The Thermiodyne is generally
recognized as the first "single dial" tuned radio. Unfortunately,
in order to operate properly four "trimmers" were needed, effectively
making it a five dial set!
Grebe Synchrophase
Model MU1
1924
Freshman Masterpiece (SOLD)
1926
Crosley Pup
1923
Stewart Warner 300 (SOLD)
1925
RCA Radiola 25
1925
Kennedy V (SOLD)
1923
Gilfillan GN4 (SOLD)
1925
Atwater Kent 35 (SOLD)
1926
AtwaterKent 33 (SOLD)
1927
Tyrman 50
1929
RCA Radiola 20
1925
Radiola 26 with
Home Battery Box and Antenna Tuner
1925