0_1200_V_REGULATED_SUPPLY_FOR_RHOTOMULTIPLIER

Published:2009/7/21 4:54:00 Author:Jessie

Silicon diodes in R-C filter network gives 0.2% regulation over entire d-c output range, with temperature cosfficient only 0.1% of output voltage per deg C, for photomultiplier stage in airborne equipment. –J. G. Peddie, Network Filters Stabilize d-c Supply Over Wide Range, Electronics, 37:18, p 83.   (View)

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RMS_regulator_for_a_DC_power_supply_using_a_triac_phototransistor_and_UJT

Published:2009/7/21 4:51:00 Author:Jessie

RMS regulator for a DC power supply using a triac, phototransistor and UJT (courtesy Motorola Semiconductor Products Inc.).   (View)

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Triac_static_motor_starting_switch_for_05_HP_115_volt_AC_single_phase_induction_motors

Published:2009/7/21 5:22:00 Author:Jessie

Triac static motor-starting switch for 0.5 HP 115-volt AC single-phase induction motors (courtesy Motorola Semiconductor Products Inc.).   (View)

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Logic_to_inductive_load_interface_using_an_MOC3011_optically_coupled_triac_driver

Published:2009/7/21 5:21:00 Author:Jessie

Logic to inductive load interface using an MOC3011 optically coupled triac driver (courtesy Motorola Semiconductor Products Inc.).   (View)

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Line_voltage_compensation_circuit_using_UJT_trigger_for_a_thyrister_gate

Published:2009/7/21 5:19:00 Author:Jessie

Line-voltage compensation circuit using UJT trigger for a thyrister gate (courtesy Motorola Semiconductor Products Inc.).   (View)

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SCR_model__railroading_control

Published:2009/7/21 5:19:00 Author:Jessie

SCR model -railroading control. Bridge circuit CR1 through CR4 supplies pulsating DC to firing circuit Q1, R1 through R5 and C1, which phase controls SCR1. The SCR is in series with the train power and thereby controls the amount of current it receives (courtesy General Electric Company).   (View)

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Triac_trigger_using_an_LM3909_chip

Published:2009/7/21 5:13:00 Author:Jessie

Triac trigger using an LM3909 chip. This circuit operates from a 5-volt logic supply and provides gate trigger pulses of up to 200 mA. The LM3909 provides a 10μs pulse at about a 7 kHz rate. This is not the synchronized zero crossing type since the first trigger could occur at any time; however, the repetition rate is such that after the first cycle, a triac is triggered within 8 volts of zero with a resistive load and a 115-volt AC line. The Sprague transformer provides 2-to-1 stepup (courtesy National Semiconductor Corporation).   (View)

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Motor_control_circuitry_using_3650_optical_isolation_amplifiers

Published:2009/7/21 5:12:00 Author:Jessie

Motor control circuitry using 3650 optical isolation amplifiers (courtesy Burr-Brown Research Corporation).   (View)

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5_KV_A_F_PENTODE_OSCILLATOR_CRT_SUPPLY

Published:2009/7/21 5:10:00 Author:Jessie

Pentode audio oscillator uses simplified circuit to furnish only second anode potential for crt. –NBS, Handbook Preferred Circuits Navy Aeronautical Electronic Equipment, Vol.1, Electron Tube Circuits, 1963, p N14-4.   (View)

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GEIGER_MULLER_SUPPLY

Published:2009/7/21 5:43:00 Author:Jessie

Uses blocking oscillator to provide three stabilized levels of high voltage, at 900, 1,000, and 1,100 V, for G-M tube. Corona discharge tubes are switched in to provide regulation.-F. E. Armstrong, Battery Powered Portable Scaler, Electronics, 33:19, p 74-75.   (View)

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Thyrister_half_wave_control_circuit_with_UJT_trigger_designed_for_a_600_ohm_load

Published:2009/7/21 5:42:00 Author:Jessie

Thyrister half-wave control circuit with UJT trigger designed for a 600-ohm load (courtesy Motorola Semiconductor Products Inc.).   (View)

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Plug_in_speed_control_for_tools_and_appliances

Published:2009/7/21 5:41:00 Author:Jessie

Plug-in speed control for tools and appliances. Do not use this control on motors without commutators (courtesy General Electric Company).   (View)

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7_KV_A_F_PENTODE_OSCILLATOR_CRT_SUPPLY

Published:2009/7/21 5:40:00 Author:Jessie

Pentode feeds hermetically sealed unit containing transformer, paralleled 1B3's, and filter.-NBS, Handbook Preferred Circuits Navy Aeronautical Electronic Equipment, Vol. 1, Electron Tube Circuits, 1963, p N14-4.   (View)

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7_KV_OSCILLATOR_TYPE_CRT_SUPPLY

Published:2009/7/21 5:38:00 Author:Jessie

Audio oscillator provides screen-grid voltage for crt directly and second-anode voltage through high-voltage transformer and rectifier-filter.-NBS, Handbook Preferred Circuits Navy Aeronautical Electronic Equipment, Vol. 1, Electron Tube Circuits, 1963, p N14-2.   (View)

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Half_wave_variable_AC_control_for_small_motors_and_lamps

Published:2009/7/21 5:38:00 Author:Jessie

Half-wave variable AC control for small motors and lamps. In the lamp position the SCR is controlled by P1. In the motor position and with S2 open the circuit incorporates a feedback feature that maintains a constant motor speed as the load changes. Do not use this circuit for controlling fluorescent lamps, transformers, AC motors with capacitor start, induction motors, shaded pole motors and the like. The motor controlled must have a commutator as found in DC or AC-DC universal motors (courtesy General Electric Company).   (View)

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PENTODE_7_KV_A_F_OSCILLATOR_TYPE_CRT_SUPPLY

Published:2009/7/21 5:37:00 Author:Jessie

Example of 1958 circuit design, in which transformer, rectifiers, and filter are hermetically sealed in metal container. Oscillator frequency can be anywhere in range from 1 kc to 100 kc.-NBS, Handbook Preferred Circuits Navy Aeronautical Electronic Equipment, Vol. 1, Electron Tube Circuits, 1963, p N14-2.   (View)

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DUAL_TRIODE_7_KV_CRT_SUPPLY

Published:2009/7/21 5:36:00 Author:Jessie

Serves as high-voltage source for screen grid and final anode of 5 to 12-inch cathode-ray tubes.CR1 and CR2 are each six 1N588 silicon diodes in series. Operating frequency is about 450 cps for twin-triode tuned-plate oscillator having high L-C ratio.-NBS, Hand-book Preferred Circuits Navy Aeronautical Electronic Equipment, Vol. I, Electron Tube Circuits, 1963, PC 6, p 6-2.   (View)

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Triac_solid_state_relay_circuit_for_AC_power_control

Published:2009/7/21 5:33:00 Author:Jessie

Triac solid-state relay circuit for AC power control. The input circuit will function over the range of 3 to 33 volts (courtesy Motorola Semiconductor Products Inc.).   (View)

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MOS_to_AC_load_interface_using_an_MOC3011_optically_coupled_triac_driver

Published:2009/7/21 6:08:00 Author:Jessie

MOS to AC load interface using an MOC3011 optically coupled triac driver (courtesy Motorola Semiconductor Products Inc.).   (View)

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High_intensity_lamp_dimmer_or_fan_control

Published:2009/7/21 6:06:00 Author:Jessie

High-intensity lamp dimmer or fan control. This circuit is for use with high-intensity lamps with a built-in transformer only; do not use with 120-volt standard household incandescent or fluorescent lamps. Fan motors should not draw more than 1.5 amperes (courtesy General Electric Company).   (View)

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