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Thanks.
I use a 1986 vintage Astro Optical Supplies "Sampson" german Equatorial mount. Sadly no autoguiding possible, it uses a synchronous motor, and a drive corrector that varies the frequency from about 30 hz to 80 hz or so to make it go fast or slow for manual guiding using fast and slow buttons. The scope is the same age too, though its Sutching mirror has a pristine overcoated coating by Issac now.
Scott
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