Traditional Chinese Practical Transistor: Circuit Design, Parts List & Workshop Prototype Guide
In short: Traditional Chinese Practical Transistor. This entry documents a circuit & prototype taken from Chinese practical-technology literature, written for small-scale makers and home producers. The text below is the full English translation of the original Chinese workshop notes, covering materials and quantities, the step-by-step sequence, and the practical cautions recorded in the source. Roughly 2268 words of English technical text, translated and preserved without editing. It is intended for experimental and reference use, not for regulated or commercial certification.
Transistor therapy deviceTransistor therapeutic devices treat a wide range of diseases. After clinical use, they have good curative effects on various functional diseases, such as neuralgia, nerve paralysis, joint pain and joint sprains. They also have certain curative effects on neurosis, tachycardia, hypertension, dizziness, vomiting, etc.This instrument is an electric pulse therapy instrument with different waveforms and frequencies, and can be widely used in acupuncture anesthesia and electroacupuncture treatment.The block diagram of the transistor therapy instrument is shown in Figure 44-1. It consists of a square wave generator, controller, pulse former, indicator and power supply.The circuit principle of the transistor therapy instrument is shown in Figure 44-2. The pulse waveform main oscillator part of the instrument is composed of high-power transistor VT4, transformers T2, T3, potentiometer RP2, resistor R12, and capacitor C7. When the waveform selection switch is in the continuous position, the oscillator works and outputs continuous waves. alt="72.jpg (17629 bytes)">Figure 44-1 …
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Lei Cheng
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