Sunny Boy frequency-shift regulation of power output - which models work per spec?

[Hedges]

I find "Gallery" but not "Galaxy"

A clock with hands may be timed by line frequency, could also be crystal.
One with mechanical flip digits (old digital technology) would be line frequency.
Electronic digital display, which I see, would be crystal.

 

[daklein]

I find "Gallery" but not "Galaxy"

Ours is a Frigidaire Gallery. It's a pretty fun electrical toy. The induction cooktop can really crank, it looked like 7kw for two front burners with large pots of water on the initial fast heat-up mode. Putting a teapot with a thin bottom sounds like a little jet engine right away, boiling and bubbles collapsing on the bottom of it.

The clock accuracy I mentioned is a curiosity, I care more about the AC coupling trouble with the SunnyIslands, Enphase M series microinverters and some particular combinations of house loads with central A/C.