[CQ-Contest] Prosistel PST 71 help please

timonkruijer at gmail.com timonkruijer at gmail.com
Mon Jun 22 07:04:24 EDT 2020

Hi all,


One of my old model PST 71 Prosistel rotators (sold early in the USA as Big
Boy rotators) has a problem with the gearbox between the 48v motor and the
rotor itself.

Prosistel Italy does not have any information about this old model any more.

I know it is  Brown - PMZ gearbox. Does anyone has more information? Type of
gear how many reduction? 

The is no plate with text on it anymore.


73 Timon PA1T

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