The Powerguide II DC drive/quartz-controlled drive corrector is designed to replace the standard AC-powered motor drive in Questar telescopes. It allows you to operate the Questar’s drive motor away from all AC power sources, using an ordinary 9 volt battery. It also provides drive corrector functions for astrophotography.
This version of the Powerguide II is factory installed in place of the standard equipment AC drive motor at the time your Questar telescope is manufactured. It also can be retrofitted to older AC-drive Questar scopes, but at a higher cost and with additional freight costs both to and from the Questar factory.
The Powerguide II powers the Questar at a sidereal tracking rate for up to 50 hours from a single 9-volt transistor radio battery, freeing you forever from the need to stay near an AC outlet to observe. Pushbuttons on the Powerguide II hand control allow single axis guiding in right ascension for astrophotography (or dual axis by adding an optional declination motor). Pressing the east and west buttons simultaneously when the scope is turned on converts the drive to a lunar tracking rate. Pressing the north and south buttons simultaneously when the scope is turned on converts it to southern hemisphere operation, allowing you to use a Questar anywhere in the world without having to worry about finding the proper power frequency or voltage. With a Powerguide II, the Questar is truly a universal telescope.
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