• Country
• Czechoslovakia

• Manufacturer / Brand
• Tesla; Praha, Bratislava etc.

• Year
• 1957/1958 ?

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 84050

• • Brand: Supraphon

Click on the schematic thumbnail to request the schematic as a free document.

• Number of Tubes
• 4

• Valves / Tubes
• 1H34 1F34 1AF34 1L34

• Main principle
• Superheterodyne (common); ZF/IF 468 kHz

• Tuned circuits
• 5 AM circuit(s)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Line / Batteries (any type) / (1.5; 67.5); AC 120/220 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 9.5 cm = 3.7 inch

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: Minor 3001B [late, post 432550] - Tesla; Praha, Bratislava etc.

• Shape
• Portable set > 8 inch (also usable without mains)

• Dimensions (WHD)
• 262 x 160 x 71 mm / 10.3 x 6.3 x 2.8 inch

• Notes
• 5 Kreise (siehe 1961 Schaltbild unten); Einige Geräte wurden mit 1,4 V Röhren (ohne weitere Änderungen) bestückt: 1H33 1F33 1AF33 1L33; 1,5V-Monozelle R20, Anodenbatt. 67,5V (95x70x35mm). Wahlweise Power supply number 2PN89002 statt Anodenbatterie einschiebbar. Nominell 67,5 V (Welligkeit max.1,2 V) und 1,4 V (Welligkeit max. 25 mV). Bei Netzbetrieb R20-Zelle gegen gleich großen Elko 1500uF austauschen.

• Net weight (2.2 lb = 1 kg)
• 1.4 kg / 3 lb 1.3 oz (3.084 lb)

• Source of data
• -- Collector info (Sammler)

• Mentioned in
• Ceskoslovenske Rozhlasove a Televizni Prijimace I a II (Ceskoslovenske prijimace Kottek 1961)

• Literature/Schematics (1)
• -- Original-techn. papers.

• Author
• Model page created by Konrad Birkner † 12.08.2014. See "Data change" for further contributors.

• Other Models

• Here you find 1855 models, 1177 with images and 669 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Tesla; Praha, Bratislava etc.