On 20/12/2020 18:17, Chris Green wrote:

All semiconductor radios when RF transistors became available
economically.

Were they the Green Spot or the White Spot amongst those being sold
off to amateurs from otherwise manufacturer's rejects?

I remember in the late 1960s, I owned one, only, germanium transistor
which I did not dare solder for fear of causing further migration
of semiconductors into a resistor!