5 W LABOR PRECISION POTENTIOMETERS BECKMAN / USA (1965) ***************************************************************** 10-Turn (= 10*100 Marks) High-Resolution Potentiometers/Resistors 100 Ω ; 1 kΩ ; 10 kΩ ; 100 kΩ Serie »A« with »RB« DUODIALs The SCHEME of the MODEL »A« HELIPOT ... As the name "HELIPOT" associates: On a helical shaped insulator a thin resistance wire is wounded on its full length . When the dial is turned, the (3rd) contact moves along the helix ... Have a look at R-"DECADES" and an -"OCTADE" impressum: ***************************************************************** © C.HAMANN http://public.BHT-Berlin.de/hamann 04/11/09 |