Tools & measurement - all subcategories
author: Smart Kit
visits: 168401
author: Circuit Exchange International
visits: 65097
author: Audioguru
visits: 44783
This circuit uses the popular and easy to find LM3914 IC. This IC is very simple to drive, needs no voltage regulators (it has a built in voltage regulator) and can be powered from almost every source.
author: Jonathan Filippi
visits: 42710
author: Serge Saati
visits: 39790
author: Andy Collinson
visits: 38378
author: Hawker, P Amateur Radio Techniques, Seventh Edition, RSGB, 1980
visits: 25940
author: Andy Collins' Circuit Exchange
visits: 25569
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Audio
