The involvement of the preamplifier This is a long-established involvement with tubes type ecc83. This involvement is used by legendary guitar amps Marshall JCM 800 After studying the issue, I decided for the implementation of digital audio amplifier using... Electronics Projects, TPA3106D1 Class-D Power Amplifier Projects Ecc83 JCM800 Preamp "audio amplifier circuits, class d amplifier circuit, ic amplifier, " Date 2019/08/04