TR3

• Country
• Germany

• Manufacturer / Brand
• Fern, Radio-, GmbH, Essen

• Year
• 1961 ??

• Category
• Kit (Parts plus instruction) or building instructions only

• Radiomuseum.org ID
• 96396

• • Brand: Radio FERN El

• Picture
• Schematics

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

• Number of Transistors
• 3

• Semiconductors
• OC169 OC169 OC72 OA90

• Main principle
• Superheterodyne (common); 2 AF stage(s); Reflex

• Tuned circuits
• 4 AM circuit(s)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Dry Batteries / 9 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 5 cm = 2 inch

• Power out
• 0.1 W (unknown quality)

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: TR3 - Fern, Radio-, GmbH, Essen

• Shape
• Very small Portable or Pocket-Set (Handheld) < 8 inch.

• Dimensions (WHD)
• 94 x 68 x 30 mm / 3.7 x 2.7 x 1.2 inch

• Notes

• Die ZF-Stufe ist gleichzeitig die 1. NF-Stufe.
  Gerät ist baugleich mit TR3 von Radio-Vogel, Junior von Radio-Holzinger (Bausatz), Radio-RIM (Bausatz) und Eva von H+S Häußler & Steinhilber (Fertiggerät)

• Net weight (2.2 lb = 1 kg)
• 0.2 kg / 0 lb 7 oz (0.441 lb)

• Mentioned in
• Heinz Richter "Das grosse Transistor-Bastelbuch"

• Literature/Schematics (1)
• Funkschau (11/1962)

• Author
• Model page created by Günther Stabe † 19.8.20. See "Data change" for further contributors.

• Other Models

• Here you find 13 models, 6 with images and 12 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Fern, Radio-, GmbH, Essen