High Watt Variable Resistors

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  • The measurement of temperature
    R2, R3.R4, 1280, 1760and 960 ohms, constantan R5 30ohms high stability, 3watt 82 ohms high stability, f watt in series with 50 ohms wire-wound variable resistor .
  • Thermoelectric materials evaluation program. Technical summary report
    …of a one ohm 100-watt resistor in series with a half ohm 50-watt variable resistor in series with a pair of 10 ohm 100- watt variable resistors which are mechanically in … either in parallel (for high current conditions) or series…
  • Aerial characteristics
    Many of these readings were checked by means of a 40- watt oscillator, with a substitution resistor and capa- citor; and, while in all cases these latter readings were some- what higher than the bridge readings, the variations were followed consistently.
  • Creation and deployment of the NEREUS autonomous underwater chemical analyzer and Kemonaut, an odyssey class submarine
    To accomplish current reduction and thereby enable higher 47 plate voltages without requiring increased power, variable voltage to the injector and repeller plates … by way of two parallel 100K ( 1 watt potentiometers connected to the … via a lOOK n resistor tail.
  • Component development for war-time service applications
    …the following may be quoted: fixed resistors measuring £ x £ in in diameter, rated at 0-1 watt ; resistors with an overall stability … hermetically sealed voltage dividers; high -precision wire-wound voltage … 1 200 and upwards; variable capacitors only two-fifths…
  • Subject Index
    …158, valve failures in, 601 for integrating differential equations, 1867 resistor network for Laplace's equation … Laboratory, 2883 for small variations at a.f., 1078 … h.{.,2473 d.c., watt -second rating, 42 duct … 1316 Cathode-ray oscllographs, high -speed, 1890 multi-gun…
  • The Electrical Conductivity and Current Noise of Carbon Resistors
    …be attributed to the sweeping away of carriers from regions in which a variation in the number .... The non-reproducible effects at higher currents in the compound type resistor may perhaps be due to very local heating effects at internal contacts … when these effects occur is only of the order of 10-5 watt , and any departure from…
  • Impedance-measuring equipment for the 50¿500 Mc/s range
    The range of values which can be measured is limited because of variable standards, which are restricted in values at high fre- quencies, and also because the two components of impedance must be balanced with equal sensitivity. .... The principle of the equipment to be described is to compare the modulus of any impedance with that of a standard impedance, which in this case is a 100-ohm 0-1- watt resistor mounted so that its lead length is constant…
  • Electronics from the Ground Up: Learn by Hacking, Designing, and Inventing > A Review and Analysis of What We Have Built So Far
    Some other 60- watt lamps may have higher resistances and VR1 → 200 Ω. .... However, because of the amount of power that is dissipated by VR1, it is recommended that at least a ½-watt or 1-watt variable resistor is used.
  • Quantum test of the equivalence principle and space-time aboard the International Space Station
    QTEST’s mass standards work in the same framework as the Watt balance [81, 82]. .... They are based on inertial mass and do not rely on Earth’s gravity (which varies with location and time due to … require mechanically moving parts or standard resistors that are prone to … doesn’t exist) and realize high precision in the microscopic…