50mW amplifier schematic
Here is a little audio amplifier similar to what you might find in a small transistor radio. The input stage is biased so that the supply voltage is divided equ...
Guitar tube amplifier Peavey schematic
Blue VALUES replaced by values in RED. Blue COMPONENTS removed from circuit. Red components added to circuit....
Pro Maniac Guitar tube power amplifier II
This schematic is an impruved version of the Pro Maniac Guitar tube power amplifier....
Pro Maniac Guitar tube power amplifier
For SR AB763 driver replace: 25k pot, 0.1uF cap and 4k7 resistor with 100 ohm resistor to ground. 56k resistor with 820 to 4k7 resistor. ...
Trainwreck Blues tube amplifier for Guitars
This revision reduced the signal level and
treble response in the preamp for a smoother
sound in both cathode and fixed bias modes.
The power supply was also...
Tube circuits for Guitar Amplifiers
The IRF820 MOSFET has a voltage rating of 500v, it should work well in preamp stages of most tube amps. The 100 ohm resistor is there to suppress H.F. oscillati...
Linear Voltage multiplier circuit
The aim of this project was to develop a linear analogue amplifier designed for laboratory use. This amplifier has to realise a voltage amplification of 10x and...
100W Mosfet Power Amplifier
In this circuit we use the 2SK1058 and the 2SJ162 Mosfets. This could be avoided by a fairly simple bootstrapping circuit, but the improvement in maximum output...
Mosfet amplifier schematic 25 Watt
Can be directly connected to CD players, tuners and tape recorders. Simply add a 10K Log potentiometer (dual gang for stereo) and a switch to cope with the vari...
Power Amplifier 2x30W
Completed STK465 is an amplifier of acoustic frequencies that offers qualitative output, using minimal exterior elements. Substantially he is one of big complet...
Loudspeaker Box Amplifier schematic
This original design is a variation on a well-known design, examples of which can be found in a great many texts. My variation was to add a second differential ...
2x 2,500W RMS stereo amplifier
This circuit is of an 2x 2,500W RMS stereo amplifier, super-light and without switching-mode power supply. The circuit just shows a channel, and the power suppl...
Basic LM386 audio amplifier schematic
The Tiny Audio Amplifier kit is a good choice for battery operation. It is based on LM386 IC. Power supply - 6 - 12 VDC. Output power - 1 W, 8 Ohm. The quiesce...
Car 20W audio booster amplifier
This circuit is a 20W Audio Amplifier kit, based on the TDA2005 IC, a class B dual audio amplifier, specifically designed for car radio applications etc. Power ...
2x300W or 600W Power audio Amplifier
The circuit is based around {LM4702}manufactured by NATIONAL semiconductors&{MJ11029-MJ11028} by ON semiconductors It is a high fidelity audio power amplifier. ...
Stereo Audio Amplifier 2x2W or mono 5W ( TEA2025 )
These circuits are based on TEA2025 is a monolithic integrated audio amplifier in a 16-pin plastic dual in line package manufactured by UTC .Circuit has an Inte...
Selectable sensitivity Preamplifier
Most audio amplifier systems must have preamplifiers with many different characteristics. These include high-gain linear response for magnetic microphones, low-...
2 watt Stereo audio amplifier
A general purpose audio power amplifier is a must have for the electronics amateur. It's not a good thing to use your HiFi set for an experiment, when there's a...
Mini Headphone Amplifier
SW1 bypasses the crossfeed network. I have reconfigured the original crossfeed schematic so that now the 100k resistor always bridges the bypass switch and ther...
Class-A audio Amplifier circuit
The circuit presented is experimental, and should provide some fun to build and play about with. It has been built and tested, and works very well indeed. Pleas...