Murphy A316G record player

[Geordie McBoyne]

In the sixties Mullard were marketing Mazda and Brimar valves with the original codes, 30P19, 30PL13 etc, also with the Pro-Electron codes as well, an example 30F5 = PF818. There is a special symbol on the valves indicating from a third party source.

Geordie McBoyne.