Tonveredler Tone-Clarifier

Blaupunkt (Ideal), Berlin, später Hildesheim

Data
Forum
Pictures
Collections

  • Year
  • 1926
  • Category
  • Radio module post 1925 (not a part, not a key)
  • Radiomuseum.org ID
  • 86838
    • alternative name: Ideal-Radiotelephon- und App-fabr. || Ideal-Werke AG; Berlin (ab 1934)
    • Brand: Rotstern

 Technical Specifications

  • Power type and voltage
  • No Power needed
  • Loudspeaker
  • - For headphones or amp.
  • Material
  • Bakelite case
  • from Radiomuseum.org
  • Model: Tonveredler Tone-Clarifier - Blaupunkt Ideal, Berlin,
  • Notes
  • 7-stufig (0...6); würde man heute vermutlich als Tonblende bezeichnen.
    Export-version: Tone-Clarifier
  • Price in first year of sale
  • 8.00 RM
  • Author
  • Model page created by Bernd P. Kieck. See "Data change" for further contributors.

 Collections | Museums | Literature

Collections

The model Tonveredler Tone-Clarifier is part of the collections of the following members.

 Forum

Forum contributions about this model: Blaupunkt Ideal,: Tonveredler Tone-Clarifier

Threads: 1 | Posts: 5

Tone clarifier

Recently I got this item which I never have seen before.

It is a bakelite case with the inscription tone-clarifier and IDEAL prov.pat. There are two pairs of connectors - male and female, connected with each other. In between is a 7-positions selector.

Inside, in parallel with the connectors is a capacitor-column with taps at 0-2-4-6-8-10-12 nF, chosen by the selector.

I presume that this device has been used with the vintage receivers without built-in speaker to modify the tone. If connected between the receiver output and the speaker or earphones, it cuts off the higher frequencies and so modifies the tone. Cut-off frequency is chosen by the selector.

I would greatly appreciate any information, such as the manufacturer, year of production, etc.

Dejan Momirov, 21.Apr.12

Weitere Posts (5) zu diesem Thema.