...one of the First Wireless TV Remote was a Mechanical Hammer and Rod?
1956: The futuristically-named "Zenith Space Command" used mechanics to produce ultrasound generated by tiny hammers hitting aluminium bars inside the remote to produce a frequency.
Ramona / NTi Audio
...one of the First Wireless TV Remote was a Mechanical Hammer and Rod?
1956: The futuristically-named "Zenith Space Command" used mechanics to produce ultrasound generated by tiny hammers hitting aluminium bars inside the remote to produce a frequency.
Read more: https://www.zenith.com/remote-background/