Musicmanager
Well-Known Member
Morning Guys
I've got a bit foxed !
I'm currently putting together a parts list for a future project which will end up with a Christmas present for the Grandkids. The scheme calls for a 12vdc 250mA wallwart but stresses that it must be a linear not switch mode power supply.
I've got a large box full of wallwarts, even some which are usable for correct voltage and either enough or more than enough power but how do I tell which are SM and which are linear. I understand that a couple of them actually say 'Switch Mode' on the label but most have little marking. I know that size of the unit is good clue .. but I'd hope for more than that. There is even one marked 'LPS' which might be an obvious clue, but with my luck it's more likely to stand for 'Like's Plenty of Salt' or something else even more obscure .. .. ..
Any guidance please ..
Thanks
S
I've got a bit foxed !
I'm currently putting together a parts list for a future project which will end up with a Christmas present for the Grandkids. The scheme calls for a 12vdc 250mA wallwart but stresses that it must be a linear not switch mode power supply.
I've got a large box full of wallwarts, even some which are usable for correct voltage and either enough or more than enough power but how do I tell which are SM and which are linear. I understand that a couple of them actually say 'Switch Mode' on the label but most have little marking. I know that size of the unit is good clue .. but I'd hope for more than that. There is even one marked 'LPS' which might be an obvious clue, but with my luck it's more likely to stand for 'Like's Plenty of Salt' or something else even more obscure .. .. ..
Any guidance please ..
Thanks
S