Mosquito Signal Tracer

Don Bosco Electronics Inc.; Hanover (N.J.)

Données
Forum
Images
Collections

  • Année
  • 1959 ??
  • Catégorie
  • Appareils de mesure et de dépannage (matériel de labo)
  • Radiomuseum.org ID
  • 111885

 Spécifications techniques

  • Gammes d'ondes
  • - sans
  • Tension / type courant
  • Piles sèches / 1,5 Volt
  • Matière
  • Matériaux divers
  • De Radiomuseum.org
  • Modèle: Mosquito Signal Tracer - Don Bosco Electronics Inc.;
  • Forme
  • Formes diverses décrites en notes
  • Remarques
  • Pen style signal tracer for servicing transistor radios.
  • Source
  • -- Collector info (Sammler)
  • Auteur
  • Modèle crée par d'un membre de A. Voir les propositions de modification pour les contributeurs supplémentaires.

 Collections | Musées | Littérature

 Forum

Contributions du forum pour ce modèle: Don Bosco: Mosquito Signal Tracer

Discussions: 2 | Publications: 2

My example was not functioning and I decided to dismantle the probe to understand its function and design.

The dismantle process can only be done in a destructive manner but yielded useful information as follows:

The device is essentially composed of a non blocking oscillator comprising only a pulse transformer with two windings, a PNP transistor (2N408) and a capacitor of value around 500pf.  The precise value was not readable as the capacitor appears to have been damaged (probably by connection to a high voltage equipment under test).

The circuit appears very similar to the Eico injector of a similar vintage (details on antiqueradios.com).

 

David Sanderson, 27.May.18

Weitere Posts (1) zu diesem Thema.

I have an example of this Dom Bosco signal injector.

Further information about the device is available on the a web site run by Steve Johnson.

 

 

 

David Sanderson, 27.May.18

Weitere Posts (1) zu diesem Thema.