Push pull pp el84 tube amplifier schematic ecc83 input push pull pp el84 tube amplifier schematic with ecc83 input stage. Figure 3 illustrates a low power circuit 12 watts at less than 1 distortion which is similar to that used in many of the medium priced commercial amplifiers. Schematic for the valve amp.
This el84 push pull amplifier measured quite well.
5k ohm of impedance audio transformer using. High frequency response was flat to 25 khz and 3db at 35khz. Just same circuit of before. From the first post by gingertube edited.