• Year
  • 1923
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 30999

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

 Technical Specifications

  • Number of Tubes
  • 2
  • Main principle
  • TRF with regeneration; Reflex
  • Tuned circuits
  • 2 AM circuit(s)
  • Wave bands
  • Broadcast (MW) and Long Wave.
  • Power type and voltage
  • Storage and/or dry batteries
  • Loudspeaker
  • - For headphones or amp.
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: Marconiphone V2A - Marconi Co. Marconiphone,
  • Shape
  • Tablemodel, Box - most often with Lid (NOT slant panel).
  • Dimensions (WHD)
  • 330 x 280 x 200 mm / 13 x 11 x 7.9 inch
  • Notes
  • Spade Tuning. Interchangeable Range Blocks. BBC/PMG stamp; GPO Nr.0175
  • Net weight (2.2 lb = 1 kg)
  • 4 kg / 8 lb 13 oz (8.811 lb)

 Collections | Museums | Literature

Museums

The model Marconiphone can be seen in the following museums.

 Forum

Forum contributions about this model: Marconi Co.: Marconiphone V2A

Threads: 2 | Posts: 2

"Spade tuning" = Eddy-current tuning. Also applied in the "Crystal A" set, where the loss cannot be compensated by reaction...

 Spades (coils removed)

 Left hand spade 

  range coil

 tuning rod with "scale" markings
 
There was also a "Micrometer tuning device" available, an attachment which can easily be made and permits of very fine adjustment of the tuning rods.

Konrad Birkner † 12.08.2014, 05.Jan.09

Weitere Posts (1) zu diesem Thema.

The following Range Blocks (Pancake coils) were available:

  185 -  250 m
  300 -  390 m
  390 -  530 m
  400 -  600 m
  600 -  800 m
  800 -1000 m
1000 -1300 m
1300 -1700 m
1700 -2100 m
2100 -2600 m
2600 -3200 m

The interchangeable regenerator units covered a wider range:

  185 -  250 m
  300 -  500 m
  450 -  800 m
  800 -1300 m
1300 -2100 m
2100 -3200 m

Konrad Birkner † 12.08.2014, 03.Jul.07

Weitere Posts (1) zu diesem Thema.