MS-499 POST OFFICE BOX

A precision instrument for resistance work. Plug pattern bridge
with 16 non-inductively wound coils 1, 2, 2, 5, 10, 20, 20, 50, 100,
200, 200, 500, 1000, 2000, 2000, 5000 ohms. Two proportional
arms each with coil of 10, 100 and 1000 ohms. Both proportional
arms are accommodated by the back row of plug connections and
other resistance from 1-5000 ohms are connected by two front
rows, with an infinity gap. Total value 11110 ohms. Heavy brass 4
mm. socket double terminals. In polished teakwood box with
hinged lid and ebonite panel figured and lined in white to show
circuit connections. Dimension – 350 x 200 x 150 mm. length x
breadth x height.