yes, the early years brown pads would be appropriate for the early R-14 distribution. (HS-23) not sure why they switched to the small black rubber pads. then due to ohm changes they switched to the AN b h1 (HS-33) as I am sure you know of course. so unless you had the ohm adaptor you needed to junk your R14 if you flew. Not sure if R 14 stayed in use for long in the control towers.Were they not supposed to be supplied with R14's ??
Mmm adaptor ??yes, the early years brown pads would be appropriate for the early R-14 distribution. (HS-23) not sure why they switched to the small black rubber pads. then due to ohm changes they switched to the AN b h1 (HS-33) as I am sure you know of course. so unless you had the ohm adaptor you needed to junk your R14 if you flew. Not sure if R 14 stayed in use for long in the control towers.
adapter? Why sir I hardly know her!Mmm adaptor ??
How would you say they compared to sun glasses made today with the modern technology they use?