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Rocketfish UPS RF-825VA LCD Not Displaying—SMD Crystal Oscillator Specs and Replacement

Anonymous   04 Apr 2013   (0)
EEWeb
04 Apr 2013 09:01

Career Path Advice: Transitioning from Electrical Engineering to Security System Design?

Anonymous   03 Apr 2013   (5)
EEWeb
04 Apr 2013 13:37

Step Down Transformer With Nail Core Trips Breaker When Plugged In—Why?

Anonymous   03 Apr 2013   (2)
EEWeb
03 Apr 2013 22:55

Relation between wave spread area, frequency, uH, and tuning with trim capacitor?

Anonymous   03 Apr 2013   (2)
EEWeb
03 Apr 2013 22:20

Antenna Frequency & Power Relation and Purpose of Earthing in Antenna Circuits

Anonymous   02 Apr 2013   (5)
EEWeb
02 Apr 2013 12:23

Driving H-bridge at 150Hz Using Two IR2153 Half-Bridge Drivers With 180° Phase Shift

Anonymous   02 Apr 2013   (0)
EEWeb
02 Apr 2013 08:41
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C code example for reaction timer using PIC 16F877 microcontroller

Anonymous   01 Apr 2013   (4)
EEWeb
02 Apr 2013 04:51

Designing a Protective Grounding System Simulator for TT, IT, and TNC(S) Circuits

Anonymous   31 Mar 2013   (3)
EEWeb
23 Apr 2013 07:07

Vintage Heathkit & Custom Test Equipment from 70s-80s Listed on eBay by scratchndent11

Anonymous   31 Mar 2013   (3)
EEWeb
02 Apr 2013 19:29
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Funniest Nested Callbacks Example from Michelle Bu’s Blog – Programming Humor

Anonymous   31 Mar 2013   (1)
EEWeb
01 Apr 2013 02:17

Sample & Hold, PCM Signal Generation, TDM Circuits, Error Rate and Correction Methods

Anonymous   31 Mar 2013   (9)
EEWeb
07 Apr 2013 09:36

Generating 5V Output for PCB Using Batteries—Voltage Regulator or DC-DC Converter?

Anonymous   31 Mar 2013   (6)
EEWeb
02 Apr 2013 01:53

Sample & Hold, PCM Signal Generation, TDM, Bit Error Rate, Error Detection/Correction

Anonymous   31 Mar 2013   (1)
EEWeb
01 Apr 2013 01:22

FM Transmitter Design: uH Value, Coil Parameters, Frequency, Power, and Antenna Choice

Anonymous   31 Mar 2013   (4)
EEWeb
02 Apr 2013 18:25

Why Does Connecting Unsynchronized Generator and Utility via Transfer Switch Cause Damage?

Anonymous   30 Mar 2013   (7)
EEWeb
31 Mar 2013 17:07

Where to Find Software for SMT32F103ZE-EK + 3.0 TFT Touch Pad Digital Oscilloscope?

Anonymous   30 Mar 2013   (1)
EEWeb
05 Apr 2013 01:03

Power Engineering vs Electronics Engineering: Differences and Career Opportunities?

Anonymous   30 Mar 2013   (0)
EEWeb
30 Mar 2013 02:20

What Happens When Generator and Transformer Supplies Are Connected Without Synchronization?

Anonymous   30 Mar 2013   (8)
EEWeb
03 Apr 2013 22:17

How to Accurately Measure COS φ (Power Factor) in Electrical Circuits

Anonymous   30 Mar 2013   (1)
EEWeb
31 Mar 2013 16:03

Can an Engineering graduate work in a field that they did not study?

Anonymous   29 Mar 2013   (5)
EEWeb
30 Mar 2013 17:28

SW584 External Battery Not Charging iPhone 4S—Possible Compatibility or Cable Issue?

Anonymous   29 Mar 2013   (6)
EEWeb
19 Jul 2017 00:02

How to Measure Speaker Impedance in an Audio System with a Multimeter

Anonymous   29 Mar 2013   (14)
EEWeb
11 Feb 2015 21:24

BOQ and Specifications for 11-kV Overhead Line (1.5km, Coastal, 350A, 300mm²)

Anonymous   28 Mar 2013   (2)
EEWeb
29 Mar 2013 01:23

Human Rights Charity Seeking Volunteer with Legal Expertise in International Law

Anonymous   28 Mar 2013   (5)
EEWeb
27 Mar 2013 16:39

Effect of Increasing Governor Setting on 100-kVA Generator Supplying 40kW Load

Anonymous   27 Mar 2013   (6)
EEWeb
28 Mar 2013 03:00

How to Start Two-Stage CMOS Op-Amp Design for A0=1000, GBW=100kHz, ±3V Supply?

Anonymous   27 Mar 2013   (0)
EEWeb
27 Mar 2013 06:11

How to Calculate Output Power Rating of an FM Transmitter Circuit?

Anonymous   27 Mar 2013   (3)
EEWeb
27 Mar 2013 19:58

Aspect Ratio Calculation for NMOS and PMOS in Telescopic Single-Ended OTA (3.3V Supply)

Anonymous   26 Mar 2013   (0)
EEWeb
26 Mar 2013 04:44

How to Build a 500W UPS Inverter Circuit for Desktop PC – Circuit Diagrams Needed

Anonymous   25 Mar 2013   (5)
EEWeb
09 Apr 2013 11:22

Starting a Computer External Speaker Project: Key Components and Design Steps

Anonymous   25 Mar 2013   (4)
EEWeb
25 Mar 2013 16:20

How does a coil measure radio wave frequency and distance? uH vs turns, radius, diameter

Anonymous   25 Mar 2013   (5)
EEWeb
28 Mar 2013 22:02

Why Did ECM Motor in 480V 3-Phase CRAC Unit Ignore Phase Reversal While Others Reversed?

Anonymous   24 Mar 2013   (2)
EEWeb
26 Mar 2013 05:54

Best Sensors for Accurate Car Detection in Real Car Time Lap Racing Project

Anonymous   24 Mar 2013   (14)
EEWeb
25 Mar 2013 10:28

Why is GMR not used for capacitance calculations while SELF GMD is used for inductance?

Anonymous   23 Mar 2013   (0)
EEWeb
23 Mar 2013 22:46

How to Measure FM Transmitter Power Built with Transistors Over 2km Distance

Anonymous   23 Mar 2013   (2)
EEWeb
25 Mar 2013 22:38

Converting PWM to Sine Wave with Amplitude Controlled by Duty Cycle

Anonymous   23 Mar 2013   (3)
EEWeb
26 Mar 2013 12:24

Designing a Proportional AC Output Inverter Controlled by 0-5VDC Input

Anonymous   22 Mar 2013   (2)
EEWeb
22 Mar 2013 18:10

Reason for Telecom Equipment Operating at -48V DC Power Standard

Anonymous   21 Mar 2013   (4)
EEWeb
21 Mar 2013 16:58

How to Measure Building Earth Voltage Between Neutral and Earth Safely?

Anonymous   21 Mar 2013   (3)
EEWeb
21 Mar 2013 22:59

How to Post a Job Opening as a Member for a Small A&E Firm on This Site?

Anonymous   21 Mar 2013   (2)
EEWeb
13 Feb 2017 20:47

VFD vs Soft Starter: Which Motor Starter Offers Higher Efficiency and Performance?

Anonymous   21 Mar 2013   (5)
EEWeb
27 Mar 2013 04:11

How Does Magnetic Resistance Work in Exercise Bikes Like Indoor Trainers?

Anonymous   21 Mar 2013   (1)
EEWeb
25 Mar 2013 09:19

How Does a Coupling Capacitor Pass AC and Block DC in Amplifier to Antenna Circuits?

Anonymous   21 Mar 2013   (1)
EEWeb
21 Mar 2013 19:03

Using a Capacitor to Prevent Voltage Drop for 2A Load During Car Engine Cranking

Anonymous   20 Mar 2013   (12)
EEWeb
04 Aug 2013 22:24

How to Seamlessly Pair Android to Multi-Transmitter Bluetooth Audio Module Without Selection

Anonymous   20 Mar 2013   (8)
EEWeb
23 Mar 2013 14:56

Connecting 12V SuperCap Bank to Charge 72V Battery Bank from DC Wind Generator

Anonymous   20 Mar 2013   (8)
EEWeb
22 Mar 2013 17:50

Are electromagnetic waves inside antennas always standing waves or can they be traveling?

Anonymous   19 Mar 2013   (3)
EEWeb
20 Mar 2013 02:04

Features and Applications of SchmartBoard MSP430F5172 Microcontroller (32Kb Flash, 2Kb SRAM)

Anonymous   19 Mar 2013   (0)
EEWeb
19 Mar 2013 15:46

How to Auto Power Off Old Stereo When AUX Input Music Stops—Circuit Guide Needed

Anonymous   19 Mar 2013   (2)
EEWeb
26 Mar 2013 07:10

Voltage Across 1K Resistor in AC 250V 60Hz Circuit with Series Capacitor

Anonymous   19 Mar 2013   (6)
EEWeb
19 Mar 2013 09:24
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electronic circuits, electronic constructions, projects: power supply, amplifier

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