Don’t put your hand in this one! This uses a disposable camera photoflash running off 3 V using a BD140 and heatsink substituted for the main HV transistor so it can now run at 1.5 A.
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Category Archives: High Voltage
Mobile x-ray unit 100 kV DC
I have acquired a mobile x-ray unit 100 kV DC base with its associated transformer, diodes and capacitor under oil.
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Variable frequency flyback supply 4 kV AC
This variable frequency flyback supply 4 kV AC was built after it was mentioned the Physics Dept needed a variable 50 -100 kHz sine wave supply between 1-2 kV.
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Spiral impulse generator
These are odd little high voltage generators which are in principle, part Blumlein generator (like the nitrogen laser uses) and part induction coil. They are compact and easy to make.
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X-ray transformer 60 kV DC
This 300 kg x-ray transformer 60 kV DC at 300 mA has 3 phase 240 V 45 A input. It is capable of making an arc drawn out to 2 feet just on 1 phase 240 V so it is a serious piece of HV gear.
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Can Crusher Display for Uni
This can crusher display crushes cans in milliseconds using a very high current pulse.
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Exploding Hot Dog
This is a hot dog/sausage/wiener about to be cooked from inside out. Apply 3 kJ from a pulse capacitor charged to 6 kV and the iron wire vaporises with many thousands of amps. The explosive energy is discharged in less than a millisecond.
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Capacitor Bank 10 kJ
Time to get serious! A capacitor bank like this stores electrical power which can be released very rapidly. For example the two grey capacitors previously provided power to pulse a laser in the “Star Wars” program. “Continue reading” for more details and photos. Continue reading
Lifters Construction
Lifters are devices that levitate using ion wind created from a DC high voltage external source. Here we examine lifters construction.
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Lifter – Museum Display
This high voltage lifter was developed for a public display. It has custom argon tubes for the upright high voltage wire supports. In addition it has small neon indicator globes at the corners of the lifter itself. Very impressive at night. Not really a high flier however due to the reduced voltage available after the argons plus the added weight of the small neon tubes which were later removed.
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