Switch lever rheostat made by the Gebr. Kaiser company, Leipzig. For motor 220 volts, 1/5tel PS. | ||
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The two buttons on the right side allow to adjust two different motor speeds.
The lever is operated by a pneumatic motor. When activated from the music roll, it pulls the lever to the left and the motor will speed up.
This rheostat is from a red Welte push-up (Vorsetzer). | |||||||||