This is an active microphone preamplifier circuit for the particular condenser microphone. Generally, the condenser microphone has high sensitivity and the high output signal more than the other types microphone, but this type need to have a power supply. How it works In Figure 1 is circuit diagram of this project. The condenser microphone M1 […]
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LF155/LF156/LF256/LF257/LF355/LF356/LF357 FET Input Operational Amplifiers These are the first monolithic JFET input operational amplifiers to incorporate well matched, high voltage JFETs on the same chip with standard bipolar transistors (BI-FET Technology). These amplifiers feature low input bias and offset currents/low offset voltage and offset voltage drift, coupled with offset adjust which does not degrade drift […]
The AN6780 and AN6780S are ICs designed for general purpose long interval timers. They consists of an oscillator, frequency divider (flip-flop 15steps), output circuit, and power circuit. A cycle can be freely set with the external resistor (R T ) and capacity (C T ) of the oscillator. Features • High inflow and outflow current […]
This is a simple microphone preamplifier circuit that use 2 transistors are connected in the direct coupling, to respond the signal even better. How it works In Figure 1 the circuit diagram On collector of Q2 will feedback signal to the emitter of Q1, To frequency response is improved. And,at the same time R1 will […]
This circuit is used to Modify an Acoustic into the electric guitar on FM wireless transmitter system. It is small, cheap, easy to build. The acoustic guitar pickup of this circuit like working of the condenser microphone. Which is good because This system has less distortion than the general guitar pickup, that include of magnets […]