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GR General Radio 1490-D 4-Dial Decade Inductor 1 mH/step to 1 H/step 1490D
GR General Radio 1490-D 4-Dial Decade Inductor 1 mH/step to 1 H/step 1490D
GR General Radio 1490-D 4-Dial Decade Inductor 1 mH/step to 1 H/step 1490D

GR General Radio 1490-D 4-Dial Decade Inductor 1 mH/step to 1 H/step 1490D

$ 356.4

Availability: 100 in stock
  • Item must be returned within: 14 Days
  • MPN: 1490-D
  • All returns accepted: Returns Accepted
  • Return shipping will be paid by: Buyer
  • Number of Decades: 4
  • Decade Box Type: Inductance
  • Condition: Used
  • Brand: General Radio
  • Refund will be given as: Money Back
  • Measurement Range: 11.11 H
  • Restocking Fee: No

    Description

    GR General Radio 1490-D 4-Dial Decade Inductor 1mH/step to 1H/step
    The GR 1490-D inductance decade is a convenient element for use in wave filters, equalizers, and tuned circuits throughout the range of audio and low radio frequencies. It can be used as a component in oscillators, analyzers, filters and similar equipment, and is especially useful during the preliminary design period, when the ability to vary circuit elements over relatively wide ranges is necessary to determine optimum operating values. As a moderately precise standard of inductance it has values of low-frequency Q, much larger than those of air-cored coils. Toroidal construction minimizes external magnetic fields, so that the coils can be stacked without errors from mutual inductance. The toroids are nearly immune to external magnetic fields.
    FEATURES:
    Aluminum covers provide electrostatic shielding and mechanical protection.
    Individual toroids are wax dipped to keep out moisture.
    1mH minimum to 11.11 H total
    The item is in good condition, tested and fully functioning.
    Shipping Weight (lbs.): 29
    Shipping Dimensions (in.): 24 x 18 x 10