Can this be powered with plug in power supply and will it stay on until turned off?
393629
It can not be powered with a power supply and it will stay on until turned off or battery dies. Great tuner.
393630
No to plug in power supply. Yes, it will stay "on" until you turn it off. Finally an excellent tuner you can actually see.
670030
No. No on/off switch. Plug the wall wart (power supply) into a switched power supply such as a power strip, power conditioner, etc. Wouldn't recommend just leaving it on all of the time when not in use. Product works very well for what it is intended for.
903460
This item does not have an on/off switch. Plugging it in powers it up, and unplugging it powers it down.
1270271
I'd not assume it's safe to leave it plugged in unless you see a statement saying that it is. In fact many manuals will say "Don't charge for more than 24 hours" or "Don't overcharge" showing that you shouldn't leave it on. If your thinking of that so it has a routine "fresh charge" that you don't need to think about doing regularly I'd get a timer that turns it on for just 15 minutes a day and/or a regulated power supply (like the Schumacher PC-6 or Coleman powerchill cooler AC supply) that won't "overcharge" it.
1157327
That all depends on where you hook up your power supply. the unit will stay on as long as you have the switch turned on.
1318713
It will stay on warm until unplugged. It is powered on with the switch when plugged in before use.
622811
Yes, but it doesn't have a easy off switch, so use the power supply jack as a switch to limit it to of two hours of use.
187352
No, it stays on until you turn it off. This is electric, not battery operated.
44713
yes it can.....its only supplys 6amps per battery......i keep mine plugged in while cleaning and radio use....
271901
Yes, this lamp does have it's own power supply that comes with the lamp. I leave mine plugged in all the time, unless I need to pick it up and move it to another room. Then the lamp will run on batteries until I return it to my study and plug it back in.
633523
Mine is always powered-up as it keep plugged in ac/dc transformer.....I have NO complaints
210153
Yes as long as you do not turn off then back on quickly it will stay. Mine stays just fine.
955240
My guess would be yes because it has needs a power supply which it gets from it's own plug in. Also, it remains lit up when the computer is off. That being said, I have not tried what you ask.
1811177
It is plug and play. You don't need a power supply. Plug it in. And it should set up.
2270232
No, this item is not able to be used without the power plug for now. But we will release one with a battery power supply in the near future. Thank you for your kind attention.
1489820
No, it' shuts on or off, no power control. I let it run for 15-20 min then unplug it. There's no on/off switch, just a plug. I really like it though.
503189
It does not retain power so yes u have to keep it plugged to a power supply in order to power anything