The Powerguide III touch-screen DC drive/quartz-controlled drive corrector is designed to replace the standard AC-powered motor drive in older 7” fork-mounted Questar telescopes (new Questar fork mounts come with the Powerguide III already installed). It allows you to operate the Questar’s drive motor away from all AC power sources, using an ordinary 9 volt battery, or an external 9-15VDC power supply. It also provides drive corrector functions for astrophotography and has an autoguider port.
The Powerguide III must be installed by Questar factory technicians in place of the existing AC drive motor in the drive base of the fork mount of your older 7” Questar telescope. It cannot be installed in the field. This requires that your fork mount and drive base be shipped back to Questar for the installation. Fully insured shipping to the factory is the buyer’s responsibility. In addition, return shipping will be added. Questar's return shipping is $175 to the East Coast, $185 to the Central US, and $240 to the West Coast.
The illustration above is as of 4/16 and may change when the Powerguide III design is finalized. The Powerguide III is still under development and final specifications and functionality have yet to be established. Earliest availability for 7" Questar retrofits is expected to be September 2016, but may be delayed.
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