Description
This section covers early 1920s triodes for receivers and amplifiers.
Most valves are European unless stated otherwise.
Junot Top Pip amplifying valve French made.
A British Fellows type R first triode audio valves receivers.
Two Frelat Holland type R top pip audio radio sets.
A British Ediswan Top Pip BBC label type R audio amplifying valve.
R European French design amplifying valve.
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