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GOSSEN   mA / mV - METER   » MAVOMETER «



MILLI-AMP / -VOLT-METER   » MAVOMETER «   GOSSEN / Germany   (1930)
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Dimension ( W-D-H ) 85 mm x 125 mm x 40 mm  /  3_3/8" x 5" x 1_5/8"

Class 1 ;    2 mA / 100 mV  ( Ri = 50 Ω )   w/o Shunt / Ser.Resist.

R E M A R K S:                                           SN = 47170
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The rubber feet  had to be remade  out of an old leather belt.  The
»MAVOMETER«  came in a  cardboard case.  Originally  the instrument
get connected  by pushing the WHITE BUTTON  (w. Pre-TEST-Feature ).
For  CONTINUOUS  MEASUREMENTS  I have blocked it inside by a wedge.

EXPERIMENT:  SHUNT  = 32 Ω     ==>>  5 mA  Range  ( on "50" Scale )
             SER.R. = 3.75 kΩ  ==>>  7.5 V Range  ( on "75" Scale )

This  f a m o u s  bakelite  precision instrument  was a forerunner
of Multi-Meters:  A set of  SHUNTS & SER.RES. was available ...

      

                  ... like this in a BOX  (BUT NOT IN OUR MUSEUM !)
impressum:
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© C.HAMANN    http://public.beuth-hochschule.de/~hamann    11/12/13