FAN5068 Components calculations and simulation tools / AN-6006:  Fairchild Application Notes / (app note added 6/06)

Femto Capacitance Meter:  (electronic design / schematic added 2/05)

Field Strength Meter (tomzi):  (circuit / schematic added 2/03)

Field strength meter for the 137 kHz band:  (diagram added 05/07)

Field Strength Meter for the137 Khz Band:  (circuit / schematic design added 6/06)

Field Strength Meter:  (electronic circuit added 1/05)

Filtersfree Program Designs and Analyzes Passive and Active Filters:  02/05/2004  EDN-Design Ideas  In low-noise analog circuits, a high-gain amplifier serves at the input to increase the SNR. The input signal level determines the input-stage gain; low-level signals require the highest gain. It is also standard practice in low-noise analog-signal processing to make the circuit's bandwidth as narrow as possible to pass only the useful input-signal spectrum. (added 6/06)

Fox-Hound Wire tracer:  Electronic circuit (added 9/04)

Free Program designs and analyzes passive and active filters:  07)/07)/05 EDN Design Ideas  / (added 11/05)  Filter design simplified with Matlab-focused program.

Frequency and Capacitance Meter:  ASCII format (added 4/02)

Frequency Comparator Draws 8 µA:  03/03/97 EDN-Design Ideas / (added 4/05)

Frequency Comparator has Status Output:  12/26/02 EDN-Design Ideas  / (added 3/03) The original application for the circuit was to check the number of revolutions of an engine with only one LED as an indicator. The measurement of the number of revolutions usually involves sensors with a frequency output proportional to the number of revolutions.

Frequency counter:  (diagram added 05/07)

Frequency Measurements using PC:  (diagram added 8/03)

Frequency source feeds entire lab:  01/23/03 EDN Design Ideas  /  (added 1/05)  Plumbing a laboratory with a standard frequency makes a lot of sense if the lab uses multiple frequency counters, spectrum analyzers, and other frequency-dependent test equipment. Rather than spending time keeping all of the instruments' oscillators in calibration or buying expensive, high-precision oscillators, you can use the circuit in Figure 1 to distribute a single calibrated frequency sou......

Frequency Window Comparator has hysteresis:  11/07)/96  EDN-Design Ideas  / (added 11/05) The frequency comparator in Figure 1 uses two VCOs. C1, R1+R2, and the voltage at pin 9 determine the frequency of IC1 (900 Hz). C3, R5+R6, and the voltage at pin 9 determine the frequency of IC2 (1580 Hz). If fIN is lower than 900 Hz, then the output P2 of phase-comparator 2 in IC1 is high and drives.... 

Frequently Asked Questions (FAQs) Analog Devices Energy (ADE) Products:  AN-639 Analog Devices Application Notes  (app note added 6/06)

Full Featured Transistor Tester:  (electronic schematic / circuit added 4/02)

Function generator:  (electronic circuit added 05/07)

Fundamentals of RF and Microwave Power Measurements:  Aligent App Note  (added 2/06)

Fundamentals of Signal Analysis:  Aligent App Note  (added 2/06)

Gali Test Fixture Instructions  AN-60-013:  Application Note MiniCircuits.com  (app note added 6/06)

Gali-TBF Test Fixture Instructions  AN-60-015:  Application Note MiniCircuits.com  (app note added 6/06)

Gas and Water Metering with the PIC16F91X Family:  Microchip Application Note Published 20-Jan-06   (app note added 6/06)

Get nine tips for making better resistance measurements:  Agilent Application Note   (app note added 6/06)

Grid Dip Meter:  (schematic added 8/03)

GSM Base Station Measurements:  Aligent Application Note  (added 2/06)