-40%

GR General Radio 1490-F 4-Dial Decade Inductor 100µH/step to 100mH/step 1490F

$ 171.6

Availability: 100 in stock
  • Refund will be given as: Money Back
  • Restocking Fee: No
  • Condition: Used
  • Decade Box Type: Inductance
  • MPN: 1490-F
  • Return shipping will be paid by: Buyer
  • Number of Decades: 4
  • Measurement Range: 1.111 H
  • Item must be returned within: 30 Days
  • Brand: General Radio
  • All returns accepted: Returns Accepted

    Description

    Standard Description
    Description
    GR General Radio 1490-F 4-Dial Decade Inductor 100µH/step to 100mH/step
    The GR 1490-F Decade Inductor is a convenient inductance substitution box for use in wave filters, equalizers, and tuned circuits throughout the range of audio and low radio frequencies. As components in oscillators, analyzers, filters and similar equipment, decade inductors are 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 moderately precise standards of inductance they have 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 internal inductor toroids are virtually impervious to external magnetic fields.
    FEATURES
    :
    Aluminum covers provide electrostatic shielding and mechanical protection.
    Individual toroids are wax dipped to keep out moisture.
    zero minimum inductance to 1.111 H total in steps of 100µH
    The item is working but does not meet manufacturer's specifications. The measured values are all slightly below spec on all ranges.
    Shipping Weight (lbs.):
    27
    Shipping Dimensions (in.):
    26 x 20 x 11