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Mar 12, 2020 · Set the multi-meter to the 20 volt DC setting and put the probes on the two solder pads and check the reading. If you get somewhere around +4 to +6 volts, the red (positive) probe is touching the positive (+5 volt) wire). If you get a negative voltage reading, just reverse the probes.
Jul 1, 2013 · There are three basic methods of guiding with various pros and cons: 1. Using a separate guide-scope and guide camera. A second, cheap telescope or finder and a cheap (ish) guide camera is mounted piggyback on top of the imaging scope, or side-by-side using a dual bar. Pros: Relatively cheap to purchase.
