• Country
• Germany

• Manufacturer / Brand
• Wisi (Wilh. Sihn); Niefern bei Pforzheim

• Year
• 1975 ??

• Category
• RF (Radio Frequency-) Amplifier

• Radiomuseum.org ID
• 133850

• • Brand: Sihn jr., Wilhelm; Niefern

• Number of Transistors
• 2

• Semiconductors

• Main principle
• Radio Frequency Amplification only

• Wave bands
• Wave Bands given in the notes.

• Power type and voltage
• Alternating Current supply (AC) / 220 Volt

• Loudspeaker
• - For headphones or amp.

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: TV-Radio-Antennenverstärker VS 56 - Wisi Wilh. Sihn; Niefern bei

• Shape
• Miscellaneous shapes - described under notes.

• Dimensions (WHD)
• 165 x 110 x 45 mm / 6.5 x 4.3 x 1.8 inch

• Notes
• Wisi VS 56 Antennenverstärker für UHF 470-790 MHz, VHF III 174-230 MHz, VHF I 47-68 MHz, UKW/FM 87-108 MHz, Fernspeisung 12 V für andere Zusatzgeräte über Antennenausgang möglich, Verstärkung VHF/UKW 18 dB und UHF 21 dB, Wandmontage.

• Net weight (2.2 lb = 1 kg)
• 0.9 kg / 1 lb 15.7 oz (1.982 lb)

• Source of data
• - - Data from my own collection

• Author
• Model page created by Karlheinz Fischer. See "Data change" for further contributors.

• Other Models

• Here you find 141 models, 105 with images and 8 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Wisi (Wilh. Sihn); Niefern bei Pforzheim