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variable HV unit to create bias of +10.000volts
variable HV unit to create bias of +10.000volts
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Old 13th January 2018, 03:04 PM   #1
Geoneer is offline Geoneer
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Default variable HV unit to create bias of +10.000volts

I'm thinking about to test a variable HV unit to load the diaphragm.

Did anyone try this:

220v High voltage electrostatic generator power supply air purifier 10000v outpu-in Headphone Amplifier from Consumer Electronics on Aliexpress.com | Alibaba Group

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Old 13th January 2018, 04:03 PM   #2
jan.didden is offline jan.didden  Europe
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I didn't try it but would be interested. How much current would it be able to source?

Jan
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Old 13th January 2018, 04:27 PM   #3
JonSnell Electronic is offline JonSnell Electronic  United Kingdom
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Amazing what one can do with an old line output transformer and an oscillator.
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Old 13th January 2018, 11:25 PM   #4
geraldfryjr is offline geraldfryjr  United States
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Hmmmmmm........ Intersting !!

This type of stuff simply wasn't available when i built my power supply either/or they were just too expensive.

Nice size core in that thing, I may just have to get a couple of those and try them out as well!!



jer
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Old 14th January 2018, 02:01 PM   #5
bentoronto is offline bentoronto  Canada
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variable HV unit to create bias of +10.000volts
My latest bias supply used a used EMCO unit, a $15 variable DC power supply with voltage readout (a little naked board), and a 20vac transformer.

You put 0-15vdc into the EMCO and you get out a nicely proportional high voltage. The EMCOs are trustworthy which is possibly more than can be said about the "ozone generator" supply OP posted. Likewise, really great to have the easy adjustment and voltage readout.

BTW, terrible mistake buying from that Chinese eBay: you will receive a million spam a day until you cancel your email address. Listed products may be good and a bargain, but see if you can use a temporary email address.

B.
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