Low Battery Indicator Circuit
I'm trying to refresh my OP-1 because the battery level display is strange. The second picture is the screen display that is left displayed to use up the battery… : r/OP1users
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Simple Battery Level Indicator Circuit using Op-amp
Amazon.com: teenage engineering OP-1 Portable Synthesizer, Sampler, and Controller with Built-In FM Radio and 4-Track Tape Recorder - 10 Year Anniversary : Musical Instruments
Simple Battery Level Indicator Circuit using Op-amp
Simple Battery Level Indicator Circuit using Op-amp
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