Ultraformer Type "A" and "B"

Phenix Radio Corp.; New York

  • Year
  • 1924
  • Category
  • Radio part (not a module) 
  • Radiomuseum.org ID
  • 221724
    • alternative name: Lacault, R.E.

 Technical Specifications

  • Wave bands
  • - without
  • Power type and voltage
  • Alternating Current supply (AC)
  • Loudspeaker
  • - - No sound reproduction output.
  • Material
  • Various materials
  • from Radiomuseum.org
  • Model: Ultraformer Type "A" and "B" - Phenix Radio Corp.; New York
  • Notes
  • Ultraformer type "A" and "B". Used as RF transformers in the Ultradyne (L1) superhet, along with other later models of Ultradyne radios. The type "A" transformer has less coupling compared to the type "B" transformer, with the type "A" having about a 0.25 inch space between the primary and secondary windings. The type "B" transformer has no space between the primary and secondary coils. The primary inductance for both types is about 1.6mH with a resistance of about 7.2 ohms. The secondary inductance for both types is about 6.1mH with a resistance of about 16 ohms.
  • Price in first year of sale
  • 5.00 USD
  • Mentioned in
  • Radio Broadcast, Jun. 1924, p. 175

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The model Ultraformer is part of the collections of the following members.

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