The merits of this kind of trip-toy aside, I do enjoy the "CAUTION: WILL CAUSE SEIZURES" disclaimer.
Previously, previously, previously, previously, previously.
I love that it's not “CAN cause seizures”, no, it's “WILL cause seizures.”
...I must have one.
The closely-spaced Bakelite knobs look like they'd be particularly pleasurable to fondle; the metal toggle switch, as well.
If only it also had dial indicators that go up to "11," or "stroke," or something -- then it would be perfect.
Well now, that is high weirdness of a fine vintage...
Marvellous stuff. I need to build an FL.