Po210 + Be Neutron source
l.i.papadopol
Neutrons are cool. Them are the key ingredient of any nuclear chain reaction, the trigger wich split the atom, the “biliard ball” that striking other atoms turns them in radioactive…
ZX81 repair & mods
Hallo, Fangemeinde alter 8-Bit Rechner! Ich bin Rico, DL1RIC, und seit kurzem in Besitz eines ZX81 – vertrauensvoll überlassen von Lucian, IZ6NNH. Danke nochmals. Der Rechner funktionierte bis auf die…
EL84 Guitar Amplifier
Recently I’ve designed and built a simple yet very nice playing guitar amplifier. I’ve designed it keeping in mind that I don’t wanna distortion: it’s a specialized amplifier for playing…