It is possible to simplify the assembly to have a cheaper version of 40W / 2 ohm (24W / 4…
This is another circuit RF amplifier that I took from the Encyclopedia of electronic circuit Volume I. The circuit is quite hard to build since the components is complex and…
This amateur radio amplifier circuit this inexpensive and easy to build. This circuit uses two MRF454 NPN transistors. Specified at…
This is 100 watt linear amplifier and may be built using two MRF309 transistors in push-pull, requiring only 16 watts…
This bridge power amplifier, without great pretensions, is simple to perform, and works with a single power supply of 18…
The mic preamplifier described here is designed to connect a small electret microphone. The Electret microphone pre amp scheme is…
Mic Preamplifier described here is designed for dynamic type microphones, the impedance between 200 ohms and 1 ohm. Its uniqueness…
A small stereo headphone amplifier cheap and very nice features (without HIFI). It only uses a single power supply value…
Here's a little extra amplifier and really easy to make and inexpensive. It can also serve for a stereo headset…
The Absolute Value Amplifier circuit based operational amplifier chip 5535. This circuit can provide a positive output voltage for both polarity…