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Warning: mysql_fetch_array() expects parameter 1 to be resource, boolean given in /home/admin/domains/scienceflicks.com/public_html/bcms/bcmscore.lib.php on line 1616 PPM Bargraph, Op-Amp, Split PSU and Gregorian Chant in Electronics Technology Videos | Science Flicks
PPM Bargraph, Op-Amp, Split PSU and Gregorian Chant
The LM3915 sound level meter is vocoderised and becomes a peak programme meter. I explain split power supplies, alternating current audio signals, and why op amp circuits often require positive and negative power supplies. Then I start singing. All very weird.
