Want to know the coil inductance?

[yhl]

Search Coil, 20cm diameter of 25 windings of insulated copper wire (~22AWG)can be used in the Gary PI 1 circuit it?

[WM6]

Search Coil, 20cm diameter of 25 windings of insulated copper wire (~22AWG)can be used in the Gary PI 1 circuit it?

Inductance remain the same for all coil diameters. Have already been answered in one of many threads you started.

[chemelec]

Search Coil, 20cm diameter of 25 windings of insulated copper wire (~22AWG)can be used in the Gary PI 1 circuit it?

ANY COIL INDUCTANCE BETWEEN 100 to 500 uH is Acceptable on my detector.
And I Recommend a DC Resistance of between 0.75 to 1.2 Ohms for my detector.

[yhl]

I want to know your detector. 8-inch coin detection buzzer indication
Or instrument instructions. ?

[yhl]

Do indicate a cry sounding buzzer