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TTL RS232 driver circuit and Protect the PC from direct connection to hazardous voltages

November 20, 2009 · Posted in Switches · Comment 

TTL RS232 driver circuit. TTL driver circuit consists of 2 transistors and a few other passive components, a negative voltage for RS232 logic generated by the capacitor C7. TTL to RS232 driver circuit and a variable voltage output driver has a parallel termination impedance to match cable and TTL driver circuit, and provides the best […]

Simple Audio Indicator TAA300

July 16, 2013 · Posted in Simple, Spiker · Comment 

Simple Audio Indicator TAA300 very simple audio oscillator electronic project can be designed using IC TAA300 This circuit is intended to indicate the power output level of any audio amplifier. Simple circuit to power your 9 vol

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