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Archives for November, 2009

Make a simple power amplifier – LM 380

This is Make a simple power amplifier – LM 380. Almost all the components are contained in a single 14 pin package and requiring few external components. The supply voltage can be from about 8 volts to not more than 15 volts. The device is supposed to have internal current limiting and be almost indestructable. […]

Block diagram of a basic synthesiser

Here is the block diagram of a basic synthesiser. The “R-counter” generates the reference frequency. In the MC145152-2 you have about 3 different options. In mine you will have over 2000 different options. The reference frequency can be interpreted as the channel-spacing of the final synthesiser. The “N-counter” divides the output of the external voltage-controlled […]

Practical Application – Intercom Circuit

The simple switch shown so far can be used in simple audio applications. Here is a simple “all-master” intercom circuit that steers an audio amplifier towards one of several distant receivers. All units shown are identical and are connected to the same multipair cable. One battery powers all units. You press the button corresponding to […]

2SA1943 – 2SC5200 Schema and PCB Layout for Audio

2SA1943 – 2SC5200 Schema and PCB Layout for Audio

25W Audio Amplifier Circuit

25W Audio Amplifier Circuit 25W Audio Amplifier Circuit using STK4142 II

kit power class d 3000w

  Here to look Power Class D kit price

Making Audio amplifier using Mosfet 2sk79 K312

Mosfet amplifier circuit using 2sk79 K312 Audio amplifier design audio input class d audio amplifier diode logic circuits MD7120 mosfet transistors sigma delta modulator using 2sk79 K312

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