Q Standard - Inductor 103A

• Country
• United States of America (USA)

• Manufacturer / Brand
• Boonton Radio Corp.; Boonton, NJ

• Year
• 1955 ??

• Category
• Service- or Lab Equipment

• Radiomuseum.org ID
• 219909

• Picture
• Schematics

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Click on the schematic thumbnail to request the schematic as a free document.

• Wave bands
• - without

• Loudspeaker
• - - No sound reproduction output.

• Material
• Special material, described in the notes.

• from Radiomuseum.org
• Model: Q Standard - Inductor 103A - Boonton Radio Corp.; Boonton,

• Notes
• The Boonton Q Standard Set 103A comprises of a series of standard inductors.
  These inductors are designed specifically for use in the Q circuit of the Type 160-A and 260-A Q-Meters, for measuring the radio-frequency characteristics of capacitors, including materials, resistors, etc.
  Each Type 103-A Inductor consists of a high Q coil mounted in a convenient shield and provided with plug terminals which plug directly into the coil terminals of the Q-Meter to facilitate the quick interchange of inductors for measurements at various frequencies. Complete shielding eliminates errors in measurement due to coupling between the inductor and the test component and again with nearby objects, which coupling might alter the Q circuit constants during a measurement. Perfect shielding provides the desired stability.
  The Q of the majority of the Type 103-A Inductors is in the region of 200, over the normal range of tuning capacitance of from 50 to 400 pF. The approximate variation in Q with tuning capacitance of a typical 103-A Inductor is shown in the attached curve. A few of the higher inductance inductors have a Q of less than 200. The approximate Q of each inductor is listed.
  The true inductance of types A1 through A42 is adjusted to within 2 per cent of their nominal value.
  Tolerance on other coils is slightly wider. The total distributed capacitance varies as indicated.
  For convenience in selecting the correct inductance, the approximate frequencies at which each inductor resonates with two or three different tuning capacitances is included in the attached list.

• Price in first year of sale
• 18.00 $

• Source of data
• -- Original prospect or advert

• Author
• Model page created by Pius Steiner. See "Data change" for further contributors.

• Other Models

• Here you find 20 models, 19 with images and 10 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Boonton Radio Corp.; Boonton, NJ