Type:   9 tube TRF set with AVC and gramophone
Circa:  August 1930
Cabinet style: Combination radio and gramophone in console cabinet.
Tube Lineup : 1 x UX280; 3 x UY224; 3 x UY227; 2 x UX245
Power Input :  AC operated.  115VAC 25 or 60 Hz
Comment: In maketing literature, this radio was known as the "Marconi Senior Combination".

Link for Model 23 schematic

Model 23 radio.
Model 23 gramophone
Model 23 nameplate
All images in this table courtesy Radiomuseum.Org

Model 23 radio showing the principal parts when removed from the cabinet. .(Photo courtesy Canada Science and Technology Museum, Ottawa) 

Credits and References:

1) Canadian Marconi Service Manual Vol. 1
2) The Early Development of Radio in Canada 1901 to 1930 by Robert Murray
3) https://ingeniumcanada.org/ingenium/collection-research/collection-item.php?id=1971.0375.001
4) https://www.radiomuseum.org/r/canadia_ma_23.html
5) Lewis Bodkin  <05bodkin555(at)gmail.com>

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Mar 1319