• Country
• Germany

• Manufacturer / Brand
• Sennheiser Electronic (Labor W); Wennebostel

• Year
• 1979/1980

• Category
• Commercial Transmitter (TX not Transceiver)

• Radiomuseum.org ID
• 127467

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

• Number of Transistors
• Semiconductors present.

• Semiconductors

• Main principle
• Radio Frequency Amplification only; none

• Wave bands
• Wave Bands given in the notes.

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

• Loudspeaker
• - - No sound reproduction output.

• Material
• Metal case

• from Radiomuseum.org
• Model: Infrarot-Mono-Sender SI1010 - Sennheiser Electronic Labor W;

• Shape
• Tablemodel, low profile (big size).

• Dimensions (WHD)
• 295 x 200 x 197 mm / 11.6 x 7.9 x 7.8 inch

• Notes
• Sennheiser Infrarot-Mono-Sender SI1010.
  Sendefrequenz 95 kHz, Modulation FM, Pegelhub ± 40 kHz, Hubanzeige durch Leuchtdiodenanzeige; zwei umschaltbare Eingänge für Mikrofon und Tonträger; Pegelregler; Diodenkette als Aussteuerungsanzeige; mit eingebautem Begrenzer-Verstärker.

• Net weight (2.2 lb = 1 kg)
• 5 kg / 11 lb 0.2 oz (11.013 lb)

• Mentioned in
• -- Original-techn. papers. (1979/1980)

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

• Other Models

• Here you find 295 models, 280 with images and 135 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Sennheiser Electronic (Labor W); Wennebostel