The 1936 CROSLEY "COLOSSUS" WLW Model Super Power Radio receiver. The most expensive and advanced vacuum tube shortwave radio ever made.
Features included.
Auto volume control
Auto gain control (AGC)
5 Preset graphic EQ settings
37 Vacuum tubes
4 Chassis stages
Had 6 speakers in total
x3 High range tweeters
x2 12" Med range drivers
One 18" Super Bass low end auditorium driver
Total output of 75 watts
Weighed 475 lbs
Cost $1500 in 1936 ( $88,000 2024)