{"title":"Other Kits \u0026 Finished Boards","description":"","products":[{"product_id":"power-filter-board-4a-emi-filter-sound-booster-filter-socket-double-sided-immersion-gold-pcb","title":"Power Filter Board with 4A EMI Filter – Sound Improvement Tool, Filter Socket, Double-Sided Immersion Gold PCB","description":"\u003cdiv class=\"hb_v3_client_1303500\" style=\"margin: 0 0 5.0px 0;text-align: center;\"\u003e \u003c\/div\u003e\n\n\u003ch3 style=\"margin-top: 0.0px;margin-bottom: 0.0px;font-size: 16.0px;min-height: 21.0px;color: #3c3c3c;\"\u003e\u003cspan style=\"font-size: 24.0px;\"\u003ePower filter board 2A 4A 18A EMI filter, sound booster, filter socket\u003cspan style=\"color: #ff0000;\"\u003eThe kit needs to be welded, plus 3 yuan for replacement welding.\u003c\/span\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\n\u003cp\u003e\u003cspan style=\"font-size: 24.0px;line-height: 1.5;\"\u003ePCB is a double-sided gold PCB with lower internal resistance and better electrical conductivity\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp style=\"color: #000000;font-size: 14.444445px;line-height: 23.333334px;\"\u003e\u003cspan style=\"font-size: 24.0px;\"\u003eadopt\u003cstrong\u003e\u003cspan style=\"color: #ff0000;\"\u003eImported Italian AV\u003c\/span\u003e\u003c\/strong\u003eFilm capacitors, the effect is better than yellow ordinary imports and Swedish RIFA industrial capacitors, thick copper wire common-mode inductors, high-power connectors! 2A current capacity, used with decoders, soft sound, obvious improvement resolution, clean background\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp style=\"color: #000000;font-size: 14.444445px;line-height: 23.333334px;\"\u003e \u003c\/p\u003e\n\n\u003cp style=\"color: #000000;font-size: 14.444445px;line-height: 23.333334px;\"\u003e\u003cspan style=\"font-size: 24.0px;\"\u003e4A and 18A are suitable for power amplifiers and other power-hungry devices\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp style=\"color: #000000;font-size: 14.444445px;line-height: 23.333334px;\"\u003e \u003c\/p\u003e\n\n\u003cp style=\"color: #000000;font-size: 14.444445px;line-height: 23.333334px;\"\u003e\u003cspan style=\"color: #990000;\"\u003e\u003cspan style=\"font-size: 18.0px;\"\u003e\u003cspan style=\"font-family: microsoft yahei;\"\u003e3-Wire plug as input: connect AC GND AC separately\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp style=\"color: #000000;font-size: 14.444445px;line-height: 23.333334px;\"\u003e\u003cspan style=\"color: #990000;\"\u003e\u003cspan style=\"font-size: 18.0px;\"\u003e\u003cspan style=\"font-family: microsoft yahei;\"\u003e2-Wire plug for output 220V\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp style=\"color: #000000;font-size: 14.444445px;line-height: 23.333334px;\"\u003e\u003cspan style=\"color: #ff0000;\"\u003e\u003cspan style=\"font-size: 24.0px;\"\u003e\u003cspan style=\"font-family: microsoft yahei;\"\u003eLink directly at 220V with transformer. Sound details are clean! Parts need to be welded by hand!!\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp style=\"color: #000000;font-size: 14.444445px;line-height: 23.333334px;\"\u003ePCB size: 32X63MM\u003c\/p\u003e\n\n\u003cp style=\"color: #000000;font-size: 14.444445px;line-height: 23.333334px;\"\u003eWeight: about 24g\u003c\/p\u003e\n\n\u003cp style=\"color: #000000;font-size: 14.444445px;line-height: 23.333334px;\"\u003e\u003cspan style=\"font-size: 24.0px;\"\u003e\u003cspan style=\"color: #ff0000;\"\u003e\u003cstrong\u003eYes.\u003cspan style=\"color: #0000ff;\"\u003e2A\u003c\/span\u003eKit and\u003cspan style=\"color: #0000ff;\"\u003e4A\u003c\/span\u003eKit optional, 2A for headphones, front stage, DAC. 4A 18A for power amplifier\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp style=\"color: #000000;font-size: 14.444445px;line-height: 23.333334px;\"\u003e\u003cstrong\u003e\u003cspan style=\"font-size: 24.0px;\"\u003e4A oxygen-free copper filter common mode inductor\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp style=\"color: #000000;font-size: 14.444445px;line-height: 23.333334px;\"\u003e\u003c\/p\u003e\u003cdiv\u003e\u003cimg align=\"absmiddle\" referrerpolicy=\"no-referrer\" src=\"https:\/\/img.alicdn.com\/imgextra\/i1\/88221699\/TB2E8lbgVXXXXXWXpXXXXXXXXXX_!!88221699.jpg\"\u003e\u003c\/div\u003e\n\n\u003cp style=\"color: #000000;font-size: 14.444445px;line-height: 23.333334px;\"\u003e \u003c\/p\u003e\n\n\u003cp style=\"color: #000000;font-size: 14.444445px;line-height: 23.333334px;\"\u003e,\u003c\/p\u003e\u003cdiv\u003e\u003cimg align=\"absmiddle\" referrerpolicy=\"no-referrer\" src=\"https:\/\/img.alicdn.com\/imgextra\/i4\/88221699\/TB2qStwgVXXXXXFXXXXXXXXXXXX_!!88221699.jpg\"\u003e\u003c\/div\u003e\n\n\u003cp style=\"color: #000000;font-size: 14.444445px;line-height: 23.333334px;\"\u003e\u003c\/p\u003e\u003cdiv\u003e\u003cimg align=\"absmiddle\" referrerpolicy=\"no-referrer\" src=\"https:\/\/img.alicdn.com\/imgextra\/i2\/88221699\/TB2qSc7gFXXXXaPXpXXXXXXXXXX_!!88221699.jpg\"\u003e\u003c\/div\u003e\n\n\u003cp style=\"color: #000000;font-size: 14.444445px;line-height: 23.333334px;\"\u003e\u003c\/p\u003e\u003cdiv\u003e\u003cimg align=\"absmiddle\" referrerpolicy=\"no-referrer\" src=\"https:\/\/img.alicdn.com\/imgextra\/i3\/88221699\/TB2u_pXgVXXXXaHXpXXXXXXXXXX_!!88221699.jpg\"\u003e\u003c\/div\u003e\n\n\u003cp style=\"color: #000000;font-size: 14.444445px;line-height: 23.333334px;\"\u003e \u003c\/p\u003e\n\n\u003cp style=\"color: #000000;font-size: 14.444445px;line-height: 23.333334px;\"\u003e\u003cspan style=\"font-size: 24.0px;\"\u003e\u003cstrong\u003e\u003cspan style=\"color: #ff0000;\"\u003e18A is suitable for high-power power amplifiers, Class A, etc., with ultra-low internal resistance. Even a 100W power amplifier is very beneficial. The picture below is 18A.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp style=\"color: #000000;font-size: 14.444445px;line-height: 23.333334px;\"\u003e\u003c\/p\u003e\u003cdiv\u003e\u003cimg align=\"absmiddle\" referrerpolicy=\"no-referrer\" src=\"https:\/\/img.alicdn.com\/imgextra\/i1\/88221699\/TB2ozPRXam5V1BjSszfXXXjxXXa_!!88221699.jpg\" style=\"max-width: 750.0px;\"\u003e\u003c\/div\u003e\n\n\u003cp style=\"color: #000000;font-size: 14.444445px;line-height: 23.333334px;\"\u003e\u003cspan style=\"color: #ff0000;\"\u003e\u003cstrong\u003e\u003cspan style=\"font-size: 36.0px;\"\u003eItalian AV safety filter capacitor, the effect is better than the general French Thomson, Swiss RIFA, and the high frequency built-in is lower.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cdiv\u003e\u003cimg align=\"absmiddle\" referrerpolicy=\"no-referrer\" src=\"https:\/\/img.alicdn.com\/imgextra\/i4\/88221699\/TB2wvVfgVXXXXXoXpXXXXXXXXXX_!!88221699.jpg\" style=\"font-size: 14.444445px;line-height: 23.333334px;\"\u003e\u003c\/div\u003e\n\n\u003cp style=\"color: #000000;font-size: 14.444445px;line-height: 23.333334px;\"\u003e \u003c\/p\u003e\n\n\u003cp style=\"color: #000000;font-size: 14.444445px;line-height: 23.333334px;\"\u003e \u003c\/p\u003e\n\n\u003cp style=\"margin-top: 1.12em;margin-bottom: 1.12em;color: #000000;line-height: 19.0909px;\"\u003e\u003cspan style=\"font-family: kaiti_gb2312;\"\u003e\u003cspan style=\"font-size: 24.0px;\"\u003eIntroduction: With the development of electronic technology, high-power electrical appliances, switching power supplies, and other high-frequency electromagnetic interference problems have become extremely difficult problems in circuit interference. They interfere with each other and self-interfere, causing power supplies to be polluted by high-frequency EMI, causing equipment to operate unstably, and restarting frequently.\u003cspan style=\"line-height: 40.0px;\"\u003eIn this context,\u003c\/span\u003e\u003cspan style=\"line-height: 40.0px;\"\u003eEMI filters have been designed to greatly improve this situation.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp style=\"margin-top: 1.12em;margin-bottom: 1.12em;color: #000000;line-height: 19.0909px;\"\u003e\u003cspan style=\"font-family: kaiti_gb2312;\"\u003e\u003cspan style=\"font-size: 24.0px;\"\u003eSubject:\u003c\/span\u003e\u003c\/span\u003e\u003cspan style=\"font-family: kaiti_gb2312;font-size: 24.0px;line-height: 1.5;\"\u003eFor high-frequency electromagnetic interference (EMI), there are usually three techniques for power filtering to suppress interference noise. In practical use, two or even multiple techniques are often mixed. They are:\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp style=\"margin-top: 1.12em;margin-bottom: 1.12em;color: #000000;line-height: 19.0909px;\"\u003e \u003c\/p\u003e\n\n\u003cp style=\"margin-top: 1.12em;margin-bottom: 1.12em;color: #000000;line-height: 19.0909px;\"\u003e\u003cspan style=\"font-size: 24.0px;\"\u003e\u003cspan style=\"font-family: kaiti_gb2312;\"\u003e1. Add a capacitor between the zero wires of the power supply fire, that is, the X capacitor.\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp style=\"margin-top: 1.12em;margin-bottom: 1.12em;color: #000000;line-height: 19.0909px;\"\u003e \u003c\/p\u003e\n\n\u003cp style=\"margin-top: 1.12em;margin-bottom: 1.12em;color: #000000;line-height: 19.0909px;\"\u003e\u003cspan style=\"font-size: 24.0px;\"\u003e\u003cspan style=\"font-family: kaiti_gb2312;\"\u003e2. Add a capacitor between each power line and the ground line, that is, a Y capacitor.\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp style=\"margin-top: 1.12em;margin-bottom: 1.12em;color: #000000;line-height: 19.0909px;\"\u003e \u003c\/p\u003e\n\n\u003cp style=\"margin-top: 1.12em;margin-bottom: 1.12em;color: #000000;line-height: 19.0909px;\"\u003e\u003cspan style=\"font-size: 24.0px;\"\u003e\u003cspan style=\"font-family: kaiti_gb2312;\"\u003e3. Common mode rejection (suppression coils on two power lines).\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp style=\"margin-top: 1.12em;margin-bottom: 1.12em;color: #000000;line-height: 19.0909px;\"\u003e \u003c\/p\u003e\n\n\u003cp style=\"margin-top: 1.12em;margin-bottom: 1.12em;color: #000000;line-height: 19.0909px;\"\u003e\u003cspan style=\"font-size: 24.0px;\"\u003e\u003cspan style=\"font-family: kaiti_gb2312;\"\u003eThis one is designed by our store.\u003cspan style=\"line-height: 40.0px;\"\u003eEMI filter,\u003cspan style=\"color: #0000ff;\"\u003e\u003cspan style=\"font-size: 36.0px;\"\u003eIt's a combination of these three technologies.\u003c\/span\u003e,\u003c\/span\u003eIt allows low-frequency useful signals to pass smoothly, while suppressing high-frequency interference.\u003c\/span\u003e\u003cspan style=\"line-height: 27.0px;\"\u003eAlthough the current is not large, only 2A (400W)\/4A (800W), it is only suitable for equipment with small operating current, but with extremely high power requirements, such as low-power front stage, desktop CD, DAC decoder camera and other equipment input AC power purification. It can suppress power grid noise and high-order harmonics and noise and high-frequency harmonics generated by switching power supplies, motors, etc. Improve the purity of audio sound quality and reduce the noise generated by AC power interference.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp style=\"margin-top: 1.12em;margin-bottom: 1.12em;color: #000000;line-height: 19.0909px;\"\u003e\u003cfont color=\"#000000\" style=\"font-size: large;line-height: 27.0px;\"\u003e\u003cspan style=\"font-size: 24.0px;\"\u003e\u003cspan style=\"font-family: kaiti_gb2312;\"\u003e\u003cstrong style=\"line-height: 40.0px;\"\u003eInstallation location:\u003c\/strong\u003e\u003cspan style=\"color: #333333;line-height: 24.0px;text-indent: 28.0px;\"\u003ePower cords are the main way to interfere with incoming and outgoing devices. Through power cords, interference from the power grid can enter the device and interfere with the normal operation of the device. Similarly, the interference generated by the device may also be transmitted to the power grid through the power cord, interfering with the normal operation of other devices. Therefore,\u003cspan style=\"color: #0000ff;\"\u003eThe ideal installation location is the power socket of the device, such as before the audio equipment transformer, before switching the power supply, and the power port on the back of the monitor.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/font\u003e\u003c\/p\u003e\n\n\u003cp\u003e \u003c\/p\u003e\n\n\u003cp\u003e \u003c\/p\u003e\n","brand":"GoMakerHive: Ignite Your Spark into a Blaze.","offers":[{"title":"2A EMI kit requires soldering","offer_id":66690481979696,"sku":"3211952773967","price":21.16,"currency_code":"USD","in_stock":true},{"title":"4A EMI kit requires soldering","offer_id":66690482012464,"sku":"3211952773966","price":21.67,"currency_code":"USD","in_stock":true},{"title":"18A EMI kit requires soldering","offer_id":66690482045232,"sku":"3211952773968","price":22.05,"currency_code":"USD","in_stock":true},{"title":"4A EMI finished board","offer_id":66690482078000,"sku":"3564492695690","price":22.05,"currency_code":"USD","in_stock":true},{"title":"18A EMI finished board","offer_id":66690482110768,"sku":"3564492695689","price":22.45,"currency_code":"USD","in_stock":true},{"title":"2A EMI finished board","offer_id":66690482143536,"sku":"4265943837596","price":21.76,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/2367\/2112\/files\/O1CN01mIw0Yh1OQBd10zhvT__0-item_pic.webp?v=1777259583"},{"product_id":"vu-meter-head-driver-circuit-board-toshiba-ta7318p-power-amplifier-front-stage-bile-chassis-db-level-meter","title":"VU Meter Driver Circuit Board – Replacement for Toshiba TA7318P, for Amplifier Preamp \/ Tube Amp Chassis, dB Level Meter","description":"\u003cp style=\"margin: 0.0px;padding: 0.0px;color: #000000;font-style: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0.0px;text-transform: none;white-space: normal;widows: 2;word-spacing: 0.0px;background-color: #ffffff;font-size: 12.0px;\"\u003e\u003cspan style=\"font-size: 24.0px;\"\u003eThere are two types of driver boards. The A version drives the watch head with LED, and the B version drives the watch head with tungsten wire. The wiring methods of the two watch heads are the same, but there are 3 resistors that are different. Before shooting, you must first understand whether your watch head light source is LED or tungsten wire.\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp style=\"margin: 0.0px;padding: 0.0px;color: #000000;font-style: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0.0px;text-transform: none;white-space: normal;widows: 2;word-spacing: 0.0px;background-color: #ffffff;font-size: 12.0px;\"\u003e\u003cspan style=\"font-size: 24.0px;\"\u003eProfessional grade VU meter, level meter, power meter driver board, dynamic compression 4-fold protection function\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp style=\"margin: 0.0px;padding: 0.0px;color: #000000;font-style: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0.0px;text-transform: none;white-space: normal;widows: 2;word-spacing: 0.0px;background-color: #ffffff;font-size: 12.0px;\"\u003e \u003c\/p\u003e\n\n\u003cp style=\"margin: 0.0px;padding: 0.0px;color: #000000;font-style: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0.0px;text-transform: none;white-space: normal;widows: 2;word-spacing: 0.0px;background-color: #ffffff;font-size: 12.0px;\"\u003e\u003cspan style=\"font-size: 18.0px;\"\u003e1. Adopt an imported integrated circuit chip specially designed for audio level testing, including a square root dynamic exponential compression circuit (for example: input 1V, output 1V; input 4V, output 2V; input 9V, output 3V), taking into account dynamic and precision indication, the pointer swing is moderate, avoiding the drawbacks of small signal pointer not moving and large signal pointer bottoming.\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp style=\"margin: 0.0px;padding: 0.0px;color: #000000;font-style: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0.0px;text-transform: none;white-space: normal;widows: 2;word-spacing: 0.0px;background-color: #ffffff;font-size: 12.0px;\"\u003e\u003cspan style=\"font-size: 18.0px;\"\u003e2. No independent power supply is required, and it can be directly extracted from the original power supply. Compared with the TA7318P\/TA7332P, the cost of a transformer is reduced, and the installation is more convenient and flexible because it takes up half of the internal space of the chassis.\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp style=\"margin: 0.0px;padding: 0.0px;color: #000000;font-style: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0.0px;text-transform: none;white-space: normal;widows: 2;word-spacing: 0.0px;background-color: #ffffff;font-size: 12.0px;\"\u003e\u003cspan style=\"font-size: 18.0px;\"\u003e3. The circuit design is perfect, with the following characteristics:\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp style=\"margin: 0.0px;padding: 0.0px;color: #000000;font-style: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0.0px;text-transform: none;white-space: normal;widows: 2;word-spacing: 0.0px;background-color: #ffffff;font-size: 12.0px;\"\u003e\u003cspan style=\"font-size: 18.0px;\"\u003eThe input is equipped with a low-pass filter circuit to filter out high-frequency interference, suitable for harsh power supply environments (such as car audio systems).\u003cbr\u003e\n◆ The output sensitivity is adjustable, suitable for a variety of specifications.\u003cbr\u003e\n◆ The most commonly used 12VDC power supply, easy to use in car machines and PCs.\u003cbr\u003e\n◆ With power polarity reverse connection protection function.\u003cbr\u003e\n◆ With power-on pointer protection function, avoid priming the power-on pointer and prolong the service life of the watch head.\u003cbr\u003e\n\u003cstrong style=\"font-size: large;\"\u003e◆ Adopt 0.5W metal film resistor, large power margin, to ensure long-term continuous, reliable and stable operation.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp style=\"margin: 0.0px;padding: 0.0px;color: #000000;font-style: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0.0px;text-transform: none;white-space: normal;widows: 2;word-spacing: 0.0px;background-color: #ffffff;font-size: 12.0px;\"\u003e \u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"font-size: 28.0px;\"\u003e\u003cspan style=\"background-color: #ff0000;\"\u003eThe driver chip is: BA6318\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp style=\"margin: 0.0px;padding: 0.0px;color: #000000;font-style: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0.0px;text-transform: none;white-space: normal;widows: 2;word-spacing: 0.0px;background-color: #ffffff;font-size: 12.0px;\"\u003e \u003c\/p\u003e\n\n\u003cp style=\"margin: 0.0px;padding: 0.0px;color: #000000;font-style: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0.0px;text-transform: none;white-space: normal;widows: 2;word-spacing: 0.0px;background-color: #ffffff;font-size: 12.0px;\"\u003e \u003c\/p\u003e\n\n\u003cp style=\"margin: 0.0px;padding: 0.0px;color: #000000;font-style: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0.0px;text-transform: none;white-space: normal;widows: 2;word-spacing: 0.0px;background-color: #ffffff;font-size: 12.0px;\"\u003e \u003c\/p\u003e\n\n\u003cp style=\"margin: 0.0px;padding: 0.0px;color: #000000;font-style: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0.0px;text-transform: none;white-space: normal;widows: 2;word-spacing: 0.0px;background-color: #ffffff;font-size: 12.0px;\"\u003e\u003cspan style=\"color: #ff0000;\"\u003e\u003cspan style=\"font-size: 18.0px;\"\u003e[Technical parameters]\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp style=\"margin: 0.0px;padding: 0.0px;color: #000000;font-style: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0.0px;text-transform: none;white-space: normal;widows: 2;word-spacing: 0.0px;background-color: #ffffff;font-size: 12.0px;\"\u003e\u003cspan style=\"font-size: 18.0px;\"\u003e\u003cspan style=\"color: #ff0000;\"\u003e[Input sensitivity]: Input 400Hz audio signal, measure with AC mV file of Fluke 8025B digital multimeter, input terminal: 97mV, 39 level meter pointer is + 3dB position.\u003cbr\u003e\n[Power supply voltage]: 12V 0.12A.\u003cbr\u003e\n[Driver VU meter, level meter sensitivity]: Recommended 500UA sensitivity, 630 ohms internal resistance. At this time, the damping effect is quite good, and the damping effect of other specifications of the level meter will be different, and further adjustments need to be made.\u003c\/span\u003e  \u003cbr\u003e\n \u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp style=\"margin: 0.0px;padding: 0.0px;color: #000000;font-style: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0.0px;text-transform: none;white-space: normal;widows: 2;word-spacing: 0.0px;background-color: #ffffff;font-size: 12.0px;\"\u003e\u003cspan style=\"color: #0000ff;\"\u003e\u003cspan style=\"font-size: 18.0px;\"\u003eDescription: The power supply voltage must be strictly guaranteed to be 12V. Although it can work for a short time beyond 12V, it will burn the protection circuit for a long time. The wiring must be powered off, and the man-made failure caused by live operation is not covered by the warranty. The finished board is guaranteed for 3 months.\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cdiv\u003e\u003cimg align=\"absmiddle\" referrerpolicy=\"no-referrer\" src=\"https:\/\/img.alicdn.com\/imgextra\/i2\/88221699\/O1CN01zt94dU1OQC29VaXSu_!!88221699.jpg\" style=\"max-width: 750.0px;\"\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cimg align=\"absmiddle\" referrerpolicy=\"no-referrer\" src=\"https:\/\/img.alicdn.com\/imgextra\/i2\/88221699\/O1CN01qeQf151OQC27rP3dj_!!88221699.jpg\" style=\"max-width: 750.0px;\"\u003e\u003c\/div\u003e\n\n\u003cp style=\"margin: 0.0px;padding: 0.0px;color: #000000;font-style: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0.0px;text-transform: none;white-space: normal;widows: 2;word-spacing: 0.0px;background-color: #ffffff;font-size: 12.0px;\"\u003e\u003cstrong\u003e\u003cspan style=\"font-size: 20.0px;\"\u003e2024 latest watch head driver board\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp style=\"margin: 0.0px;padding: 0.0px;color: #000000;font-style: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0.0px;text-transform: none;white-space: normal;widows: 2;word-spacing: 0.0px;background-color: #ffffff;font-size: 12.0px;\"\u003e\u003cspan style=\"font-size: 20.0px;\"\u003e\u003cstrong\u003ePower supply voltage: AC 12V\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp style=\"margin: 0.0px;padding: 0.0px;color: #000000;font-style: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0.0px;text-transform: none;white-space: normal;widows: 2;word-spacing: 0.0px;background-color: #ffffff;font-size: 12.0px;\"\u003e\u003cspan style=\"font-size: 20.0px;\"\u003e\u003cstrong\u003eSize: 53 * 63mm\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp style=\"margin: 0.0px;padding: 0.0px;color: #000000;font-style: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0.0px;text-transform: none;white-space: normal;widows: 2;word-spacing: 0.0px;background-color: #ffffff;font-size: 12.0px;\"\u003e\u003cspan style=\"font-size: 20.0px;\"\u003e\u003cstrong\u003eStereo input and output, can drive two VU level meters, support LED and tungsten lamp backlit meter head\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp style=\"margin: 0.0px;padding: 0.0px;color: #000000;font-style: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0.0px;text-transform: none;white-space: normal;widows: 2;word-spacing: 0.0px;background-color: #ffffff;font-size: 12.0px;\"\u003e\u003cspan style=\"font-size: 20.0px;\"\u003e\u003cstrong\u003e\u003cspan style=\"color: #0000ff;\"\u003e\u003cspan\u003eDescription: The power supply voltage must be strictly guaranteed to be 12V. Although it can work for a short time beyond 12V, it will burn the protection circuit for a long time. The wiring must be powered off. The man-made failure caused by live operation is not covered by the warranty. The finished board is guaranteed for 3 months.\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp style=\"margin: 0.0px;padding: 0.0px;color: #000000;font-style: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0.0px;text-transform: none;white-space: normal;widows: 2;word-spacing: 0.0px;background-color: #ffffff;font-size: 12.0px;\"\u003e\u003c\/p\u003e\u003cdiv\u003e\u003cimg align=\"absmiddle\" referrerpolicy=\"no-referrer\" src=\"https:\/\/img.alicdn.com\/imgextra\/i2\/88221699\/O1CN01lz5hnh1OQBrp2NuhB_!!88221699.jpg\" style=\"max-width: 750.0px;\"\u003e\u003c\/div\u003e\n\n\u003cp style=\"margin: 0.0px;padding: 0.0px;color: #000000;font-style: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0.0px;text-transform: none;white-space: normal;widows: 2;word-spacing: 0.0px;background-color: #ffffff;font-size: 12.0px;\"\u003e \u003c\/p\u003e\n\n\u003cp style=\"margin: 0.0px;padding: 0.0px;color: #000000;font-style: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0.0px;text-transform: none;white-space: normal;widows: 2;word-spacing: 0.0px;background-color: #ffffff;font-size: 12.0px;\"\u003e\u003c\/p\u003e\u003cdiv\u003e\u003cimg align=\"absmiddle\" referrerpolicy=\"no-referrer\" src=\"https:\/\/img.alicdn.com\/imgextra\/i2\/88221699\/O1CN01FAyDPR1OQBsMbryZ6_!!88221699.jpg\" style=\"max-width: 750.0px;\"\u003e\u003c\/div\u003e\n\n\u003cp style=\"margin: 0.0px;padding: 0.0px;color: #000000;font-style: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0.0px;text-transform: none;white-space: normal;widows: 2;word-spacing: 0.0px;background-color: #ffffff;font-size: 12.0px;\"\u003e\u003c\/p\u003e\u003cdiv\u003e\u003cimg align=\"absmiddle\" referrerpolicy=\"no-referrer\" src=\"https:\/\/img.alicdn.com\/imgextra\/i2\/88221699\/O1CN01JleLhh1OQBfnSNXjp_!!88221699.jpg\" style=\"max-width: 750.0px;\"\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cimg align=\"absmiddle\" referrerpolicy=\"no-referrer\" src=\"https:\/\/img.alicdn.com\/imgextra\/i4\/88221699\/O1CN01iRPqGo1OQBffCf566_!!88221699.jpg\" style=\"max-width: 750.0px;\"\u003e\u003c\/div\u003e\n\n\u003cp style=\"margin: 0.0px;padding: 0.0px;color: #000000;font-style: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0.0px;text-transform: none;white-space: normal;widows: 2;word-spacing: 0.0px;background-color: #ffffff;font-size: 12.0px;\"\u003e\u003cspan style=\"color: #ff0000;\"\u003e\u003cstrong\u003e\u003cspan style=\"font-size: 28.0px;\"\u003eTungsten lamp head backlight pins do not need to distinguish between positive and negative\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp style=\"margin: 0.0px;padding: 0.0px;color: #000000;font-style: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0.0px;text-transform: none;white-space: normal;widows: 2;word-spacing: 0.0px;background-color: #ffffff;font-size: 12.0px;\"\u003e\u003c\/p\u003e\u003cdiv\u003e\u003cimg align=\"absmiddle\" referrerpolicy=\"no-referrer\" src=\"https:\/\/img.alicdn.com\/imgextra\/i4\/88221699\/O1CN01R5xlui1OQC3G6hNQX_!!88221699.jpg\" style=\"max-width: 750.0px;\"\u003e\u003c\/div\u003e\n\n\u003cp style=\"margin: 0.0px;padding: 0.0px;color: #000000;font-style: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0.0px;text-transform: none;white-space: normal;widows: 2;word-spacing: 0.0px;background-color: #ffffff;font-size: 12.0px;\"\u003e \u003c\/p\u003e\n","brand":"GoMakerHive: Ignite Your Spark into a Blaze.","offers":[{"title":"Driver LED meter head","offer_id":66690482798896,"sku":"5622416355455","price":24.9,"currency_code":"USD","in_stock":true},{"title":"Drive tungsten wire head","offer_id":66690482831664,"sku":"5622416355456","price":25.57,"currency_code":"USD","in_stock":true},{"title":"Discrete Head Drive - Finished Board","offer_id":66690482864432,"sku":"5622416355454","price":23.61,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/2367\/2112\/files\/O1CN01z1v7UK1OQC28LhAKh__88221699.webp?v=1777259623"}],"url":"https:\/\/gomakerhive.com\/collections\/other-kits-finished-boards.oembed","provider":"GoMakerHive: Ignite Your Spark into a Blaze.","version":"1.0","type":"link"}