The 6-inch Goto clock drive is powered by a falling weight, just like a grandfather clock. The falling weight is regulated by a ball governor, seen here in the enclosed glass case. It can truly be said that this scope has balls!
-------------------- I don't get no respect, but my scopes do! ----------------------------------------------
1961 Swift 60mm model 839 (2); 2003 TV-102/GM-8; 1959 8" f/6 Treckerscope; 1959 8" f/7.4 Murray Scope; 1959 Fecker Celestar-4; 1978 4" Edmund Astroscan; c. 1986 4-inch Celestron-Vixen SP-C102; c. 1950 20X60 Saturn spotting scope; 1963 7X50 Nippon Kogaku binoculars; Unitron #114 alt-az mount (Swifty-tron)