# Power Supply board to Pi 3 (or Zero W)

**URL:** <https://forum.core-electronics.com.au/t/power-supply-board-to-pi-3-or-zero-w/2363>\
**Category:** Raspberry Pi\
**Created:** [22 March 2018 23:50 UTC](https://forum.core-electronics.com.au/t/power-supply-board-to-pi-3-or-zero-w/2363 "2018-03-22T23:50:46Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Alex59803](https://avatars.discourse-cdn.com/v4/letter/a/9d8465/32.png) [@Alex59803](https://forum.core-electronics.com.au/u/Alex59803)\
**Post date:** [22 March 2018 23:50 UTC](https://forum.core-electronics.com.au/t/power-supply-board-to-pi-3-or-zero-w/2363/1 "2018-03-22T23:50:46Z")

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I’ve got a project where I want to stash a Pi inside the chassis of a record player. So I’m looking for a small power supply board that’s expecting bare mains power wires as and input, rather than a full australian mains plug, ideally without a big plastic case around it.

Basically I just want the guts of a normal Raspberry Pi wall brick, but without the case or the physical plug.

Does such a thing exist?

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**Author:** ![Graham](https://yyz2.discourse-cdn.com/flex028/user_avatar/forum.core-electronics.com.au/graham/32/54_2.png) [@Graham](https://forum.core-electronics.com.au/u/Graham)\
**Post date:** [23 March 2018 00:47 UTC](https://forum.core-electronics.com.au/t/power-supply-board-to-pi-3-or-zero-w/2363/2 "2018-03-23T00:47:24Z")

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Hi Alex,

A small form factor power supply with bare mains power wires as input would be very hard to find in AU as a consumer product. I would assume that the Record Player has DC voltages somewhere inside. If so, then you could perhaps use something like this:

> **[Pololu 5V Step-Up/Step-Down Voltage Regulator S7V7F5](https://core-electronics.com.au/pololu-5v-step-up-step-down-voltage-regulator-s7v7f5.html)**
>
> The S7V7F5 switching step-up/step-down regulator efficiently produces 5 V from input voltages between 2.7 V and 11.8 V. Its ability to convert both higher and lower input voltages makes it useful for applications where the power supply voltage can...

It goes without saying though; be safe with 240VAC equipment. You are well outside the typical DIY zone.