Common pulse induction search coils with their physical properties
Size	Shape	Turns	Wire size	Inductance	Resistance
O 120 mm	Round	36	O 0.40 mm / 0.14 mm2	405 µH	1.9 Ohm
O 150 mm	Round	31	O 0.40 mm / 0.14 mm2	394 µH	2.0 Ohm
O 175 mm	Round	28	O 0.40 mm / 0.14 mm2	387 µH	2.1 Ohm
O 200 mm	Round	26	O 0.40 mm / 0.14 mm2	406 µH	2.2 Ohm
O 250 mm	Round	22	O 0.40 mm / 0.14 mm2	380 µH	2.3 Ohm
O 300 mm	Round	20	O 0.50 mm / 0.20 mm2	390 µH	1.6 Ohm
O 400 mm	Round	17	O 0.50 mm / 0.20 mm2	396 µH	1.8 Ohm
O 500 mm	Round	15	O 0.50 mm / 0.20 mm2	400 µH	2.0 Ohm
1.0 x 1.0 m	Square	10	O 0.66 mm / 0.34 mm2	406 µH	2.0 Ohm
1.4 x 1.4 m	Square	8	O 0.66 mm / 0.34 mm2	387 µH	2.2 Ohm
1.8 x 1.8 m	Square	7	O 0.80 mm / 0.50 mm2	398 µH	1.7 Ohm