We all have some sort of testers, super testers, PIC RLC-meters, or MCU frequency counters, that are small but still need power supply to work
Easily I do have about 4 of these little critters on my bench, and need to get them into enclosures, and give them power. I am not a big fan of 9V batteries, so I could power each of them via a transformer or a sort of AC adapter but this means another 4 power sockets, or have a unique power supply for all of them and a DC rail to power them from it.
How did you solve this in your home lab?

 

9V battery - they even have a convenient plug/socket arrangement so no on/off switch is needed.

 

Most of the stuff I've designed for my workbench runs off 12 VAC, using 5.5/2.0 mm barrel jacks for power input. I seldom run more than one of my gadgets at a time, so a single 12 VAC wall-wart with a barrel plug suffices; I just plug it into whatever I'm using at the moment. For those rare occasions when I'm operating two devices at once, I have a second wall-wart.

Some of my devices operate from 5 VDC power and for those I use either a 5V USB phone charger (I've found the Apple iPhone "white cube" chargers give the cleanest, least noisy output) or a 5V 2000 mAh USB "booster battery." For my 5V devices, I bring power in through a USB Mini-B breakout board from Adafruit.

 

I have a second wall-wart.

I have a whole box-load of them - assorted voltages/currents/connectors. There's usually one that will do the job.

 

Please describe more clearly about your devices as their V/I and it will be useful to help you.

 

Thank you for opinions gentlemen.
ScottWang, it is not about V/I but about principle; how do you cope with more low power, MCU driven instruments on your bench. How this changed your power supply habits and what way did you go with it. Earlier I added more mains sockets,as every instrument needed 230V, but now it seems I could use some other power distribution system, based on low voltage ( 5,9,12V ) to power up the RLC meter, Frequency counter, signal generator or multitester, ESR meter, and things continue comming