Radioamator 1957/12

Radioamator, grudzień 1957r., rok VII, Nr 12
On the cover: US battery receivers at XXV MTP

  • From home and abroad (1)
  • Amateur Kristal Reflex B1 and B2 battery receiver (4)
  • 10W Hi-Fi amplifier (7)
  • Universal power supply (9)
  • Errata to the number 11/57 (11)
  • Workshop and laboratory measuring instruments on transistors (12)
  • Construction modernization of radio receivers (16)
  • Outputpower of acoustic amplifiers (18)
  • Overview of schematic diagrams:
    • Suitcase receiver "Dorette" (21)
  • From radioamateur practice (22)
  • Vibrator from electric bell (24)
  • Practical fit of the fader to the VHF antenna (part I) (26)
  • SP9KBH/P in 'PD-57" (29)
  • On the bands (30)
  • Our Readers write... (31)
  • List of articles published in the monthly magazine Radioamator in 1957 (cover page III)