TL084 circuits JFET Input Op-amp datasheet
TL084: low noise OP-AMP in cheap. Use JFET input. Why popular in audio & a lot of circuits: wide bandwidths and fast slew rates. Example:
Simple condenser mic preamp circuit using 2N3904
If you want to learn about microphone or little use. This is a simple condenser MIC preamp circuit diagram. It changes the sound to electrical signals before sending to a…
Low noise microphone preamplifier circuit using NE5532
This is Low noise microphone preamplifier circuit using IC-NE5532, M5218P. Simple circuits but high quality balance-Unbalance Input for dynamic microphone
Active microphone preamplifier using LF356
The active microphone preamplifier circuit for the particular condenser microphone, high sensitivity - high output signal than other, but need power supply..
Dynamic Microphone Preamplifier circuit using C945
The Dynamic Microphone Preamplifier circuit. So low noise signal,use three transistor (2SC945, or 2C1815 or 2SC828) is transistor amplifier with a low noise [...]
Cheap & Small hearing aids circuit project
This is cheap & small hearing aids circuit,use increase sound to head phone with 1.5V AA battery, and all transistor and a few components with small PCB [...]
Super digital echo stereo mixer circuit projects using KT5211P
This digital echo stereo mixer project is circuits pioneering in echo circuit before using IC-BBD to the digital system. By using digital echo circuit
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