On Sun, 12 Jul 2015 08:17:38 -0700, John-Del wrote:

Yeah, but you're missing the point. An unregulated wall wart is rated
for the max current that the supply will output no less than 12V.

If your radio has regulators inside that can handle an input of 19.33
volts, then there's no problem. If the radio was designed to run on
batteries and/or a regulated supply, then you should definitely go to a
regulated supply, or add a post regulator to the wall wart.

The radio at the power connection states it accepts 12VDC and has a
little diagram of the three hole pin-out for polarity/orientation. I find
it absurd that one should expect such a device to be able to cope with
19V in. Call me old fashioned if you like, but that's my mindset. If it
says it requires 12V I'm not going to stick 19V unreg into it. Just
doesn't sit right with me.
I've checked the current this radio draws when supplied with 12V
regulated on full volume with the display on max. etc., etc., and it's
275mA, so a little higher than I expected but not enough to make any
material difference.
*If* that PSU is working as it should then my opinion of Jap design has
just taken a big hit.