We made a nice tribute video, and I gave a eulogy

The Keely Hydro Pneumatic vacuu motor was self running , performing work during demonstrations. Way later on, the new owner , with help from engineer,compared the brass mechanism with the original Patent application workings, taking it apart, , and found that they matched. Keely reissue of Patent application with the missing investor's names was not done. See model on You tube, and the documentation. Keely did have some other devices that actually worked , such as the high lift water pump flaps unit, wall and quartz pulverizer, higher quality microscope , hydrogen generator, and US Patent on dual use flywheel that I saw in city library . There was late 1800's signed documents made of visitors present, after a Keely demonstration of gravity control of heavy steel unit.
Another worker in Africa many years later,duplicated the hydraulic water motor. The modern history books and magazines only mention the fraud involved of some displays that were upstairs second floor Philadelphia workshop.

Mr. Pond of S.V.P., has on line catalog of reprinted original documents about Keely's work for purchase.

Study the Fraud Expose from Jan 1899, and then decide how to go forward. Purchase Keely book references such as Universal laws, Keely and his discoveries, the Snell Manuscript - summary of 3 Keely books, Free Energy Pioneer, and see catalog of documents from S.V.P. from Mr. Pond. You should pick one device and do extensive research. I suggest the self running hydro pneumatic motor with Patent application data. True mechanism using inherent developed water hammer 50 lbs pressure. Had rotary 4 way shock valve and flywheel. Was shown sawing wood. Man in Africa later on made one. Original Keely brass machine was in museum, then sold, then stolen, then returned and examined , and matching, according to the Patent application tech data . You could also built one with your own modifications as small model. I got into this Keely study long ago, as I was intrigued about Keely easily making hydrogen gas fuel from water using frequencies, ratios , vibrations from tuning forks.

Is there a reason why have to be alternator with brushes?

Resonance with 2.5V input.

120kV P-P