On Fri, 27 Mar 2015 10:27:25 -0700, richdugger wrote:

Why not just use the cigarette lighter adapter????
Rich

Some older devices aren't happy being connected to external power without
a set of good batteries in them. I don't know if that radio is one of
them.

I'm currently reviving my 1976-vintage HP-25 calculator by adapting its
battery holder to use AAA rechargeables mounted so they can be replaced:
it used to use AA size NiCds with the lid glued on its battery holder.
The originals were 550 mAh while the AAA cells I're replace them with are
800 mAh so thi sis a win-win replacement.

The HP-25 needs working rechargeable batteries installed to buffer it's
external PSU's output: run it up with either no batteries or dead ones
installed and the display flickers violently. If I temporarily fit a pair
of AA alkalines it works as expected with a nice, steady display.


--
martin@ | Martin Gregorie
gregorie. | Essex, UK
org |