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 […]
Archives for June, 2014
Switch Wiring Diagrams
Electronic Component Schematic Symbols
Make Electronics Schematic Diagram 3 lines mixer you can modify this circuit become more than 3 lines mixer. Just add and repeat the input parts (P=10K R=22K).
DTMF control RELAY SWITCHING circuit using M8870, 4013, BC548
Temperature Sensor Temperature Sensor electronic circuit The USB Humidity measures the relative humidity and air temperature though a hole in the middle of the housing. The device contains a calibrated precision sensor with a measurement accuracy of ±2 % relative humidity and ±0.4°C in most part of measurement range.The size of the device is about […]
3 channel microphone circuit using BC550C, BC547, BC557 P1,P2,P3______5K R1,R11,R15____180K 1/4W R2,R12,R16____2M2 1/4W R3,R13,R17____750R 1/4W R4,R14,R18____1K 1/4W R5____________15K 1/4W R6____________220R 1/4W R7____________1K5 1/4W R8____________820R 1/4W R9____________150R 1/4W R10___________100K 1/4W C1,C6,C8______1µF C2,C4,C7,C9___100µF C3,C5_________220µF Q1,Q4,Q5______ BC550C Q2____________ BC547 Q3____________ BC557