One hell of a rack!

spangy · 12-28-2022, 09:55 PM

WW2 was an era of innovation and invention as well as a dark moment in history.

One of my all time favorite images is this one:
acoustic_locator_5.jpg acoustic_locator_6.jpg

Sound location equipment in Germany, 1939. It consists of four acoustic horns, a horizontal pair, and a vertical pair, connected by rubber tubes to stethoscope type earphones worn by the two technicians left and right. The stereo earphones enabled one technician to determine the direction and the other the elevation of the aircraft.

12-28-2022, 09:55 PM	#4
spangy Lifer Lifetime Forum Patron Join Date: Sep 2020 Location: Winnipeg, Canada Posts: 632 Thanks: 3,206 Thanked 1,068 Times in 437 Posts	WW2 was an era of innovation and invention as well as a dark moment in history. One of my all time favorite images is this one: acoustic_locator_5.jpg acoustic_locator_6.jpg Sound location equipment in Germany, 1939. It consists of four acoustic horns, a horizontal pair, and a vertical pair, connected by rubber tubes to stethoscope type earphones worn by the two technicians left and right. The stereo earphones enabled one technician to determine the direction and the other the elevation of the aircraft. __________________ Whoever said that "money can't buy you happiness" never bought a Luger. WTB - Take Down Lever & Trigger Plate (#90) for an Imperial Artillery.