Murdock variable condenser for Armstrong regenerative receiver

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Description:

This variable condenser was used by Edwin Howard Armstrong for his first regenerative radio circuit in 1912. Manufactured by Murdock Radio Co., the condenser stores an electric charge between intermeshed metal plates. The amount of charge stored can be varied by sliding one set of plates further into the unit.

Date Made: 1912

Associated User: unknownAssociated Person: Armstrong, Edwin HowardMaker: Murdock Radio Co.

Location: Currently not on view

See more items in: Work and Industry: Electricity

Exhibition:

Exhibition Location:

Credit Line: from Marion Armstrong

Data Source: National Museum of American History

Id Number: EM.314503.02Catalog Number: 314503.02Accession Number: 202631

Object Name: Capacitor, Variablecapacitorvariable condenserOther Terms: Capacitor, Variable; Radio

Measurements: overall: 5 in x 12 in x 3 3/4 in; 12.7 cm x 30.48 cm x 9.525 cm

Metadata Usage: CC0

Guid: http://n2t.net/ark:/65665/ng49ca746b2-578a-704b-e053-15f76fa0b4fa

Record Id: nmah_705891

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