WG RADIO MUSEUM SAMPLES NOT IN THE SHOWCASES

ВС-221-AH - Precision heterodyne frequency meter designed to measure or radiate radio-frequency impulses between 125 kHz and 20 MHz. Made by Zenith Radio Corporation, USA, from 1943. Supplied to the USSR by The Lend-Lease Act in 1942-1944.

More details on BC-221-AH may be found at radiomuseum.org site.