Marconiphone II (M2) Receiver


SPECIFICATIONS

Type: 1 tube regenerative set. Requires external (LF) audio amplifier which uses 2 tubes..
Frequency Range:  Broadcast band
Circa: 1924
Original cost: $95
Cabinet style: Tabletop

marconi/marconiphone_ii_01_front.jpg
The "A" battery has external posts but the "B" battery would probably be inside the cabinet. 
marconiphone_ii_05_inside.jpg
A look through the top. This example appears to be missing its one and only vacuum tube. The 'B' battery likley occupied the back half of the compartment. 
marconiphone_ii_04_nplate.jpg
Nameplate
All photos in this table via E-bay

 
 
002_02.jpg
THe M2 tuner with matching model LF audio amplifier. (Photo courtesy Canada Science and Technology Museum) 
m2_with_speaker_2.jpg
This M2 example is fitted with a horn type speaker whcih was typical for the 1920s. (Photo courtesy Canada Science and Technology Museum)


Contributors and Credits:

1) ) The Early Development of Radio in Canada 1901 to 1930 by Robert Murray
2) M2 with amp photo  https://ingeniumcanada.org/ingenium/collection-research/collection-item.php?id=1969.0880.001
 

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July 24/17