The first radio receivers marketed with the RCA brand name were the Radiola
models.
The first of these models was the Radiola I, a crystal set, was manufactured in
1923. The wooden case opened on two sides. The front lid exposed the tuning
control and connections for the antenna and headphones. The rear compartment
provided a space to store the owner's headphones. Initially these were battery
operated crystal sets but evolved into
AC powered superheterodyne models.The last Radiola model that was battery
powered
was the Radiola 21 introduced in 1929. The first AC powered Radiola model what
the
Radiola 17 introduced in 1927. Radiola continued to be the marketing brand up
and until the merger between RCA and the Victor Company in the late 1920’s.
Radiola
