• País
• Bélgica

• Fabricante / Marca
• SBR Société Belge Radio-Electrique, Bruxelles

• Año
• 1922

• Categoría
• Módulo de radio de antes de 1926 (ni parte ni manipulador)

• Radiomuseum.org ID
• 228393

Haga clic en la miniatura esquemática para solicitarlo como documento gratuito.

• Numero de valvulas
• 2

• Válvulas
• TM TM

• Principio principal
• Detector de tubo (sin "tuner")

• Gama de ondas
• - no hay

• Especialidades
• Converter

• Tensión de funcionamiento
• Baterías recargables o pilas / 4 Volt

• Altavoz
• - - No hay salida de sonido.

• Material
• Madera

• de Radiomuseum.org
• Modelo: Radio-Puzzle RPF - SBR Société Belge Radio-

• Forma
• Sobremesa, caja, normalmente con tapa (panel no inclinado).

• Ancho, altura, profundidad
• 190 x 190 x 200 mm / 7.5 x 7.5 x 7.9 inch

• Anotaciones
• • This unit is part of the so-called "Radio-Puzzle" which is modular in conception by placing every stage in a different module. It could be configured not only as a radio with different principles but also as telegraphy receiver and writer or as measuring equipment.
  • By combination of different units, one gets a complete radio or other application.
  • All connections are made with wires in clamping screws.
  • The clamping screws for the filament "A" battery and the plate voltage "B" battery are placed at the same height/depth so that they can be easily interconnected. The whole powerline setup is made as a daisy chain.
  • These units were initially manufactured and commercialised by S.I.B. from 1920 on before SBR took over the retailing under their own label in 1922.
  • Used coils on these units are Disco-self 1922 or the preceding SIB Disco-Self 1920. They are optionally mounted on the side panels of units A, B and E. The obtainable frequency range with those coils was approximately 13kHz (23000m) to 1,75MHz (170m).
  • The following modules of the Radio-Puzzle are known:
    • RPA = Tuning module and optionally a crystal detector. Despite the fact that this unit doesn't need power, it has power connectors to pass along the current to the next unit;
    • RPB = Tuning module with RF amplifier and detector;
    • RPC = RF amplifier with regenerative feedback or an autodyne with a "Compensateur"¹ and optionally a detector;
    • RPD = RF amplifer with RC² interstage coupling (autodyne amplifier together with RPC). However, this unit can be used as LF amplifier stage also;
    • RPE = LF amplifier with interstage transformers;
    • RPF = Tube detector (not an amplifier) to drive a morse writer or a repeater morse key. Driving power for the following relais after this unit comes from the preceding LF amplifier module (see schematic and explanation at the bottom of this page);
    • RPG = Variable coupling unit for 2 disco-self coils from which 1 has fixed position on the preceding unit RPA, RPB;
    • RPR = Variable coupling unit for 3 disco-self coils from which 1 has fixed position. It could be used to make a regenerative circuit by variable induction.

  Alternative for TM tubes: Marconi_R

  ¹ Compensateur: the differential variable capacitor to control the positive and negative feedback. Not a butterfly capacitor.
  ² Resistor and capacitor.

• Precio durante el primer año
• 203.00 BFr

• Autor
• Modelo creado por Dirk Bladt. Ver en "Modificar Ficha" los participantes posteriores.

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