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GEM, no drive 1963-1970 4.25" Newtonian
GEM, clock drive 1970-1972 4" refractor
Alt-Az (photo tripod) large binos 1977-1985
EQ, no drive 1982-1985 4" SCT
GEM no drive 1985-1986 5" newtonian
EQ, no drive 1985-1989 90mm Mak
Alt-Az, electric drive 1989-1992 90mm Binos
GEM, clock drive 1986-1992 6" newtonian
GEM, clock drive, 1992-1993 6" newtonian
Alt-Az (Fork), computerized GoTo 1993-2004 8" SCT
GEM, clock drive 1997-2004 5" Mak
Alt-Az (Sky Window), binos 2003-now 80mm Binos
Alt-Az (Dobsonian), with digital setting circles 2004-now 12.5" Newtonian
GEM, computerized GoTo 2004-now 5" Mak
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