Tech Exam Study Aid - effective July 1, 2010
... Which amateur band are you using when transmitting on 146.52 MHz? 2 meter band (2 = approximately 300/146.525) 2m band = 144 to 148MHz Which 70-centimeter frequency is authorized to a Technician class license holder operating in ITU Region 2? 443.350 MHz (70cm = approximately 300/443.350) 70cm band ...
... Which amateur band are you using when transmitting on 146.52 MHz? 2 meter band (2 = approximately 300/146.525) 2m band = 144 to 148MHz Which 70-centimeter frequency is authorized to a Technician class license holder operating in ITU Region 2? 443.350 MHz (70cm = approximately 300/443.350) 70cm band ...
Electricity is Exciting! for Fifth Graders
... b. Challenge: Try different combinations of resistors in series and parallel until you can get the most light from your LED and the least light from your LED. ...
... b. Challenge: Try different combinations of resistors in series and parallel until you can get the most light from your LED and the least light from your LED. ...
ZXTN25020DZ 20V NPN high gain transistor in SOT89 Summary Description
... 2. support or sustain life and whose failure to perform when properly used in accordance with instructions for use provided in the labeling can be reasonably expected to result in significant injury to the user. B. A critical component is any component in a life support device or system whose failur ...
... 2. support or sustain life and whose failure to perform when properly used in accordance with instructions for use provided in the labeling can be reasonably expected to result in significant injury to the user. B. A critical component is any component in a life support device or system whose failur ...
Resolving the error related “Incorrect Voltage at MCRL pin”
... inverter circuit that generates this high voltage from the 5volt supply voltage. Furthermore, to ensure the correct programming voltage, the programmer employs a feed back circuit that verifies the programming voltage via its A/D converter circuits. When one of these circuits fails to operate correc ...
... inverter circuit that generates this high voltage from the 5volt supply voltage. Furthermore, to ensure the correct programming voltage, the programmer employs a feed back circuit that verifies the programming voltage via its A/D converter circuits. When one of these circuits fails to operate correc ...
CA3059, CA3079
... DC Supply Voltage (Between Terminals 2 & 7) CA3059 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14V CA3079 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10V DC Supply Voltage (Between Terminals 2 & 8) CA3059 . . . . . . . . ...
... DC Supply Voltage (Between Terminals 2 & 7) CA3059 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14V CA3079 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10V DC Supply Voltage (Between Terminals 2 & 8) CA3059 . . . . . . . . ...
EMI Filter Design
... common triac-based wall dimmers is sometimes required at 120V nominal line. The circuit can be designed to handle both. The input EMI filter for the PFC-Flyback converter must be very carefully designed if it is to operate with triac dimmers. Any reversal of current following the triac firing will c ...
... common triac-based wall dimmers is sometimes required at 120V nominal line. The circuit can be designed to handle both. The input EMI filter for the PFC-Flyback converter must be very carefully designed if it is to operate with triac dimmers. Any reversal of current following the triac firing will c ...
PDF
... 4.8. Tank made from fiberglass reinforced polyester (non-corrosive). Tank bears no structural loading, it is an environmental shield only. Tank contains integrated rain shield and hot stick guide over the manual operating handle. 4.9. Permanent Magnetic Solenoid design for robust mechanical operatio ...
... 4.8. Tank made from fiberglass reinforced polyester (non-corrosive). Tank bears no structural loading, it is an environmental shield only. Tank contains integrated rain shield and hot stick guide over the manual operating handle. 4.9. Permanent Magnetic Solenoid design for robust mechanical operatio ...
Module Title: Electrical Science 2 - CIT
... b. A battery of 50 cells connected in series is charged through a fixed resistor from a constant 120 V supply. At the beginning of the charge, the e.m.f per cell is 1.9 V and the charging current is 4 A. When charging is almost complete, the e.m.f. per cell has risen to 2.2 V. Each cell has an inter ...
... b. A battery of 50 cells connected in series is charged through a fixed resistor from a constant 120 V supply. At the beginning of the charge, the e.m.f per cell is 1.9 V and the charging current is 4 A. When charging is almost complete, the e.m.f. per cell has risen to 2.2 V. Each cell has an inter ...
ST83003
... All ST products are sold pursuant to ST’s terms and conditions of sale. Purchasers are solely responsible for the choice, selection and use of the ST products and services described herein, and ST assumes no liability whatsoever relating to the choice, selection or use of the ST products and service ...
... All ST products are sold pursuant to ST’s terms and conditions of sale. Purchasers are solely responsible for the choice, selection and use of the ST products and services described herein, and ST assumes no liability whatsoever relating to the choice, selection or use of the ST products and service ...
Bip Transistor 160V 1.5A VCE(sat);500mV max. PNP Single TO-126ML
... customer' s products or equipment. To verify symptoms and states that cannot be evaluated in an independent device, the customer should always evaluate and test devices mounted in the customer' s products or equipment. SANYO Semiconductor Co.,Ltd. assumes no responsibility for equipment failures tha ...
... customer' s products or equipment. To verify symptoms and states that cannot be evaluated in an independent device, the customer should always evaluate and test devices mounted in the customer' s products or equipment. SANYO Semiconductor Co.,Ltd. assumes no responsibility for equipment failures tha ...
TRIAC
TRIAC, from triode for alternating current, is a genericized tradename for an electronic component that can conduct current in either direction when it is triggered (turned on), and is formally called a bidirectional triode thyristor or bilateral triode thyristor.TRIACs are a subset of thyristors and are closely related to silicon controlled rectifiers (SCR). However, unlike SCRs, which are unidirectional devices (that is, they can conduct current only in one direction), TRIACs are bidirectional and so allow current in either direction. Another difference from SCRs is that TRIAC current can be enabled by either a positive or negative current applied to its gate electrode, whereas SCRs can be triggered only by positive current into the gate. To create a triggering current, a positive or negative voltage has to be applied to the gate with respect to the MT1 terminal (otherwise known as A1).Once triggered, the device continues to conduct until the current drops below a certain threshold called the holding current.The bidirectionality makes TRIACs very convenient switches for alternating-current (AC) circuits, also allowing them to control very large power flows with milliampere-scale gate currents. In addition, applying a trigger pulse at a controlled phase angle in an AC cycle allows control of the percentage of current that flows through the TRIAC to the load (phase control), which is commonly used, for example, in controlling the speed of low-power induction motors, in dimming lamps, and in controlling AC heating resistors.