Randy

Remember the motor had no load on it, if you took the prop off, a watch battery would spin a S300 motor fast, but put the prop back on and try it again, you would then have a little Hiroshima.

You know that is funny, I remember those batteries, and I too wondered. At that time I did a lot of service work for Polaroid ( they were down in Cambridge Ma , I remember asking, but I don't remember the response ( it must not of been good because I never followed through )