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500W 12 Volt to 220 Volt Inverter
Posted on Wednesday, November 17, 2010   •   Category: AC / DC Innveters


This is circuit Inverter 12VDC to 220V 50Hz 500W. It easy to make and low cost.


12V to 220V 100W Transistor Inverter
Posted on Wednesday, November 17, 2010   •   Category: AC / DC Innveters


12V to 220V 100W transistor based power inverter.


100W Power Amp
Posted on Wednesday, November 17, 2010   •   Category: Amplifiers


This is a 100W Transistor based Power Amp Circuit. It's an old circuit, but nice circuit amplifier. Uses transistors MJ15003 and MJ15004, power supply +38V,-38V 3A. Output power is 100W for 8 OHM Speaker.


OCL Power Amp
Posted on Wednesday, November 17, 2010   •   Category: Amplifiers


This is old circuit Power amp OCL, But easy circuit and very nice. To use for play music in your home. It low cost too. It use IC 741 or LF351(good) and Transistor x 4 (2N3055+MJ2955+BD139+BD140) and little component. Power supply volt +35V/-35V and 3A for Mono, 5A for Stereo.


Stereo Tone Control Circuit with Adjustable Bass-Treble
Posted on Wednesday, November 17, 2010   •   Category: Amplifiers


PCB Tone control adjustable bass-treble Stereo by IC LM348


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