Transistor stereo bass booster
This is a bass booster circuit that use transistors as base. It is designed to increase a low frequency of audio on cheaper than ICs or normally circuit.
100w amplifier circuit with PCB
This 100W amplifier circuit by transistors, but very well OCL amplifier schematic.Use transistor MJ15003,MJ15004 as main. Power supply +38V 0 -38V 3A. [...]
Simple transistor intercom circuit
See simple intercom circuit using transistors and a few parts. So easy build and cheaper than ICs. For a small home and learning.
The twin-T complementary amplifier circuit
The twin-T complementary amplifier circuit with filter selector
The filter circuit of this main circuit will sent to through to the signal that middle frequency. At the same time is attenuated the others frequency into input signal to…
4 transistor audio amplifier circuit
This is a 4 transistor audio amplifier circuit. Which is a 4-transistors complementary push-pull amplifier, that shows the basics of audio amplifier design.
2N3055 Amplifier circuit with PCB, 50W to 60W
This is three Simple 50w OTL audio amplifier circuit by 2N3055, can build easy and cheap, It's durable and very loud sound , Not needed speaker Protection. [...]
2N3055 amplifier circuit, 30w OCL integrated amp with PCB
The integrated amplifier that is smaller. For listening in a small room. Must have good the sound quality. Low noise and cheap.
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