The Silver Apples – 1960s electronica, way ahead if its time

When I think of electronic music, I think ’90s, or ’80s at the earliest. I definitely don’t think of the 1960s, yet there was a group back then that made shockingly futuristic music for its time – The Silver Apples. They were around from 1967 to 1969 (and again in the 1990s), performing a kind of psychedelia using an oscillator to produce pulsing electronic sounds. They also remind me a bit of Krautrock groups like Can.