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For the term "homemade peltier element".

Homemade Selfmade DIY THERMOELECTRIC Peltier thermogenerator cell

Video how to produce some Copper-Sulfide inside a glas tube with 2 graphite pencil rods as the end conductors to get a thermoelectric effect. Unfortunately one can not see, what the exact voltage is, that this guy gets, when he heats one end with his s…

Magnetic Resonance Amplifier 3: Capacitor Instead Of Piezo Element

Please watch the first two videos first. Here I take the Piezo element out of the circuit and replace it with a capacitor of similar value. The circuit behaves nearly the same as before…

Magnetic Resonance Amplifier: Supplement: Piezo Element, LED Flashes

Here’s a neat thing I discovered about these little piezo buzzer elements. I knew they would flash the LED, but evidently they also somehow hold enough charge so that they are able to flash…