[Kenwood] 4 tube radios

[r miles]

Those were popular but I think you missed one. I think there were more Yaesu FT 101 series radios active than all the others combined. The Collins was just too pricey for most hams.There were a LOT of 520s & 101s on 11 meters too unfortunately.
I've been active since '59 and during the 60's & 70's the majority of transceivers in use were FT 101s or TS 520s. Drake was always 3rd. Collins was a distant 4th only because of cost. I used several 75 series during contests as a guest OP. They are still my 2nd favorite receiver.Drake was a bit better receiving than the Kenwoods & Yaesus. What I'm using now is the best receiver I've ever had. An Elecraft K3.
This is just MY opinion. Everyone  has theirs.
k9il