May 4, 2009
about 5 months ago
these are even used in medical devices and because they can be daisy chained quite easy with no code, just some “for me” mid level math and your good to go, i have built a few of the 3914 to see the voltage drop in cars i have had, it can be set for 13.8 and have a variance of only a few volts so i could see the failing voltage regulator and replace that before getting a tow truck, even though it’s 80’s tech they are still awesome devices to play with and have them in smd packages so they still stay relevant in today’s toys
about 10 months ago
I have seen a few comments on these losing power as they heat up, this is normal for a laser with no cooling, the crystal assembly is temp sensitive and is the diobe, all i did was add a heat sink to the brass part of the head and it restored most of the stability
about 2 years ago
my original one is indeed defective, i think it was an instability in my power supply and spiked outside it;s rage. i will try to rip it apart with epoxy remover to atlest see the output transformer, the others i have work great and from my experience in hv i would say an output of over 10kv is easy, i want to see if the can be put in parell but would need to be dc first and phasing is unknown. anyway very impressing for the size. I have a 5ma 30kv supply and it’s arc is not as impressive. anyway time to order more for fun! if i find anything interesting on dismantling the bad one i will let you know
OK simple and maby i got a defective one, but correct me if i am wrong but positive is red and negative is white, some how mine failed, draws 6 amps and no output and it’s only a few weeks old. maby some one messed with my lab supply or not but i ordered 2 more for kicks and giggles but this time i will have a diode reversed biased on the input to protect the device. also the output seems to be ac, i have a high voltage probe and will try to calculate the voltage later is another does not beat me to it
about 2 years ago
i would not recommend charging these in parallel or in series unless you have the correct balancing charger for them, they do have them listed here
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