KW.E.A.
The so-called "Kurzwellenempfänger Anton" was designed fro mobile use by Telefunken and it became operational in 1938.



T
he receiver is a fiveband, high grade, super-heterodyne receiver, with single 250,9 KHz IF, cover from 980 kHz up to 10.200 kHz in five ranges as follows: 980-1610 kHz; 1560-2550 kHz; 2470-4060 kHz; 3940-6395 kHz and 6205-10000 kHz. Equipped with eleven RV 2 P 800 valves. the receiver uses the same filament type tube in all 11 stages. It is the type RV 2 P 800 pentode we also encountered in the Torn E b. The radio consumes 1.6 A at 2 VDC for the filaments and 15-20 mA at 90 VDC anode current.



Before the signal can reach the mixer stage it has passed five tuned filter sections (four are inductively coupled). There are three IF amplifier tubes. They are preceded by double tuned IF transformers on 250.9 kHz.
The dimensions of the radio are 69.2 cm wide, 27.4 cm high and 34.6 cm deep. It weighs 38 kg.
The meter is at the top left of the front panel and to the left of it you will notice a switch with 13 positions. In the first the filament voltage is read and in the second the anode voltage. The voltages should be within a red or blue sector on the meter face for the two voltages. The remaining 11 switch positions are for metering the anode currents of the 11 tubes in the receiver. A black mark on the meter dial indicates the minimum reading for a serviceable tube.
The frequency dial also carries red markers for frequency checking. The calibration signal for this comes from the 250 kHz crystal in the B.F.O. Harmonics of the B.F.O signal can be fed to the input of the receiver. For this a pushbutton must be operated that can only be reached when the set is out of its cabinet. In case the dial reading is not ok this can be corrected by rotating green encircled adjustment screws on the coil turret.

My KW.E.A.




Bibliography

  • Umberto Bianchi : “RadioSurplus Ieri e Oggi” Edizioni CD Bologna 1982
  • various Authors “Radiofronte 1935-1945. Le radiotrasmissioni militari sui fronti dell'Italia in guerra” Rovereto War Museum