LITE LS-7B Tube Per Amp


LITE LS-7B Tube Per Amp

Modify from classic Marantz 7 preamp, circuit using two 12AX7 and one 12AU7, to lower the output impedance, a cathode follower is used.
A tube high voltage regulator and rectify using 5687
a time delay circuit, a heater voltage regulator using LM317.
digital remote volume control and input select


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