Traditional Chinese Household electrotherapy device: Circuit Design, Parts List & Workshop Prototype Guide
In short: Traditional Chinese Practical Home Electrotherapy Apparatus. 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 2305 words of English technical text, translated and preserved without editing. It is intended for experimental and reference use, not for regulated or commercial certification.
Household electrotherapy device alt="91.jpg (32523 bytes)">Figure 56(a)Figure 56(a) is the electrical schematic diagram of a household electrotherapy device. Its frequency and pulse current intensity can be adjusted in a wide range and are suitable for treating various diseases (for example, low back and leg pain, cervical spondylosis, numbness of limbs, etc.).Figure 56(a) is a composite tube pulse oscillator. The pulse signal increases through T2. The potentiometer RP2 is used at both ends of L3 to adjust the pulse output intensity. Two electrodes A and B are placed on different acupuncture points of the human body to stimulate the nerve fibers by current, dredge the meridians and treat diseases. RP1 and R2 control the pulse oscillation frequency of the composite tube, making the frequency adjustable in a wide range (continuously adjustable from 1 to 400Hz). Patients can place the two electrodes on different acupoints according to their own condition, and then adjust RP1 and RP2 (frequency and intensity) until they can tolerate it. Generally, during massage, RP2 is adjusted weaker and RP1 is adjusted lower. During treatment, RP2 is adjusted stronger and RP1 is adjusted higher. VT1 and VT2 are both 3AX81 type tubes. …
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Lei Cheng
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