SolarFlare wrote:
get a small flexible PV panel

glue it to the face of the clock
add a series resistor and schottky diode to charge the
battery.

the frugal will steal the parts from a defunct solar
calculator ;-)

Nick, put equal value cap and resistor in series with each
line and your diodes in a small box with ac plug (gutted
wall wart- there's justice?) then run small cable (like the
old earphone cable) up to clock. Paint red insulator over
any "hot" parts in clock. The "power" cable will be about
as dangerous as any current small appliance "leakage" since
most have .045 mF caps from EACH power lead to chassis. UL
specifies an allowable leakage level. 5 ma sounds familiar
since that's the level that GFI's are supposed to trip at.

There's a thought, wire it any way you want to, then plug it
into a gfi ;-) hook all your clocks, smoke detectors, etc
together and use just one gfi. the gfi will use more power
than you're saving.

have a good new year -larry / dallas