Very large, practical demonstration wooden laboratory Volt meter

We have a run of these particularly large analogue electrical meters which would typically have been used on the teacher's bench so that everyone in the class could read where the needle is pointing to on the scale during science classroom experiments. We can supply an external "wobble box" that can be connected to swing the needle around. Without this, the needles will always be stuck at zero. Alternatively we could make up a remote control knob giving you full manual control. These are sensitive meters so blindly connecting these up to your own power supply could quickly destroy them if you're not careful.

Prop ID: 3569

Width: 32 cm

Height: 33 cm

Depth: 15 cm

Age: 1960s

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