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Diagram of the device from mosquitoes and midges



Adjustment is reduced to the choice of the generation frequency range, which is set by changing the capacitance C1 and the resistance R 3. The range of 1-1.5 meters.

VT1 - MP36 - MP38.
VT2-MP40-MP42.
R1-SPZ-b, SPO 100kOm
R2. -100KOhm
R 3. -10 kOhm C1. - 3300 uF
IN 1. - tel capsule:
TD-6, DEM-4m;
Dynamic head
0.1 GD-6: 0.025GD-