"VEFSUPER M-557"

Set of tubes:
6A8, 6K7, 6G7, 6F6S, 6E5C, 5Z4S.
Schematic diagram here.

BASIC TECHNICAL DATA.

Tunung Range..................................................................LW 150-410 KHz (2000-732 m)
MW 518-1525 KHz (579-197 m)
SWI 4,28-12,1 MHz (70-24,8 m)
SWII 14,87-15,44 MHz (20,17-19,43 m)

Intermediate Frequency........................................................................................ 469 KHz

Sensitivity, less than...............................................................................................150 mkV

Reception Selectivity (frequency deviation +/-10 KHz), not less than...........................20 dB

Second Channel Suppression, not less than ............................................................... 50 dB

Power Output...............................................................................................................3 W

Power Consumption........... ........................................................................................65 W