I've never been particularly enamoured of vintage radio. AR88 and CR100s have never appealed to me.
I was introduced to two-way radio communications during the first wave of CB in the UK. I have to add that I never actually broke the law by transmitting speech on 27Mhz, but I did often hear American CB'ers voices emanating from the various 27MHz radio control receivers I built. Particularly in the early 1960s. I did have a radio control license.
Later my friends bought and used 27MHz walks talkies. I lusted after one of these but could never afford one. Those pull-out telescopic antennas ( less than 5foot to qualify for FCC part 15 unlicensed equipment) and the snugly fitting leather cases just looked the part.
Recently my local antiques shop in Felixstowe included a pair of beautiful Radifon SRT-602 27MHz walk talkies, in their original leather cases no less, for £20/pair. The boiler plate on the rear says made in August 1965. The cases are metal ( no cheap plastic here). They take a 9v PP3 battery. There is no sign of battery corrosion in either unit.
After several weeks of passing by the shop on my way into town I decided I really ought to buy them before someone else with a similar fetish bought them!
I eventually agreed £18 for the pair and carried them home.
I have no intention of using them. That would be illegal. However, I will check them out on my spectrum analyser and signal generator.
It says 6 transistor, 11channel on them, but I believe that really means they are on the old FCC channel 11 as there is no provision for a channel switch or even space on the PCB for more than one or two crystals.
I will publish a bit more about them after a few measurements.