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Mark II-C Maintenance
Mark II-C Maintenance

... mismatch; it will do no harm to the amplifier. With 100/60 watt models we recommend that when you run a single 8-ohm speaker you use the 60 watt position and plug into a 4-ohm jack. This will give the strongest possible output without damaging the speaker. You may get more clean power by switching t ...
HWS400 - Hexawave
HWS400 - Hexawave

... The HWS400 is a GaAs MMIC SPDT terminated (non-reflective) switch in a low cost QFN12L (3x3 mm) plastic package and can be used in both 50 ohm and 75 ohm systems. The HWS400 features low insertion loss and high isolation with very low DC ...
Chapter 3: Filters and Transfer Functions
Chapter 3: Filters and Transfer Functions

INTEGRATED CIRCUITS
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... reasonably be expected to result in personal injury. Philips Semiconductors customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Philips Semiconductors for any damages resulting from such application. Right to make changes – Phil ...
ECE 211 Electrical Circuits Lab I
ECE 211 Electrical Circuits Lab I

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SecureSync® LMR
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... approach with a compact modular hardware design to bring you a powerful time & frequency reference system at the lowest cost of ownership. Public Safety LMR, Military, and commercial applications alike will benefit from its reliability, security, and flexibility for synchronizing critical operations. ...
Application Note, 82C916/82C750
Application Note, 82C916/82C750

... If both a joystick connector and wave table (e.g., WaveBlaster) are supported, the TxD trace length between the joystick connector and wave table connector (or onboard wave table circuit) must be taken into consideration. Do not exceed a trace length of more than 6 inches or else the transmission li ...
Z4000 Envelope Generator
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... applying CV into the Deviater’s CV input, the same effect can be done using external cv control from sequencers, LFO’s, or another Z4000. You can even feedback the signal from the Z4000 into itself for further manipulation of the curve shapes and time. Segment Control Knobs Range up to 50% You might ...
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Current, Voltage, Resistance

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... The circuit boards have 8 available photodiode circuits using the OPA132A op-amp in the transimpedance configuration. Each photodiode circuit requires a feedback capacitor, feedback resistor, OPA132A, photodiode, two 2.2 uF decoupling capacitors (for V+ and V-), and two 15 nF decoupling capacitors ( ...
SC1887 Full Data Sheet, version 1.0
SC1887 Full Data Sheet, version 1.0

... spectral regrowth specifications. These specifications place high linearity demands on power amplifiers. Linearity may be achieved by backing off output power at the price of reducing efficiency. However, this increases the component and operating costs of the power amplifier. Better linearity may b ...
11 Myths About Analog Noise Analysis
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... is considered to be operating at 0 Hz, then there really is no such thing. As the frequency gets lower and lower, approaching 0 Hz, the period gets longer and longer, approaching infinity. The implication is that there is a minimum frequency that can be seen, even in a circuit that theoretically res ...
(p.946) Ch 33 Alternating Current Circuits 33.3
(p.946) Ch 33 Alternating Current Circuits 33.3

... voltages having different amplitudes and frequencies at a certain instant of time t = 0. As t increases, each phasor rotates counterclockwise and completely determines a sinusoidal oscillation. At the instant of time shown, the instantaneous value of v associated with each phasor is given in ascendi ...
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... We can therefore consider a wire in a circuit to be an equipotential – the change in potential over its length is slight compared to that in a resistor ...
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Week-4 - PCT Research Group
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... the quality of a system Ratio of the signal power (S) to the noise power (N) that’s present at a particular point in the transmission ...
74LS125 Quad 3
74LS125 Quad 3

... This device contains four independent gates each of which performs a non-inverting buffer function. The outputs have the 3-STATE feature. When enabled, the outputs exhibit the low impedance characteristics of a standard LS output with additional drive capability to permit the driving of bus lines wi ...
Chapter 5: Series Circuits
Chapter 5: Series Circuits

... • The laws, theorems, and rules that you apply to DC circuits – Also apply to AC circuits ...
DN451 - Current Sense Amp Inputs Work from –0.3V to 44V Independent of Supply
DN451 - Current Sense Amp Inputs Work from –0.3V to 44V Independent of Supply

... Monitoring current flow in electrical and electromechanical systems is commonly used to provide feedback to improve system operation, accelerate fault detection and diagnosis, and raise efficiency. A current monitoring circuit usually involves placing a sense resistor in series with the monitored cond ...
Experiment 10: Inverting Amplifier
Experiment 10: Inverting Amplifier

... Setting Attributes on Vsin: Capture • Or, click on the symbol for Vsin and change the values for the attributes in the Property Editor pop-up window. – FREQ is at the left side, VOFF and VAMPL are at the far right side. Scroll right to find VOFF and VAMPL ...
3 System definition - Telecommunications Industry Association
3 System definition - Telecommunications Industry Association

... This document has been prepared by the Source to assist the TIA Engineering Committee. It is proposed to the Committee as a basis for discussion and is not to be construed as a binding proposal on the Source. The Source specifically reserves the right to amend or modify the material contained herein ...
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Valve RF amplifier



A valve RF amplifier (UK and Aus.) or tube amplifier (U.S.), is a device for electrically amplifying the power of an electrical radio frequency signal.Low to medium power valve amplifiers for frequencies below the microwaves were largely replaced by solid state amplifiers during the 1960s and 1970s, initially for receivers and low power stages of transmitters, transmitter output stages switching to transistors somewhat later. Specially constructed valves are still in use for very high power transmitters, although rarely in new designs.
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