What is Three-function electronic appliance?

Three-function electronic appliance is a circuit & prototype documented in the Chinese Practical Production Technology collection. The entry keeps the original material list, quantities and sequence, so you can follow the method as printed.

Is this an authentic Chinese method?

Yes. The underlying text is from mainland Chinese workshop literature aimed at small producers and home makers; the English on this page is a direct translation with the original numbers and steps preserved.

What do I need to get started?

Common discrete components, a breadboard or PCB, a low-voltage supply and a multimeter. No specialised tool is required for the first build.

How long does it take?

The timing depends on your climate, batch size and equipment rather than on the text; the source records the process sequence rather than fixed hours, so follow the stages and check the material state at each one.

Can I run this as a small business?

Many entries in this collection were written with small-scale and home production in mind. Before selling, confirm the food-safety, labelling and local-registration rules that apply where you operate.

Is the full text available?

The complete English translation is in this article and is the same text used for the PDF download. Buying the PDF unlocks the full document without the preview cutoff.

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Three-function Electronic Appliance: Traditional Chinese Circuit Desig

AI answer

In short: Traditional Chinese Three-function electronic appliance. 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 1813 words of English technical text, translated and preserved without editing. It is intended for experimental and reference use, not for regulated or commercial certification.

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Three-function electronic applianceThe circuit is shown in Figure 126. R2, R3, and C2 form a controlled audio oscillator controlled by the NE555 strong reset pin ④. When switch S2 is turned on, C1 and C2 are connected in parallel and become a controlled low-frequency oscillator with an oscillation frequency of about 1Hz.(1) Eye sleep wake-up function for deaf-mute peopleX is the electronic alarm clock contact piece. Normally, the contact piece When the wake-up time comes, X is closed, making the ④ pin of NE555 at a high level, and the ③ pin outputs a square wave pulse. …

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Three-function Electronic Appliance: Traditional Chinese Circuit Desig

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