The unit is highly portable at 850g and can be powered by four A-343 battery elements or via an external 9V power supply. Circuitry & Schematic (Shema)
Detailed alignment frequencies for the heterodyne and antenna circuits include 1630 kHz (MW) and 145 kHz (LW), with IF (Intermediate Frequency) set to 165 kHz . alpinist 321 shema
The Alpinist 321 is a robust, lightweight vintage receiver. While its lack of FM (VHF) limits modern utility, it remains a favorite for collectors and hobbyists due to its straightforward schematic and repairable through-hole components. The unit is highly portable at 850g and
The (later renamed Alpinist RP-321 under new GOST standards in 1987) is a portable Soviet-era superheterodyne radio receiver produced by the Voronezh Polus enterprise starting in 1986. Technical Review & Performance While its lack of FM (VHF) limits modern
The Alpinist 321 schematic reveals a classic superheterodyne architecture typical of late-Soviet consumer electronics:
The design utilizes common Soviet transistors like the KT315 and KT361 for signal processing, and KT814/815/816/817 for the power amplification stages.