Junior Kristall Mikrofon BDX

Herbay, Herbay-Ronette; Montreuil

Data
Forum
Pictures
Collections

  • Year
  • 1962/1963
  • Category
  • Microphone or Pick-up element
  • Radiomuseum.org ID
  • 243071

 Technical Specifications

  • Wave bands
  • - without
  • Power type and voltage
  • No Power needed
  • Loudspeaker
  • - For headphones or amp.
  • Material
  • Bakelite case
  • from Radiomuseum.org
  • Model: Junior Kristall Mikrofon BDX - Herbay, Herbay-Ronette;
  • Dimensions (WHD)
  • 65 x 80 x 35 mm / 2.6 x 3.1 x 1.4 inch
  • Notes

  • Microphone piezo,équipé d'une cellule RONETTE HOLLANDE modàle BDX.
    Connecteur à vis.
    Marqué sur le devant: Ronette Hollande et sur l'arrière: fabriqué en France.

  • Author
  • Model page created by Olivier Palix. See "Data change" for further contributors.

 Collections | Museums | Literature

Collections

The model Junior Kristall Mikrofon is part of the collections of the following members.

 Forum

Forum contributions about this model: Herbay, Herbay-: Junior Kristall Mikrofon BDX

Threads: 1 | Posts: 1

I have bought a JUNIOR BDX piezo microphone,but it was out of order.I decided to repair it.Fortunately the BDX cell is well designed,by unscrewing the cover access to the membrane is possible.I unstick the membrane with a cutter blade and remove it.Then I remove the defect crystal.I put a new piezo disc on two pieces of glued foam ,I put a vertical piece of wire on the center of the disc.

I put the membrane and glue it on the cell and on the vertical wire.

I have just to cut the wire and the repair was done

Now the microphone work again with a very good output,it is audible on a Aux input of an amplifier

Piezo dics are available for 1 or 2 euros in electronic stores.Complete spare piezo cells are not available.

Olivier

Attachments

Olivier Palix, 23.Oct.13

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