? ; 1= 1938 ; 1= 1939 ; 1= 1940?? ; 1= 1940? ; 1= 1940 ; 2= 1941? ; 1= 1941 ; 2= 1942?? ; 3= 1945?? ; 1= 1945? ; 7= 1945 ; 2= 1946?? ; 4= 1946? ; 15= 1946 ; 2= 1947?? ; 6= 1947? ; 26= 1947 ; 8= 1948?? ; 8= 1948? ; 24= 1948 ; 6= 1949?? ; 10= 1949? ; 25= 1949 ; 4= 1950?? ; 5= 1950? ; 15= 1950 ; 1= 1951? ; 11= 1951 ; 3= 1952? ; 4= 1952 ; 1= 1954?? ; 1= 1954 ; 2= 1955?? ; 1= 1955? Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):207 Museum "Wireless In Wales Museum" Collection of Wilfried Hofmüller (A) Alexander Hofer (A) Bruce Wilkie (AUS) Christian Schaufelberger (CH) Bartosz Szwed (GB) Jose Luis Villabona Horreo (E) Timo Rantasaari (FIN) Fernando Monteiro (P) João-Afonso Santos (P) Karlheinz Fischer (D) Jacob Roschy (D) Collection of a member from D Peter Pfeiffer (D)

AZ31

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Hits: 3901     Replies: 0 AZ31 (AZ31)
Paul E. Pinyot † 2013 29.Jun.09	1 AZ31 (AZ31)  This tube tests good on a Heathkit IT-17 emissions tester with the 5Y3 set up and filiment set on 4.2 volts.

 

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