Simple novice transmitter for the 3.5MHz amateur band
... very similar and so it is not suitable either. Possibly the most suitable valve for our purpose is the 613Q5 (ELM). This valve is rated to give 6 watts output with a plate current of just under 50mA. This suits our purpose nicely and it is the obvious choice. More will be said later on regarding the ...
... very similar and so it is not suitable either. Possibly the most suitable valve for our purpose is the 613Q5 (ELM). This valve is rated to give 6 watts output with a plate current of just under 50mA. This suits our purpose nicely and it is the obvious choice. More will be said later on regarding the ...
Chapter 5: Energy-Tapping Pulsed Systems
... charged can have any number of batteries and can be stacked as a 24-volt bank even though the driving battery is only 12 volts. Even more interesting is the fact that charging can continue for more than half an hour after the pulsing circuit is switched off. It can be tricky to get one of these circ ...
... charged can have any number of batteries and can be stacked as a 24-volt bank even though the driving battery is only 12 volts. Even more interesting is the fact that charging can continue for more than half an hour after the pulsing circuit is switched off. It can be tricky to get one of these circ ...
The United Kingdom Amateur Radio (Foundation) Licence
... Capacitors, diodes and meters (such as voltmeters). If these components (and a few others) are not correctly inserted, observing the correct polarities it will usually result in damaging the component so that it can no longer be used. AC or ‘Alternating Current’ is different from DC (‘Direct Current ...
... Capacitors, diodes and meters (such as voltmeters). If these components (and a few others) are not correctly inserted, observing the correct polarities it will usually result in damaging the component so that it can no longer be used. AC or ‘Alternating Current’ is different from DC (‘Direct Current ...
3 Analyser Tuning
... to control the RF/DC ratio of the instrument as it increases with mass. These voltages only have an effect when the MS1 quadrupole is used to scan i.e. MS mode, Parent mode and Neutral loss. Typically in MS mode these are set to 15 and 15 to ensure that standard resolution is obtained from the instr ...
... to control the RF/DC ratio of the instrument as it increases with mass. These voltages only have an effect when the MS1 quadrupole is used to scan i.e. MS mode, Parent mode and Neutral loss. Typically in MS mode these are set to 15 and 15 to ensure that standard resolution is obtained from the instr ...
PKB 4000B series Intermediate Bus Converters Input 36
... electric strength test and the isolation voltage (Viso) meets the voltage strength requirement for basic insulation according to IEC/EN/UL 60950-1. It is recommended to use a slow blow fuse at the input of each DC/DC converter. If an input filter is used in the circuit the fuse should be placed in f ...
... electric strength test and the isolation voltage (Viso) meets the voltage strength requirement for basic insulation according to IEC/EN/UL 60950-1. It is recommended to use a slow blow fuse at the input of each DC/DC converter. If an input filter is used in the circuit the fuse should be placed in f ...
AP7335A-50 N E W P R O D U C T 300mA, LOW QUIESCENT
... (GSM) have a transmit/receive duty factor of only 12.5 percent, enabling power savings by putting much of the baseband circuitry into standby mode in between transmit cycles. In baseband circuits, the load often transitions virtually instantaneously from 100µA to 100mA. To meet this load requirement ...
... (GSM) have a transmit/receive duty factor of only 12.5 percent, enabling power savings by putting much of the baseband circuitry into standby mode in between transmit cycles. In baseband circuits, the load often transitions virtually instantaneously from 100µA to 100mA. To meet this load requirement ...
RF3861 数据资料DataSheet下载
... • L2/C3/C4: Placed to optimize input match, and enhance out of band low frequency stability. • R2: Optionally placed to increase bias current and IP3. It has been found that 20Ω value is best case (see graph section of data sheet). • L1/C1: Influence output return loss. RF3861 has internal DC blocki ...
... • L2/C3/C4: Placed to optimize input match, and enhance out of band low frequency stability. • R2: Optionally placed to increase bias current and IP3. It has been found that 20Ω value is best case (see graph section of data sheet). • L1/C1: Influence output return loss. RF3861 has internal DC blocki ...
pickeringtest.com
... The 40-260 is the first in a new family of PXI based precision programmable resistor modules from Pickering Interfaces. This new generation of modules features high resistance setting resolution with excellent resistance stability and accuracy through the use of innovative switching networks and soft ...
... The 40-260 is the first in a new family of PXI based precision programmable resistor modules from Pickering Interfaces. This new generation of modules features high resistance setting resolution with excellent resistance stability and accuracy through the use of innovative switching networks and soft ...
Quad DMOS Full Bridge PWM Motor Driver A3988
... to an exposed surface on the PCB. Thermal vias are used to transfer heat to other layers of the PCB. ...
... to an exposed surface on the PCB. Thermal vias are used to transfer heat to other layers of the PCB. ...
FSA1208 Low-Power, Eight-Port, High-Speed Isolation Switch FSA1208 — Low-Power, Eight-Port, Features
... or obtain the most recent revision. Package specifications do not expand the terms of Fairchild’s worldwide terms and conditions, specifically the warranty therein, which covers Fairchild products. Always visit Fairchild Semiconductor’s online packaging area for the most recent package drawings: ...
... or obtain the most recent revision. Package specifications do not expand the terms of Fairchild’s worldwide terms and conditions, specifically the warranty therein, which covers Fairchild products. Always visit Fairchild Semiconductor’s online packaging area for the most recent package drawings: ...
SIGC84T120R3E
... warranties and liabilities of any kind, including without limitation, warranties of non-infringement of intellectual property rights of any third party. Information ...
... warranties and liabilities of any kind, including without limitation, warranties of non-infringement of intellectual property rights of any third party. Information ...
DC/AC Fundamentals: A Systems Approach
... DC/AC Fundamentals: A Systems Approach Thomas L. Floyd ...
... DC/AC Fundamentals: A Systems Approach Thomas L. Floyd ...
ET2060 Electro Mechanical Technology
... explain the (NEC) requirements concerning wiring devices. state the functions of limit switches and relays. list voltage levels commonly used in industrial locations. calculate and select service-entrance equipment. explain basic transformer action. explain the NEC requirements for grounding separat ...
... explain the (NEC) requirements concerning wiring devices. state the functions of limit switches and relays. list voltage levels commonly used in industrial locations. calculate and select service-entrance equipment. explain basic transformer action. explain the NEC requirements for grounding separat ...
SIFT Scanner System
... due to formed eddy currents within the IC. The device can be operated during the scan and multilayer devices are well suited for induction based on coupling. The power supply was developed for this application, as commercial units cannot operate at these high frequencies. Parametric shifts of the di ...
... due to formed eddy currents within the IC. The device can be operated during the scan and multilayer devices are well suited for induction based on coupling. The power supply was developed for this application, as commercial units cannot operate at these high frequencies. Parametric shifts of the di ...
FS-TRI-S - Fire Alarm Resources
... All power limited wiring must enter the electrical box separately from the electric light, power, Class 1, or non-powered limited fire protection signaling conductors. For the FS-TRI-R, wiring to terminal block positions 1, 2, 3, 4, and 5 must enter the outlet box separately from terminals 6, 7, and ...
... All power limited wiring must enter the electrical box separately from the electric light, power, Class 1, or non-powered limited fire protection signaling conductors. For the FS-TRI-R, wiring to terminal block positions 1, 2, 3, 4, and 5 must enter the outlet box separately from terminals 6, 7, and ...
Class 1000 Meter - E-Mon
... To ensure a safe installation, the Class 1000 meter requires an external switch mechanism, such as a circuit breaker, be installed on the Class 1000 MAINS input wiring. The switch mechanism must be installed in close proximity to the meter and easily reachable for the operator. This device must also ...
... To ensure a safe installation, the Class 1000 meter requires an external switch mechanism, such as a circuit breaker, be installed on the Class 1000 MAINS input wiring. The switch mechanism must be installed in close proximity to the meter and easily reachable for the operator. This device must also ...
MAX3187 ±15kV ESD-Protected, EMC-Compliant, 230kbps, Dual RS-232 Serial Port for Motherboards/Desktops _______________General Description
... Since January 1996, all equipment manufactured and/or sold in the European community has been required to meet the stringent IEC 1000-4-2 specification. The IEC 1000-4-2 standard covers ESD testing and performance of finished equipment; it does not specifically refer to integrated circuits. The MAX3 ...
... Since January 1996, all equipment manufactured and/or sold in the European community has been required to meet the stringent IEC 1000-4-2 specification. The IEC 1000-4-2 standard covers ESD testing and performance of finished equipment; it does not specifically refer to integrated circuits. The MAX3 ...
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... B. Please Note that prices should not be indicated in the Technical Bid. The Prequalification document including EMD as required in the Bid document should invariable be accompanied with the Technical Bid (Cover A). The outer envelope shall indicate the name and address of the bidders to enable the ...
... B. Please Note that prices should not be indicated in the Technical Bid. The Prequalification document including EMD as required in the Bid document should invariable be accompanied with the Technical Bid (Cover A). The outer envelope shall indicate the name and address of the bidders to enable the ...
Name:
... can adjust the seconds per division to display more or less of the waveform and you can adjust the vertical sensitivity to change the vertical volts per division. Oscilloscope math operations: This generation of oscilloscopes allows you to do mathematical operations on the input waveforms. You can t ...
... can adjust the seconds per division to display more or less of the waveform and you can adjust the vertical sensitivity to change the vertical volts per division. Oscilloscope math operations: This generation of oscilloscopes allows you to do mathematical operations on the input waveforms. You can t ...
section 260573 - overcurrent protective device coordination study
... B. Appropriate motor short-circuit contribution shall be included at the appropriate locations in the system so that the computer calculated values represent the highest short-circuit current the equipment will be subjected to under fault conditions. C. A tabular computer printout shall be included ...
... B. Appropriate motor short-circuit contribution shall be included at the appropriate locations in the system so that the computer calculated values represent the highest short-circuit current the equipment will be subjected to under fault conditions. C. A tabular computer printout shall be included ...
Mains electricity
Mains electricity is the general-purpose alternating-current (AC) electric power supply. In the US, electric power is referred to by several names including household power, household electricity, house current, powerline, domestic power, wall power, line power, AC power, city power, street power, and grid power.The two principal properties of the electric power supply, voltage and frequency, differ between regions. A voltage of (nominally) 230 V and a frequency of 50 Hz is used in Europe, most of Asia, most of South America and Australia. In North America, the most common combination is 120 V and a frequency of 60 Hz. Other voltages exist, and some countries may have, for example, 230 V but 60 Hz. This is a concern to travelers, since portable appliances designed for one voltage and frequency combination may not operate or may be destroyed by another.The use of different plugs and sockets in different regions provides some protection from accidental use of appliances with incompatible voltage and frequency requirements.