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  • Audio preamplifier circuits

    The circuit is so simple that there is little to say about it, but it gives very good results. Tr1 is operated in grounded base mode with input to its emitter to give low impedance input. The values shown give correct operation from 9v. If operating from other voltages you may wish to alter the […]

  • Hi-Fi Preamplifier

    VN:F [1.6.9_936]please wait…Rating: 0.0/10 (0 votes cast)VN:F [1.6.9_936]Rating: -1 (from 1 vote)

  • 3 – 5 Watt Class-A Audio Amplifier

    Behaves like a one-valve operated amplifier. Simple circuitry – No cross-over distortion. VN:F [1.6.9_936]please wait…Rating: 0.0/10 (0 votes cast)VN:F [1.6.9_936]Rating: 0 (from 0 votes)

  • 10W Audio Amplifier with Bass-boost

    High Quality, very simple design. No preamplifier required. VN:F [1.6.9_936]please wait…Rating: 0.0/10 (0 votes cast)VN:F [1.6.9_936]Rating: 0 (from 0 votes)

  • 60 Watt MosFet Audio Amplifier

    High Quality, powerful unit: 90W into 4 Ohm load. Also suited as guitar or bass amplifier. VN:F [1.6.9_936]please wait…Rating: 7.0/10 (1 vote cast)VN:F [1.6.9_936]Rating: 0 (from 0 votes)

  • 45 Watt Class B Amplifier

    45W into 8 Ohm – 69W into 4 Ohm. Easy to build – No setup required. VN:F [1.6.9_936]please wait…Rating: 0.0/10 (0 votes cast)VN:F [1.6.9_936]Rating: 0 (from 0 votes)