The earliest Canadian Marconi receivers were given ascending Roman numeral model designators. These Roman numerals are also referenced here along with their corresponding Arabic numbers. The very first receiver in the Marconiphone series did not bear any model designator other than Marconiphone. This ad, from May 1924, shows the early Marconiphone model number progressions . The numeric 1 (one) was added to this web document for purposes of clarity
Type: Regenerative setCirca:Introduced May 1922 as per the date on the schematic.
Tube Lineup : The receiver employed one 201A tube and the audio amplifier had two of them.
Power Input : DC operated.
Original List Price: $50
Cabinet style: Tabletop. in a solid mahogany cabinet.
Artifact Markings:
"MARCONIPHONE" and
"MARCONI/ CANADA" printed on receiver control panel. All controls, connections,
etc. labelled. Silver metal fixed to inside of cabinet door incised "THE
MARCONI/ WIRELESS TELEGRAPH CO./ OF CANADA LIMITED/ MONTREAL/ PATENTED
1918-1923/ TYPE NO. M1 SERIAL NO. 816". "131" stamped into lower rear inside
edge of cabinet. "MARCONI/ CANADA" incised in receptacle for vacuum tube.
Internal component located between coupler & tuning coil marked "HOLD-TITE/
CARTER RADIO CO./ CHICAGO". Vacuum tube marked "CANADIAN/ WESTINGHOUSE/
201 A" on tube top. This description came from the Museum of Science and
Technology in Ottawa.
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| Marconiphone I by itself .(Photo courtesy Canada Science and Technology Museum) |
