Z E R O - C E N T E R MICRO-AMPERE METER SIEMENS & HALSKE (1960) *********************************************************************** Dimension: ( W-D-H ) 110 mm x 145 mm x 70 mm / 4_1/4" x 5_3/4" x 2" Class 1 +/- 30 Scale = +/- 10.5 μA ( 1 Mark = 0.35 μA / 60 Ω ) The bakelite housing is the same as the »MULTIZET« instruments have. It explains the "Big Circle" on top. Remarkable is the ZERO-MAGNIFIER. Because of its EXTREME SENSITIVITY, it is recommended to SHORT-CUT the input-plugs when it is not in use (= "Induction-Damping" when moved !) R E M A R K S T O R E S T O R A T I O N : ----------------------------------------------------------------------- Also this special μA Meter came with rattling glass and crumbled black glass-glue pieces on the scale. After breaking the seal, it was a mass to remove the sticky black glue from the edges of the bottom-plate and housing. After disassembling, removing all dirt, a frame of black card- board was made to seal the cleaned glass ( holded inside with springs ) impressum: *********************************************************************** © C.HAMANN http://public.BHT-Berlin.de/hamann 04/18/12 |