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History of the manufacturer  

Allen-Bradley Co.; Milwaukee, WI

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Name: Allen-Bradley Co.; Milwaukee, WI    (USA)  
Abbreviation: allenbrad
Products: Model types

Allen-Bradley Co.; 278 Greenfield Ave., Milwaukee, WI


This manufacturer was suggested by Hans-Joachim Korn † 16.11.15.

Some models:
Country Year Name 1st Tube Notes
USA  25 3 Tube Amplifier   Resistance coupled 3 tube amplifier. 
USA  72 Zähler-Timer 234   100 MHz Repetitionsfrequenz; 8-stellige 7-Elementanzeige mit/ohne Speicher; Mittelwertbild... 
USA  23 Bradleyleak Grid Leak Unit [1923]   Bradleyleak. A compact unit embodying a grid condenser and a variable leak. 
USA  25 Bradleyleak Grid Leak Unit [1925]   Bradleyleak Grid Leak Unit. Variable grid leak with a grid condenser in a compact unit. 
USA  25 Bradleydenser Variable Condenser   Bradleydenser Variable Condenser.     
USA  31 Bradleyometer   The resistance element of the Bradleyometer was made up of a stack of about 50 alternating... 
USA  60 Type J Potentiometer   Resistance: 5000 Maximum power: unknown Shaft ... 


Further details for this manufacturer by the members (rmfiorg):

Radio Broadcast, Jun. 1923, p. 175tbn_usa_allen_bradley.jpg
USA: Electronics International (magazine), december 8, 1972 Nº 26, vol. 45tbn_usa_allen_bradley_advice.jpg


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