Temperature-sensitive network drives astable multivibrator
Development of a simple circuit using two Zener diodes and five resistors, which provides a temperature-sensitive voltage to drive the astable multivibrator, is described.
Source record↗
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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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Efficient circuit triggers high-current, high-voltage pulses
Modified circuit uses diodes to effectively disconnect the charging resistors from the circuit during the discharge cycle. Result is an efficient parallel charging, high voltage pulse modulator with low voltage rating of components.
Green, E. D.↗
Microparticle impact sensor measures energy directly
Construction of a capacitor sensor consisting of a dielectric layer between two conductive surface layers and connected across a potential source through a sensing resistor permits measurement of energy of impinging particles without degradation of sensitivity. A measurable response is produced without penetration of the dielectric layer.
Alexander, W. M.↗
Carbon-arc rod holder has long life, reduces arc splatter
Carbon-arc rod holder with front end of beryllium oxide, a high electrical resistor and good thermal conductor, prevents nonuniform burning of the positive carbon rod and corrosion of the rod holder.
Source record↗
Test on 2n2369, npn silicon epitaxial transistors manufactured by fairchild semiconductor
Electric resistivity of carbon resistor material for calculating static response characteristics of carbon bolometer element
N-P-N JUNCTION↗
Experimental studies of the traveling-wave v- antenna and related antennas
Traveling wave V-antenna - effect on radiation pattern and V-antennas with more than one set of resistors and arms
TRAVELING WAVE↗
Micropower complementary logic.
Low power consumption of complementary resistor- diode-transistor logic /CRDTL/ circuits
INTEGRATED CIRCUIT↗
Sensistor produces long, reliable pulses.
Thermal monostable multivibrator with silicon resistor /Sensistor/ for accurate pulse production
IMPULSE GENERATOR↗
Analog voltage to duty cycle generator First quarterly progress report
System feasibility testing of analog voltage to duty cycle generator, and production process for thin film tantalum resistors
THIN FILM↗
Status report on Physics Branch low current detector program
Improvements for low current detector components - high megohm resistors, electrometer tubes, solid state devices, modulators, electron multipliers, insulators, and high impedance switching devices
DETECTOR↗
Static response characteristics for a carbon bolometer.
Electric resistivity of carbon resistor material determined as temperature function, calculating static response characteristics of carbon bolometer
ELECTROSTATICS↗
Basic considerations for DC to DC conversion networks.
Basic considerations for DC to DC conversion networks, detailing relationship between characteristics of active resistor and maximum AC POWER generated by active element
POWER CONVERSION↗
Heater control circuit provides both fast and proportional control
Proportional control circuit supplies a heater with full current, from a pulsating dc source, to a present temperature and then switches to proportional control for fine temperature regulation. Two resistors and a diode are added to the existing circuit. The circuit can be adapted to control other functions.
Baslock, R. W.↗
Integrator can easily be set and reset with an electronic switch
Electronic switch sets and resets integrator circuit to some initial condition using a grounded capacitor. This circuit also uses four equal resistors and an operational amplifier.
Deboo, G. J.↗
Solid-state wide-range low power camera timer for space applications
This paper describes a device for timing sequentially 8 film exposures of a rocket-borne camera with a time interval between each exposure to allow the camera film transport mechanism to step the film from one frame to the next after each exposure. Each exposure time can be independently adjusted from a a fraction of a second to several hundred seconds by changing the value of a timing resistor and/or capacitor. All of the rocket interface circuits have ben designed to minimize the coupling of spurious noise signals into the timer.
Solid state device↗
Semiconductor diffusion technology
Production capability for specific monolithic and hybrid semiconductor circuits and standard test mask incorporating transistor and resistor patterns
MASK↗
Current results of the electronic part sterilization program at the jet propulsion laboratory.
Electronic parts sterilization program noting results on capacitors, resistors, varactor diodes, microcircuits, transistors, transformers, diodes and operating temperatures
ELECTRONIC PACKAGING↗
Screened circuit fabrication equipment.
Stencil screening methods for printing integrated circuit patterns for resistors, capacitors, etc, discussing automation possibilities
INTEGRATED CIRCUIT↗