Traditional Chinese Electronic nanny: Circuit Design, Parts List & Workshop Prototype Guide (Part 2)

AI answer

In short: Traditional Chinese Electronic nanny — Circuit Design, Parts List & Workshop Prototype Guide (Part 2). 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 4735 words of English technical text, translated and preserved without editing. It is intended for experimental and reference use, not for regulated or commercial certification.

Premium 7,864 credits (=$78.64) · Priced by article length · permanent access after unlock · 1 $ = 100 credits

Electronic "Nanny" (2)Circuit principle:Figure 202-1 shows the electronic "nanny" transmitter circuit. The operational amplifier A1 constitutes an ultra-low-frequency oscillator of about 2Hz. The charge and discharge constants of the capacitor C1 are set by R4 and R5 respectively, …

Unlock + download PDF7,864 credits (=$78.64)
Credits balance0

Sign in to unlock

Login / Register

One-time payment per article, billed in credits (1 $ = 100 credits). You will review the invoice and the non-refundable digital-asset policy before anything is charged. The PDF is generated on demand and embeds a licensing watermark.

Unlock this article

Billed words3,932 words
Price7,864 credits (=$78.64)

One-time payment · permanent access after unlock · 1 $ = 100 credits

How payment & credits work (read first): this site runs entirely on credits. To unlock any article you must be a member — registration is free, but only logged-in members can top up and unlock. You top up in US dollars; once an admin confirms your payment, the amount is automatically converted to credits at 1 USD = 100 credits and added to your wallet. There can be a short delay between sending payment and confirmation — your pending order stays linked to your account and credits are added automatically when confirmed, so you never pay twice. Currently enabled payment methods are PayPal and Payoneer. See the full walkthrough ›

Member level pricing for this article

LevelCumulative top-upDiscountYour priceYou save
FreeFree—7,864 credits—
Bronze$100.00+2% off7,707 credits157 credits
Silver$1,000.00+5% off7,471 credits393 credits
Gold$5,000.00+10% off7,078 credits786 credits
VIP$20,000.00+15% off6,684 credits1,180 credits

Prices are billed in credits (1 $ = 100 credits). Your level upgrades automatically as your cumulative top-up grows. Top up to unlock a higher discount ›

All articles are digital assets. Once a PDF is downloaded, the purchase is final and non-refundable.

Please log in to unlock this article.

Log in / Register

Payment Methods

PayPal

pay@viprole.com
Lei Cheng

Payoneer

pay@viprole.com
Lei Cheng

Share this entryFacebookX / TwitterLinkedInRedditWhatsAppTelegram

Related

Same craft family — fermentation ratios, circuit builds and similar processes.

Traditional Chinese Electronic Qigong Master: Circuit Design, Parts List & Workshop Prototype Gu8 viewsTraditional Chinese Electronic diaper bell: Circuit Design, Parts List & Workshop Prototype Guid7 viewsTraditional Chinese Three-function electronic appliances for: Circuit Design, Parts List & Works7 viewsTraditional Chinese Baby electronic underpants: Circuit Design, Parts List & Workshop Prototype 8 viewsTraditional Chinese Electronic stethoscope: Circuit Design, Parts List & Workshop Prototype Guid8 viewsTraditional Chinese Electronic pager: Circuit Design, Parts List & Workshop Prototype Guide7 viewsTraditional Chinese DZ-1 low-frequency ultrasonic electronic: Circuit Design, Parts List & Works8 viewsTraditional Chinese Electronic hypnosis device: Circuit Design, Parts List & Workshop Prototype 8 viewsTraditional Chinese Electronic call for help: Circuit Design, Parts List & Workshop Prototype Gu8 viewsTraditional Chinese Electronic listening device: Circuit Design, Parts List & Workshop Prototype7 viewsTraditional Chinese Practical Human reaction velocity gauge: Circuit Design, Parts List & Worksh16 viewsTraditional Chinese Practical Human body reaction speed tester: Circuit Design, Parts List & Wor13 views

Popular in this library

Most-read entries across every category — a reliable next stop for crawlers and readers alike.

Traditional Chinese Practical Electronic Device: Circuit Design, Parts List & Workshop Prototype120 viewsTraditional Chinese Media: Herbal Preparation, Dosage & Home Craft Guide77 viewsTraditional Chinese Practical Alarm Device: Circuit Design, Parts List & Workshop Prototype Guid75 viewsTraditional Chinese Practical electronic products: Circuit Design, Parts List & Workshop Prototy57 viewsTraditional Chinese Luopan Compass: Magnetic Azimuth Graduation System and Calibration of the Ei55 viewsTraditional Chinese Practical electronic products: Circuit Design, Parts List & Workshop Prototy50 views