MINI BENCH AMPLIFIER CIRCUIT
This mini audio amplifier will test the audio stages in amplifiers such as the front end of FM bugs. You can also use it on lots of our other projects as well a...
60 WATTS LINEAR AMPLIFIER
The 60 Watt linear amplifier is simple all solid state circuit using power mosfet IRF840. The IRF series of power transistors are available in various voltage a...
Video amplifier
I've seen an NE592 used as a video buffer amp at the end of a 75 ohm line. Used so that the 75 ohm line could drive all kinds of neat processing stuff without ...
Video amplifier provides digital gain control
The amplifier in Figure 1 originally served as the photomultiplier preamplifier in a Doppler system intended for eventual operation in the Martian atmosphere. T...
Simple Car Preamplifier and Artificial Earth
The preamp circuit is completely conventional, and by necessity is AC coupled throughout. The artificial earth is derived by two resistors (R1 and R2), which wi...
Symmetrical Audio Class A preamplifier
The preamplifier that appears in the figure is a completely symmetrical preamplifier, from the input as the exit and it works in Class A. It does not have someb...
Modular Class A Buffer preamplifier
A unit which is often very useful, if we need to isolate, in sound circuits, two stage between them. Then we can use this circuit which has an amplified unit, w...
Modular Preamplifier with IC Class A
An application, which is considered, of very good quality sound since the entrance transistors are working at Class A. The quality of sound depends to a large e...
Minimalist Discrete Hi-Fi Preamp
A preamp designed for the minimalist, and having no frills at all is the design goal for this project. It is designed as a preamp for the Death of Zen (DoZ) Cla...
Microphone pre-amp
This circuit is used to give out a microphone preamp to a amplifier which will power the signal. The NPN transistors used are ECG123A. This circuit is also a ol...
Low Noise Microphone Preamplifier
This is a design for a low noise microphone preamplifier, which is ideally suited to low impedance (600 Ohm nominal) microphones. One limitation is that it is n...
Single ic preamp
Another very simple audio preamp to build. all parts should be available at your very local electronics shop....
Stereo Preamplifier with Bass-boost
This preamplifier was designed to cope with CD players, tuners, tape recorders etc., providing an ac voltage gain of 4, in order to drive less sensitive power a...
Portable Microphone Preamplifier
This circuit is mainly intended to provide common home stereo amplifiers with a microphone input. The battery supply is a good compromise: in this manner the in...
Moving Coil Head Pre-preamplifier
A special category of preamplifiers, they are the preamplifiers that undertake they amplification the low exit of Moving coil head, so that its drive to a input...
Tube Line Preamplifier Project
The interest for circuits of tubes, remains big. Thus I will give completed in enough big degree, circuit of preamplifier. It is mainly constituted by the depar...
Dynamic Microphone Preamp
A low noise pre-amplifier suitable for amplifying dynamic microphones with 200 to 600 ohm output impedance. This is a 3 stage discrete amplifier with gain contr...
Preamplifier
This preamp is very simple, and will work under tough conditions. The input impedance is pretty high, so it won`t load down electric guitars. It will also ampli...
Hi-Fi Preamplifier
This circuit was submitted by Graham Maynard from Newtownabbey, Northern Ireland. It has an exceptionally fast high frequency response, as demonstrated by apply...
ECM Mic Preamplifier
A microphone amplifier that may be used with either Electret Condenser Microphone (ECM) inserts or dynamic inserts, made with discrete components. Both transist...