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Posts tagged Electronics Diagrams

Good Site to find Circuit Board Schematics or Pin-Out diagrams for IC chips?

Seraph asked: Is there a place on line where you can go to find circuit board schematics for things, like a database or something. There have been many times when I take apart something, like a TV for example, and cant find where the power inputs go to replace a pulled out wire. I know […]

Comparator OP Amp

Comparator OP Amp using IC AD820, AD539,  AD827, AD538 The AD820 is a low power FET op amps can operate from supplies of 5.0 V to 36 V, or dual supplies of 2.5 V to 18 V. AD820 to accommodate input signals below ground in single supply mode. Output voltage swing extends to within 10 […]

Switching driver Circuit

Switching driver Circuit using 2N2222, Relay, LDR

Mini Amplifier

Mini Amplifier Audio circuit using LA4422 Mini Amplifier Audio circuit using LA4422 Mini Amplifier R 1,2 …… 10K R 3 …….. 2K2 VR 1 ……. 50K VR 2,3 ….. 100K C 1 …….. 22 nF C 2 …….. 10 nF C 3,8 …… 100 nF C 4 …….. 22 nf C 5,6 …… 100 uF […]

Audio test oscillator circuit

Audio test oscillator circuit using CD4584, 74c14

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