Practical Wireless 25 circuits for amateurs - KT66 HiFi Valve Amp 1962

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1962 Practical Wireless 25 selected circuits for amateurs - KT66 HiFi Valve Amplifier Design. Designs include: Transistor Personal Receiver - A stereo Amplifier - 9 Watt Audio Amplifier - 15 Watt Quality Amplifier (KT66)- Quality Preamplifier - Record Player Amplifier - Short Range Pocket Tramsmitter - Midget Valve Voltmeter - Audio Signal Generator and much more.