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Orgola Senior

Orgola Senior ; Mullard Wireless, (ID = 1449079) Kit
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Orgola Senior ; Mullard Wireless, (ID = 1449079) Kit
Mullard Wireless,: Orgola Senior [Kit] ID = 1449079 933x479
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For model Orgola Senior, Mullard Wireless, London (see also Mullard Radio Valve):
Optional cabinet: Radio for the Millions, title of article of Orgola Senior.
Country:  Great Britain (UK)
Manufacturer / Brand:  Mullard Wireless, London (see also Mullard Radio Valve)
Year: 1929 Category: Kit (Parts plus instruction) or building instructions only
Valves / Tubes 6: PM12 or PM14 or PM16 PM12 or PM14 or PM16 PM1A or PM2A or PM5B PM2DX or PM4DX or PM6D PM252 or PM254 or PM256 PM252 or PM254 or PM256
Main principle TRF with regeneration; 3 AF stage(s); Anode bend detection
Tuned circuits 2 AM circuit(s)
Loudspeaker Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)
Power out
from Model: Orgola Senior - Mullard Wireless, London see
Material Various materials
Shape Tablemodel, with any shape - general.

Replaces earlier Raleigh model.

A typical Kit TRF Radio of the "SG Det Pen" type (i.e. Screen Grid (Tetrode) RF, Triode detector and Pentode audio output) of late 1920s / early 1930s with driver and push pull output added for more volume.

Gram/P.U. Selection option.


  1. Filament/L.T.: The alternate valves/tubes are for 2V, 4V or 6V Accumulator. 30AH Exide recommended.
  2. Grid Bias: 2 x 12V G3 Siemens recommended, 3 different bias voltages from 1.5V to 22.5V
  3. HT: 3 x 50V Siemens 1035. 3  different HT voltages.

There is an A.C. Mains version using Indirect valves/tubes, Orgola A.C. and also the basic  Orgola.

There is a wind up gramophone and cabinet option, Orgola Radio Gramophone.

Mentioned in - - Manufacturers Literature (Radio for the Million Vol. 4 No.1 September 1929)

Model page created by Michael Watterson. See "Data change" for further contributors.

All listed radios etc. from Mullard Wireless, London (see also Mullard Radio Valve)
Here you find 139 models, 107 with images and 57 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.