USSR HF transceiver type Sever

The Sever ('North') was developed in 1941 and primarily used for resistance forces communications and other clandestine operations. The set was packed in two canvas carriers comprising the basic radio in wooden cover along with accessories and the battery bag containing LT and HT dry batteries. Recorded is the production of a mains powered version of the set where the battery valves were replaced by steel types involving only minor circuit diagram modifications.

• Frequency range 3.4-6.8MHz
• CW only.
• Powered by 3V LT and 180V HT dry batteries.
• Battery valves with 2.4V filament are employed.
• Transmitter has a two valve circuit with crystal or MO control.
• Receiver is two valve straight circuit with regeneration control. One valve is common.