Not sure what you mean by "hydrometers", they look very familiar to me & I knew them as Selsyns. I had a pair allegedly removed from an AA gun. I used them for turning my amateur radio mast. They are a sort of AC motor with stellate windings linked together as a pair & both energised by about 230v AC.
Once energised turning one Selsyn transferred the message to it's partner & vice-versa. It was very strange because if the wind blew the aerial round there was an identical movement on the indoor one. If I turned the control one I could feel the identical torque as if I was turning the mast by hand. If the AC supply was cut both units became flaccid & would spin freely. Quite fun devices to use.
Hi,
I'm french collector and I search 2 "hydromotors" because I have bofors without motors. Could you sell me 2 hydromotors (right and left) ?
Electrical question re our Bofors 40mm
in Artillery & Anti-Tank Weapons
Posted
Hi,
I'm french collector and I search 2 "hydromotors" because I have bofors without motors. Could you sell me 2 hydromotors (right and left) ?
Thanks