DIFFERENTIAL_TRANSFO_RMER_TRANSDUCER

Published:2009/7/23 23:19:00 Author:Jessie

Detects and responds with 0.1% linearity to core displacement. Low-level ac transformer output is converted to 10 to 50 ma d-c transmission signal with : w maximum power by high-input-impedance feedback amplifier. Precision exciter consists of constant-voltage 1-kc oscillator and high-Q swamping choke. Gain is stabilized by using separate d-c feedback loop for each group of d-c coupled transistors.-L. H. Dulberger, Constant-Current Technique Cuts Servo Response Time, Electronics, 32:28, p 52-54.   (View)

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PENTODE_COMMON_PLATE_MIXER

Published:2009/7/23 23:18:00 Author:Jessie

Circuit is good adder for coincident inputs. Operates best with positive input pulses and negative going output.-NBS, Handbook Preferred Circuits Navy Aeronautical Electronic Equipment, Vol. 1, Electron Tube Circuits, 1963, p N4-7.   (View)

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MARKER_IFF_MIXER

Published:2009/7/23 23:18:00 Author:Jessie

Combines 9-v positive markers with ill signals from 2 to 10 v.-NBS, Handbook Preferred Circuits Navy Aeronautical Electronic Equipment, Vol.1, Electron Tube Circuits, 1963, p N4-2.   (View)

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RANGE_STROBE_MARKER_MIXER

Published:2009/7/23 23:17:00 Author:Jessie

Common-cathode dual-triode video mixer is used for combining two positive-polarity radar range strobe markers.-NBS, Handbook Preferred Circuits Navy Aeronautical Electronic Equipment, Vol. 1, Electron Tube Circuits, 1963, p N4-2.   (View)

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4_W_CLASS_B_SERVO_AMPLIFIER

Published:2009/7/23 23:17:00 Author:Jessie

Gives power gain of 42 db. Voltage amplification is constant within 2.5 db of 42.5 db. Transformer data is for 400-cps operation. -Texas Instruments Inc., Transistor Circuit Design, McGraw-Hill, N.Y., 1963, p 241.   (View)

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DIFFUSED_BASE_GERMANIUM_VIDEO_AMPLIFIER

Published:2009/7/23 23:17:00 Author:Jessie

Use of standard stability criteria for wideband amplifiers gives current gain of 34 db up to 50 Mc when using any diffused base germanium mesa transistor similar to 2N2415. D-c biasing uses both series and shunt feedback to each stage, enabling circuit bandwidth to be extended to d-c if necessary.-Texas Instruments Inc., Transistor Circuit Design, McGraw-Hill, N.Y., 1963, p 268.   (View)

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PREFERRED_INTERMEDIATE_LEVEL_AMPLIFIER_1

Published:2009/7/23 23:22:00 Author:Jessie

Designed to amplify 1-v signal, such as output of mixer or cathode follower, to level required for input to video driver. Amplification of 3 to 5 may be increased by cascading. Use of R5 and C4 is optional.-NBS, Handbook Preferred Circuits Navy Aeronautical Electronic Equipment, Vol. I, Electron Tube Circuits, 1963, PC 26, p 26-2.   (View)

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HIGH_GAIN_VIDEO_PREAMP

Published:2009/7/23 23:21:00 Author:Jessie

Used in microwave interferometer system when additional gain is required along with 3.Mc bandwidth.-H. L. Bunn, Determining Electron Density and Distribution in Plasmas, Electronics, 34:14, p 71-75.   (View)

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DIGITAL_SERVO_MODULATOR

Published:2009/7/23 23:20:00 Author:Jessie

Used to subtract two analog currents of digital-to-analog converter, giving phase-sensitive 60-cps square-wave output signal. Modulator is driven from 60-cps line to maintain precise phase relationship with two-phase servo motor. Modulator gives 2.4.mV p-p output signal for 2-microamp input signal on one side, and 1.1 V pp for 1-ma input signal on one side. First output corresponds to least significant digit error in Gray-to-binary converter, and latter to most significant digit error.-Texas Instruments Inc., Transistor Circuit Design, McGraw-Hill, N.Y., 1963, p 492.   (View)

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PREFERRED_INTERMEDIATE_LEVEL_AMPLIFIER

Published:2009/7/23 23:19:00 Author:Jessie

Is noninverting linear pulse voltage amplifier. May follow radar second detector. Minimum bandwidth is 3 Mc and maximum output 6 v. Signal polarity is positive input and positive output.-NBS, Handbook Preferred Circuits Navy Aeronautical Electronic Equipment, Vol. II, Semiconductor Device Circuits, PSC 19 (originally PC 219), p 19-2.   (View)

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FINE_SERVO_REGULATOR

Published:2009/7/23 23:27:00 Author:Jessie

Used in double-loop servo system that holds field of Large electromagnet constant to one part in 15,000,000. Primary loop or rough regulator establishes small region over which fine regulator operates. Uses 20 paralleled transistors in output stage to regulate by dissipating some of available power.-A. M. Patlach, Precision Servo Regulator Controls High-Power Magnetic Field, Electronics, 33:45, p 66-69.   (View)

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Widest_range_V_F_converter

Published:2009/7/23 23:27:00 Author:Jessie

Fig. 12-7 This circuit features a 1-Hz to 100-MHz range with a linearity of 0.06%, 25 ppm/℃temperature coefficient, 50 nV/℃ (0.5 Hz/℃) zero shift, and a 0- to 10-V input range. To calibrate, apply 10.000 V and adjust the 100-MHz trim for 100.00 MHz at the output (if this is beyond counter range, the divide-by-32 signal at pin 16 of the LTC1043 should read 3.1250 MHz). Next, ground the input, install CCOMP (at the noninverting input of A1) and adjust the 1-Hz trim until the circuit oscillates at 1 Hz (use 1 μF for CCOMP). Finally, set the linearity trim for 50.000-MHz output with 5.000 V at the input. Repeat these adjustments until all three points are fixed. Linear Technology Linear Applications Handbook 1990 p AN14-2.   (View)

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THREE_INPUT_VIDEO_MIXER

Published:2009/7/23 23:27:00 Author:Jessie

Used in radar systems for combining any three of the following: radar video, beacon, range markers, range strobe, and azimuth markers.-NBS, Handbook Preferred Circuits Navy Aeronautical Electronic Equipment, Vol. 1, Electron Tube Circuits, 1963, p N4-1.   (View)

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QUADRATURE_SUPPRESSION

Published:2009/7/23 23:26:00 Author:Jessie

Two pairs of thermistor potentiometers balance the in-phase and quadrature components of input current, which are in phase and in quadrature with a-c reference of the same frequency, to permit displaying components simultaneously on two ac meters. Circuit and values for demodulators and preamplifier are same as for THERMISTOR CONTROL circuit.-I. C. Hutcheon, Using Thermistors as Servo Elements, Electronics, 34:5, p 52-55.   (View)

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TWO_STAGE_WIDEBAND_VIDEO_AMPLIFIER

Published:2009/7/23 23:26:00 Author:Jessie

D-c feedback provides stable d-c operation for normal production spread of components and normal temperature variations. Supply voltage changes up to 25% have negligible effect on performance. Open-loop bandwidth is 1 Mc for 50 db gain, and bandwidth at 30-db closed-loop gain is 17 Mc.-Texas Instruments Inc., Transistor Circuit Design, McGraw-Hill, N.Y. 1963, p 269.   (View)

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DISTANCE_MARKER_MIXER

Published:2009/7/23 23:25:00 Author:Jessie

Uses compensated plate loud for triodes to combine distance markers with radar video.-NBS, Handbook Preferred Circuits Navy Aeronautical Electronic Equipment, Vol. 1, Electron Tube Circuits, 1963, p N4-3.   (View)

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SINGLE_ENDED_VIDEO_PREAMP

Published:2009/7/23 23:25:00 Author:Jessie

Single-ended input from balanced mixer is achieved by terminating one arm of mixer. Bandwidth is 3 Mc. Used in microwave interferometer system.-H. L. Bunn, Determining Electron Density and Distribution in Plasmas, Electronics, 34:14, p 71-75.   (View)

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SERVO_FREQUENCY_COMPENSATION

Published:2009/7/23 23:25:00 Author:Jessie

Performs frequency compensation in servo sys tem by operating on modulation envelope of amplitude-modulated suppressed-carrier signal. Hybrid construction, replacement of linear circuits with switching circuits, and substitution of active filters for large L-C filters reduce size and weight.-F. A. Plemenos, The Packaging Revolution, Part VI: Converting to Microelectronics, Electronics, 39:4, p 103-109.   (View)

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ROUGH_SERVO_REGULATOR

Published:2009/7/23 23:29:00 Author:Jessie

Drives auto-transformer to establish narrow range of fine regulator for dose control of field of large electromagnet having 50-kw excitation.-A. M. Patlach, Precision Servo Regulator Controls High. Power Magnetic Field, Electronics, 33:45, p 66-69.   (View)

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FOUR_INPUT_VIDEO_MIXER

Published:2009/7/23 23:29:00 Author:Jessie

Used for combining four different positive-polarity marker pulses in radar system.-NBS, Handbook Preferred Circuits Navy Aeronautical Electronic Equipment, Vol. 1, Electron Tube Circuits, 1963, p N4-1.   (View)

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