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Audio Frequency Generator Circuit - ElectroSchematics.com
https://www.electroschematics.com/audio-frequency-generator/
This audio frequency generator is a triggered signal generator. When a positive pulse of about 6 volts (minimum) is fed to the circuits input , a modulated audio signal comes out of the output. The signal pattern is similar to a bird’s chirp. The pulse width of the trigger signal must be a minimum of 2.5 miliseconds.
Signal Generator - Audio Amplifier Design
https://renardson-audio.com/gen.html
A good place to start is by looking at how other designers have achieved better results with similar circuits. Going back to July 1981 a good example was published in Audio magazine, as part of a series of three articles by Bob Cordell: 'Build a High Performance THD Analyzer'.The generator circuit is shown as Fig.9 on page 39, and uses a very similar approach to my AFG/3.
100KHz square wave generator for testing audio amplifiers ...
https://myelectrons.com/100khz-square-wave-generator/
Square wave test signal generator C1 = 1 nF R1 = 6.2 kOhm R2 = 1 kOhm R3 = 300 Ohm R4 = 5 kOhm C2 = 1 uF C3 = 10 uF 25 V C4, C5 = 0.1 uF Obviously testing audio amplifiers with the test signal well centered relative to the ground is very convenient.
RadiolaGuy.com : Test equipment manual : Instruction ...
https://www.radiolaguy.com/Manuals/manuals_Test_Equipment1.htm
Heathkit Test Equipment Matrix
http://www.nostalgickitscentral.com/heath/products/test.html
TV Picture Tube Test Adapter-----AA-1: Audio Analyzer: Schematic--54: 62: $59.50: AD-1309: Noise Generator-----85: 91-AF-1: Audio Frequency Meter: 20Hz to 100 kHz - Schematic--51: 57: $34.50: AG-7: Audio Generator: sine/square---51: 52: $34.50: AG-8: Audio Generator: 18 Hz to 1 mHz sine wave - Schematic--52: 59: $29.50: AG-9: Audio Generator ...
Sweep Function Generator - Circuit Test
https://www.circuittest.com/Media/Data/Instructional/M-SWF-8020.pdf
Function Generator: Unlike conventional function generators, the SWF-8020 provides 6 waveforms. Pulse Generator: Adjustable pulse width from 100ns to 0.4s make the SWF-8020 an ideal instrument for Audio, Video and other basic …
Audio Test Oscillator
https://www.sound-au.com/project22.htm
Introduction. As a piece of test equipment, an audio oscillator has to be considered essential for anyone working in with hi-fi gear. Together with an audio millivoltmeter (as described in Project 16), and even better if you have access to an oscilloscope, you will be able to make proper measurements on everything from preamps, RIAA equalisation stages (for vinyl disks), tone …
A simple 2-tone-generator for testing the linearity of SSB ...
https://dk7ih.de/a-simple-2-tone-generator-for-testing-the-linearity-of-ssb-transmitters/
To measure the peak output of your transceiver you can either use the amplitude reading of your oscilloscope. Divide the peak-to-peak voltage by 2.81 (two times the square root of 2) to convert p.-p- voltage to effective voltage, square it and the divide the result by your 50 ohm resistive load. Veff. = Vpp. / 2.81 (I) P = Veff.² / R (II)
Homebrew test equipment for the radio amateur
https://www.qsl.net/ve7jpc/testequ.htm
Sine wave audio generator for checking the audio amplifier Signal generator to adjust a ssb-transmitter K6LS Test Equipment Links Site with interesting information on test equipment. K6LS RF SAMPLER From KC6WDK CRYSTAL TESTER RF WATTMETER From SM0VPO excellent web site on homebrewing GRID DIP OSCILLATOR Simple AF signal generator GEN-1.EXE From ...
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