Amplifier

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Ingenium, 2001.0286.001
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OBJECT TYPE: BATTERY/TUBE/TABLE
DATE: 1923
ARTIFACT NUMBER: 2001.0286.001

MANUFACTURER: MARCONI WIRELESS TELEGRAPH CO. OF CANADA LTD.
MODEL: MARCONIPHONE AMPLIFIER M1
LOCATION: Montreal, Quebec, Canada

More Information

General Information

Serial #: 853
Part Number: 1
Total Parts: 1
AKA: N/A
Patents: N/A
General Description: MAHAGONY WOOD CABINET; SYNTHETIC, METAL & GLASS COMPONENT PARTS & FITTINGS.

Dimensions

Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.

Length: 26.5 cm
Width: 21.0 cm
Height: 18.5 cm
Thickness: N/A
Weight: N/A
Diameter: N/A
Volume: N/A

Lexicon

Group: Communications
Category: Radio
Sub-Category: N/A

Manufacturer

AKA: MARCONI
Country: Canada
State/Province: Quebec
City: Montreal

Context

Country: Canada
State/Province: Quebec
Period: THIS TYPE OF AMPLIFIER USED EARLY 1920S+
Canada: MARCONIPHONE M1 AMPLIFIER MADE IN MONTREAL, PQ BY THE MARCONI WIRELESS TELEGRAPH CO. OF CANADA LTD. IN 1923.
Function: USED TO INCREASE THE VOLUME OF INCOMING SIGNALS AT RADIO FREQUENCY BEFORE THEY HAVE BEEN RECTIFIED BY THE DETECTOR. (REF. 2)
Technical: EXAMPLE OF EARLY SINGLE-STAGE AMPLIFIER DESIGNED TO REDUCE OR ELIMINATE INTERFERENCE BY REDUCING THE AMPLIFICATION OF UNDESIRED RADIO SIGNALS WHILE PERMITTING FULL AMPLIFICATION OF DESIRED SIGNALS. (REF. 2)
Area Notes: Unknown

Details

Markings: "MARCONIPHONE/ AMPLIFIER" and "MARCONI/ CANADA" marked on control panel. All contols, connections, etc. labelled. "THE MARCONI/ WIRELESS TELEGRAPH CO./ OF CANADA LIMITED/ MONTREAL/ PATENTED 1918-1923/ TYPE NO. M1 SERIAL NO. 858" incised on plate fixed to inside of cabinet door. "132" stamped on inside edge of cabinet. "MARCONI/ CANADA" stamped on tube receptacles. Other internal components bear mfr. markings. One vacuum tube marked "RVC/ PATENTED/ AS SET FORTH ON THE CARTON" on tube top; "RADIOTRON/ UX171" incised on base; "FOR USE IN LAST AUDIO STAGE ONLY" printed in red on paper label applied to sleeve. 2nd vacuum tube marked "WESTINGHOUSE/ [Westinghouse logo]/ UX-171-A" on tube top; "WESTINGHOUSE RADIOTRONS/ Sold By...../ Date..../ WARNING/ Positively no adjustment if this label is removed/ or if dealer's name and date of sale is omitted. SB" printed on paper label applied to sleeve. "Good" handwritten in pencil across front of label. Second label on sleeve reads "FOR USE IN LAST AUDIO STAGE ONLY".
Missing: APPEARS COMPLETE. From CA of 12/19/2001 by Matthew Bruce: No - appears complete
Finish: DARK WOOD CABINET. DARK BROWN SYNTHETIC PANEL BEARS OFF-WHITE MARKINGS & SILVER METAL INDICATOR ARM. BLACK MOULDED SYNTHETIC KNOB, TERMINAL POST CAPS, ETC. 2 GLASS VACUUM TUBES INSIDE CABINET HAVE SILVERED SLEEVES.
Decoration: N/A

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MARCONI WIRELESS TELEGRAPH CO. OF CANADA LTD., Amplifier, 1923, Artifact no. 2001.0286, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/2001.0286.001/

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