What kind of power supply is suitable for the E10 TINI Socket Board?
If you choose the socket board without the regulator (the TINI Sockets E10), you will need to feed your TINI at least 250mA @ 5.00 V +/- 5% In other words, you need a regulated power supply (an unregulated transformer will definitely not do.)
The power supply plug is 5.5mm OD, 2.1mm ID. The center pin must be positive polarity. A compatible plug is Switchcraft S760K or equivalent.