Ming-Da MC300 Preamplifier

W here does one start with this preamp ? Its history ? It doesn’t have much. Was designed by MingDa in China and for once not copied from an existing design. To be honest I looked far and wide and have yet to find a 300b/6SN7 preamplifier. Amplifier ? Yes indeed I found a few 2.5W to 3.5W examples. So …