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ONE TRANSISTOR - World Radio History
https://worldradiohistory.com/BOOKSHELF-ARH/Author-Groups/Rufus-Turner/125-Transistor-Projects-Rufus-Turner.pdf
Audio Amplifiers The single -stage AF amplifier ranks among the simplest of transistor circuits and was one of the first. In this application, the transistor typically offers many advantages: small size, light weight, good efficiency, and low power supply demands. Here are 20 audio amplifier circuits, ranging from con-
(#0093) World's Simplest Single Transistor Oscillator ...
https://www.youtube.com/watch?v=rpGOKGrcpAk
Easy relaxation oscillator. All you need is three components, plus the power source. Works as LED flasher, tone generator, or AM modulator. Very good web pag...
Transistor Tutorial, Part 7: Oscillators
http://www.learningelectronics.net/VA3AVR/tutorial/xtor/xtor7/xtor7.html
The tuned-collector oscillator shown in Fig. 5 is the simplest of many different LC oscillators. Transistor Q1 is configured as a common-emitter amplifier, with its base bias provided by the junction of series resistors R1 and R2. Emitter resistor R3 is decoupled from high-frequency signals by capacitor C3.
How to Build a Relaxation Oscillator with a Transistor
http://www.learningaboutelectronics.com/Articles/Relaxation-oscillator-circuit-with-a-transistor.php
In this project, we will show how to build a relaxation oscillator with a single transistor and a few other components such as a resistor and capacitor. A relaxation oscillator is an oscillator that repeats itself over and over again from the charging of a capacitor to some event threshold and then the discharging of the capacitor.
Simple Oscillator Circuits
https://makingcircuits.com/blog/simple-oscillator-circuits/
Simple Relaxation Oscillator using a Single BJT. The negative resistance area of a reverse-biased silicon transistor can be applied in a relaxation oscillator circuit. Its benefit is that an excess transistor is utilized instead of a UJT, which is generally more expensive, and it does deliver a minimum of components.
Transistor Oscillators - CircuitsToday
https://www.circuitstoday.com/transistor-oscillators
Essentials of Transistor Oscillators An oscillator must have the following three elements Oscillatory circuit or element. Amplifier. Feedback network. The oscillatory circuit or element, also called the tank circuit, consists of an inductive coil of inductance L connected in parallel with a capacitor of capacitance C. The frequency of oscillation in the circuit depends …
Simplest Oscillator (Transmitter) : 3 Steps - Instructables
https://www.instructables.com/Simplest-Oscillator-Transmitter/
With a standard 2N2222A, 2N3904 or another standard NPN transistor frequencies of up to 200MHz are capable. With a simple tweak or to an FM broadcaster can be made. Using the same base oscillator replace the speaker with an A.F. output transformer ($2.69 at radio shack). I used a 22uF cap and 10K resistor.
The transistor as a sine-wave generator (oscillator)
https://www.ld-didactic.de/documents/en-US/EXP/P/P4/P4163_e.pdf
A at point A (transistor T2's collector, feedback signal) as well as the voltage curve at point B (transistor T1's collector, input signal) to ground. c) Measuring the oscillator frequency with different RC elements – Swap pairwise the Wien bridge's resistors R and capacitors C according to the table and determine the oscillator frequency f.
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