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A comment on Pump up the charge: Getting -5V from a 5V power supply. Parent comment

Re:Pump up the charge: Getting -5V from a 5V power supply by Kubuxu on Monday October 11, 2021 @08:52AM (#28827763)
Another option would be using an isolated DC-DC converter, like [this] one for $1.22.

[this]: https://www.digikey.com/en/products/detail/mornsun-america-l...

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