Wiparat Circuit Electronics

Circuit basic dot-bar Display for LM3914

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George Katz of Balgowlah Boys high in Sydney presented a solid state oscilloscope. He says “probably the best advantage is its very small size and the fact that it can run off the power supply of the circuit being tested. Although it has a low frequency range, it can still be used for most circuits. [...]

Source : Circuit Test Battery by LM3914