Building a BFO metal detectorReference coils calls for,AWG #30dimensions: 50 mm height x .5 mm width120 turnsI'll be using AWG #24. However, AWG #24 is .5 mm in diameter. If you do the math, that's120 turns x .5 mm 60 mmSo my coil will be 60 mm. THAT'S NOT WHAT THE ENGINEER CALLS FOR. I'm 10 mm too long, therefore I have an extra 20 winds (10 mm of 24 awg 20 winds)CAN I OVERLAP?Problem is the reference coil (this coil) is fitted into a water fitting. The water fitting is threaded on the outside fitted with a nut. When you move the nut up down the water fitting, it changes the frequencyWon't this be an issue?THanks
Capacitors and inductors within the circuit will make the viberations at desired frequency to drift at slash resistance than different (undesired) vibrations. As a consequence reducing the noises in reception. Variable capacitors are exceptional to high-quality tune your stations. However the added circuitry will mean more vigor requirement which defies use of the term 'easy Radio'
The final inductance increases a little bit by overlap winding.
