Madlab Electronic Kit - Wonky Wire Soldering Kit

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Madlab Electronic Kit - Wonky Wire Soldering Kit Used to test the steadiness of your hand Utilizes a circuit with an oscillator Power Supply: 9 V Oscillation frequency: 3 kHz The M adlab Electronic Kit - Wonky Wire Soldering Kit is used to test the steadiness of your hand. It utilizes a circuit with an oscillator that has a very high oscillation frequency of about 3kHz (3000 cycles per second). As you try to trace the outline of the convoluted wire with the loop, the slightest touch will cause a tone to sound. The variable resistor can be used to change the pitch of the tone. Show more