I would be very interested in some sort of solution for the power supply.Using the PO in a studio environment, with constant flow of batteries is making me super wasteful.
It is actually easy to do so:https://www.youtube.com/watch?v=inmAEY02hsg
great! what is the guitar pedal adapter he is talking about? i could not quite understand…
You can get multi-voltage power adaptors from electronics stores; they have a switch on them which allows for a range of voltage output, usually between 3 and 12 volts. Usually they’ll also come with a bunch of various sized tips so they can fit into most of the sockets you’ll encounter. I’m not sure what he’s suggesting in that video, but you should also be able to find sockets at electronic component stores, just ask for one that is compatible with one of the plug tips on the adaptor.
Once you’ve got these parts, solder the socket to the +/- terminals, paying attention to the polarity (I usually connect sleeve/ring to positive and tip/centre to negative), so you can match it when connecting the plug tip on your adaptor.
Hope this is clear, I just woke up 
You can get multi-voltage power adaptors from electronics stores; they have a switch on them which allows for a range of voltage output, usually between 3 and 12 volts.
A word of warning about this: There are different kind of these switchable power supplies, mainly “regulated” and “unregulated” ones. The unregulated kind is usually cheaper, larger and heavier because it contains a transformer. Those can output voltages way above what you set them to when connected to a low-power load like the PO. The regulated ones are usually switch-mode power supplies and smaller/lighter. As the name suggest they have regulated outputs which should be close to what you set them to, but you could measure the output to be sure.
@crashdebug There is only a 2.5V low dropout (LDO) regulator for the Cirrus codec. The MCU is powered at 3V directly from the batteries through a reverse polarity protection. Applying external powering to the pads at the back bypasses that protection, so be careful. Also, the maximum voltage for the MCU should not exceed 3.8V, otherwise it may be damaged!
@crashdebug good point, I think I lucked out and managed to find good switch mode power supplies each time. I have one for my monotron (which also operates on AAA batteries) and it works perfectly. I also literally just soldered the socket to the battery terminals, so it may also be an option here (to maybe allow for the protection @punji described)?
I guess I want something like this, that I can just plug into the battery space when using po in the studio.
oh wow, I didn’t even know that was a thing!
I see one here: http://www.ebay.com/itm/like/201445419629?ul_noapp=true&chn=ps&lpid=82
AAA seems way harder to find stuff for.
Just wanted to point out before too many people buy them, but make sure you find one with both positive ends facing the same direction like on the PO. Otherwise you will have to make some modifications.
Well, we all know what size AAA’s are so I could make a quick 3D model to print. Shouldn’t be too difficult…
It’d only require a bit of soldering afterwards…
Or using two of those as inserts?
This looks like the $50 solution… close, but too expensive!
@piotr, its not only $50, you’d also have to mod it so to link the top left positive contact with the bottom right negative contact on the PO… (which is easy)
@piotr, its not only $50, you'd also have to mod it so to link the top left positive contact with the bottom right negative contact on the PO.. (which is easy)Anyway, maybe its a good solution for american users, but i'm not sure it's handy for European use. Also it'll be irritating to have the charger attached to your PO all the time...
Right.
Maybe one of these crimp terminals would fit the battery connectors:
These are for high power automotive use. The PO battery contact thickness is too small for these, so it may be necessary to thight the terminals a bit with a plier.
I’m just using Eneloop AAAs in mine. They don’t take very long to recharge and are cheap enough to double up so you can swap them out for spares while the empty ones recharge.
