Just received four earlier transistor radios

[radiotvnut]

Got these four off ebay.

The first one is a GE model P808G from around '62. This one uses a magnetic speaker and a "modular" chassis. As in, there are individual circuit modules that solder on to one large PC board. Years ago, I had a look alike GE that used a standard speaker and a regular chassis. It was a decent performer; but, I've heard that these magnetic speaker models are not near as good. When tested, it's totally dead.

The second one is a Philco model T67GP from around '63. This one was made in Japan by what looks like Toshiba. This radio runs on a regular 9 volt battery and has earphone and external power jacks. This one actually works.

The third one is an RCA 8-BT-7J from '56. This one takes a large, round 9 volt battery. When tested, it receives some stations at the high end of the dial; but, nothing else. Am I correct in that this was RCA's first transistor radio?

The fourth one is an Olympic model 666 from 1959. This one is made in Japan and also uses a large round 9V battery. This one only produces static. Also, the back cover does not stay on well.