Loewe multiple valve radio receiver, late 1920s.

Burndept 'Ethodyne' superheterodyne radio receiver, 1925.

Philips projection TV/radio receiver, model 799, c 1950.

Pam 710 portable radio receiver, 1956.

Pam 710 portable radio receiver, 1956.

Pye transistor radio, c 1960.

Western Electric 7-valve 'superhet' heterodyne radio receiver, 1924.

7-valve 'superhet' heterodyne radio receiver, 1924.

Pye 800-series television and radio receiver, 1938.

FADA Neutrodyne wireles receiver kit, 1925.

Brownie crystal radio receiver and pair of BTH headphones, mid 1920s.

Brownie crystal radio receiver and pair of BTH headphones, mid 1920s.