# dpdt switch to spst switch

I am trying to build a raspberry pi gameboy emulator with a custom board inside of a gameboy adv sp shell. I decided to use an open-source board made by some guy on the internet and I will be modifying a few things on the board such as the power switch to an OEM power switch for authenticity.

My question is as follows: how could I change the schematic from a DPDT switch to a SPST? Images here:

Apparently the DPDT switch is connected to things like keepalive, +3v, enable, shutdown, and the rest of the connections go to other parts of the board.

• The transistor appears to be upside down or else it should be an NPN. – Transistor Mar 23 at 17:56
• the big question is .... why? ........ also, what is open-source board made by some guy? – jsotola Mar 23 at 19:10
• MMBF5460 is a P-channel JFET – Spehro Pefhany Mar 23 at 19:53
• The two switches have separate purposes, as senor Karas indicates, and the original switch could control a relay as senor Howie indicates, but if what you want is an authentic look(The device being an emulator makes inner authenticity irrelevant), as a second option other than using a DPDT relay controlled by an original switch, you could simply find a DPDT switch that performs like the original(similar dimensions and travel) so that the part exposed to the user can be more authentic. – K H Mar 23 at 20:54
• Thanks for the comments, I learned a lot and decided it would be best to keep the original power switch. – Vincent Pipitone Mar 24 at 1:50