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Registered Member #54278
Joined: Sat Jan 17 2015, 04:42AM
Location: Amite, La.
Posts: 367
My first time shrinking quarters was with a few paralleled 4500v @ 32uF...not much luck, you had to put the 'shrunken' quarter against a regular one to know it was even slightly smaller. Then I got a pair of those orange Maxwell pulse caps rated at 12kV @ 70uF each wired in parallel (140uF at 12kV--only charged to <10kV). I have a huge hologram table 4' x 8' filled halfway with sand in which I buried the work-coil containing the quarter. I fired the cap bank, making a mess of shrapnel and razer sharp pieces of 10AWG magnet wire stuck in everything--looked like a grenade exploded, I was wearing VERY good eye and ear protection, so the noise wasn't painful and the thing was buried in sand--completely disintegrated! I dug around, and when I finally saw the coin, I couldn't believe my eyes! Yes, it was a quarter, but so tiny,I couldn't adapt my mind to the familiar quarter + the so unfamiliar size...very weird sensation! It was so hot I couldn't touch it for a short while. After having it for a couple of days, other coins: nickles and penny's appeared to be HUGE--I couldn't get over it? Also, from then on, I wondered why anyone would be interested in squeezing soda cans after this! The size of the shrunken quarter could be controlled by the small variac that simply controlled the final voltage of the cap pair. A large microwave oven diode following the variac output rectified the voltage at the output of a small 7500v NST. YOU MUST BE SURE TO DISCHARGE THE CAPS BEFORE DIGGING AROUND FOR THE LOST QUARTER!
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Pulse discharge capacitor information sought
