SHOWBOX 1

RSB-F - HF transmitter, 2.5…12.0 MHz in 4 sub-bands, A1 / A3, 50 W output. Manufactured from 1940. 

RSB-F was used as transportable radio along with  US or  KS-2 receivers or as an exciter for RAF-KW-3, a 1000 W transmitter.