In this article I will share with you how you can make your own resistance welding transformer of a microwave oven. For those, who do not know what the resistance welding and how it works, I tell… Resistance welding - the process of forming an integral weld by heating… Continue Reading
This is a simple thermostat using a thermistor as a temperature sensor and a chip NE555. The diagram shows how the heater resistor 100 ohm. practice shows, that for the heater at 20 ° C thermistor must be set 10 k. When the heater is turned on… Continue Reading
Evaluation of the quality playback sound tube ULF, as any reproducing apparatus, performed each student individually, Based on the subjective perception of the amplified signal. In this case, each user is in the process of listening to a sound track not only evaluates the quality, but also wants to have… Continue Reading
Here you have good control of high and low frequencies. I use this device with the audio amplifier. Driving is very easy.