Hi WM6, was referring the circuit to the GC1023 or MD1023.The model just before the one you have posted.
Had a good read on the user manual for latest Blisstool. Half those knobs make no sense. Really not needed.
The above detector you have presented you could do the same....example, take ground balance trimpot on circuit board and add a 3 position switch, then a course Pot setting, then also add a fine Pot setting
.......These added switches and pots are over the top and unnecessary.
Sido HH
Had a good read on the user manual for latest Blisstool. Half those knobs make no sense. Really not needed.
The above detector you have presented you could do the same....example, take ground balance trimpot on circuit board and add a 3 position switch, then a course Pot setting, then also add a fine Pot setting

Sido HH
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