Aparatul este defapt un receptor radio superhoterodina echipat eu tuburi sovietice — avind in circuitul catodei 6 A 10 — un transformator de frecventa intermediara, iar in circuitul anodic al pentodei 6 β 8 — numai primarul unui alt transformator F.I.
Tubul electronic 6 β 8 este o dubla dioda — pentoda, iar diodele sint folosite la detectie. Semnalul detectat este amplificat de tubul final 6 π 6.
Receptorul este pornit si oprit de un ceas desteptator al carui mecanism de sonerie sau chiar sistemul de afisare al orelor a fost modificat pentru a inchide si deschide un circuit la ore prestabilite.
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