Originally posted by onbongos they've been out that long, i don't know if they were widely used.. most nationally touring acts probably had them
They also probably weren't that good and were very expensive; i would imagine that there would be quite a few signal drops, plus they probably didn't sound all that good.
In Spinal Tap, which I suppose is more 80's, you see an early wireless unit, i suspect they had stuff like that back in the day.