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I broke my Milling Machine - Fixing the Mill machine

Fixing the Mill machine Hello Guys, For metalworking and generally for a good Workshop for metalworking, you need a milling machine. As many of my followers have already seen, I damaged my milling ...
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5 octave linear(ish)-in-pitch power VCO

Using the TDA7052A audio amplifier to generate a five octave, linear in pitch voltage-controlled oscillator (VCO).