Deutscher Klein Empfangėr - DKE 38 B - RFW (Radiofunk-Werke) - Germany 1938

Another model of the Deutscher Klein Empfangėr (DKE - "Small German Receiver") was projected to be powered by batteries, this was useful for zones not supplyed with AC net. Also in this model the circuit was a reaction type, and employed  three valves: two triodes KC1 and one pentode KL1. Battery employed was 2: a 2 V accumulator for tubes heater, and a 90 V dry battery for anode with an output at -6 V for the pentode KL1 control grid polarization. Dimensions: 24x24x13,5 cm.

Un'altro modello del Deutscher Klein Empfangėr (DKE - "Piccolo Ricevitore Tedesco") fu progettato con alimentazione a batterie per le zone sprovviste di energia elettrica. Anche in questo modello il circuito era del tipo a reazione, ma impiegava  tre valvole: due triodi KC1 ed un pentodo KL1. Le batterie impiegate erano 2: un accumulatore da 2 V per i filamenti, e una batteria a secco da 90 V per l'anodica, questa aveva anche un'uscita a -6 V per la polarizzazione di griglia del pentodo KL1. Dimensioni: 24x24x13,5 cm.

DKE 38 - battery supplyed - click to enlarge DKE 38 - battery supplyed - click to enlarge DKE 38 - battery supplyed - click to enlarge
DKE 38 - battery supplyed - click to enlarge DKE 38 - battery supplyed - click to enlarge DKE 38 - AC supplyied - click to enlarge
DKE 38 - battery supplyed - click to enlarge DKE 38 - battery supplyed - click to enlarge DKE 38 - battery supplyed - click to enlarge
DKE 38 - battery supplyed - click to enlarge DKE 38 - battery supplyed - click to enlarge DKE 38 - battery supplyed - click to enlarge
RFW logo DKE 38 - battery supplyed diagram - click to enlarge

DKE battery supply diagram

RFW logo
♣ Articolo di IK3HIA su Antique Radio Magazine N° 21 - 11/1997.