R Osram BBC pink top pip – Frelat R amber top pip – Marconi R fuchsia – Thorpe BBC KL pink

Description

This section shows four vintage radio valves used  on early sets from 1920s

Frelat type R Dutch made top pip – amber.

Marconi R type top pip- fuchsia

Thorpe BBC 5-pin top pip type KL – amber.

Marconi Osram R type BBC 1925 black base top pip – pink.