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Simple electronic audio communication

Simple electronic audio communication simple intercom system schematic Audio communication Principles of equipment for communication with electronic audio devices, and this is the principle means of electronic communication cables Simple electronic audio communication

60W Audio Amplifier Circuit STK4392

60W Audio Amplifier Circuit STK4392 Class G/H headphone amplifiers. No compromise to power/performance on Sanyo Amplifiers ISO 9001 certified, full warranty

Audio Amplifier Circuit using STK459

Audio Amplifier Circuit using STK459

CB RADIO or 80 METER HAM RADIO circuit diagram

CB RADIO or 80 METER HAM RADIO circuit diagram using TR 2N2222, C460, C372,  C1162,  C1173,  C1226, D476,  D68, D67, C901

Make Wireless portable with CA3140,4069,4098

Parts: R1,R2,R19_______1K 1/4W R3-R6,R13,R17_100K 1/4W R7,R15__________1M 1/4W R8_____________50K 1/2W R9____________470R 1/4W R10___________470K 1/4W R11___________100K 1/2W R12___________220K 1/4W R14,R16________68K 1/4W R18____________22K 1/4W R20___________150R 1/4W C1,C7_________100µF 25V C2,C3_________330nF 63V C4-C6___________4µ7 25V D1,D5______Red LEDs D2,D3________1N4148 75V D4________BZX79C7V5 7.5V 500mW IC1__________CA3140 or TL061 IC2____________4069 IC3____________4098 or 4528 Q1,Q2_________BC238 25V 100mA NPN L1_____________10mH miniature Inductor BZ1___________sounder (incorporating 3KHz oscillator)

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