The first Philps transistor portable
Department and University.
The invention of the transistor in 1947 changed the design of radios
quite radically, but not really overnight.
The importance of the invention was realized from the start, but it
would take seven years until the first fully transistorized radio was
marketed (the Regency TR1, 1954).
Philips had always been hesitant to adopt new technologies because
they had always been able to exploit the old ones so efficiently.
Transistorized hearing aids replaced their tubed predecessors in 1954,
and `hybrid' radios (containing some tubes and some transistors) were
produced in the fifties.
The production of fully transistorized portable radios was started in
1957 with this model.
See my other radios too!
(Here is the next one.)
Data for this radio
||Philips L3X71T transistorized portable
||LW (1150-2000m), MW (200-550m)
||Yellow plastic, brown leatherette
||None; this is Philips' first fully|
||Volume, tuning, pushbuttons Off, Tone, LW, MW
||The Netherlands, 1957