> Seems like the sound tubes ended in the 70 I'm 40-ish, and I remember them as a child, so they were definitely still kicking around in the mid to late 80s, m

> Seems like the sound tubes ended in the 70 I'm 40-ish, and I remember them as a child, so they were definitely still kicking around in the mid to late 80s, most likely on KLM and Pan Am, that were the airlines of my childhood.