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Item: 404407123457
Condition:New: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is … Read moreabout the conditionNew: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is applicable). Packaging should be the same as what is found in a retail store, unless the item is handmade or was packaged by the manufacturer in non-retail packaging, such as an unprinted box or plastic bag. See the seller’s listing for full details. See all condition definitionsopens in a new window or tab
Unbranded:Unbranded
Type:Board
Compatible Brand:Universal
UPC:Does not apply
EAN:Does not apply
Marke:Markenlos
Produktart:Amplifier Board
Markenkompatibilität:Universell
Marque compatible:Universelle
eBay Store Categories Store Categories Other Product View Details Product Feature: 1. Adopting high-quality power amplifier chip, model: TDA7294 2. The product adopts high-quality materials and has a long service life 3. The product is loose and needs to be assembled by oneself, making it very suitable for DIY enthusiasts 4. This is a high fidelity dual channel amplifier board 5.200W power product with very stable performance Product parameters: 1. Audio signal input: dual channel audio signal input; 2. Audio output: dual channel 100W+100W audio output; 3. Circuit principle: 2-way TDA7294 amplification output; 4. Working voltage: DC 24-40V 5. Input impedance: 22K OHM Output impedance: 4-8OHM 6. PCB specification: FR4 50X120X1.6MM TDA7294 Dual Channel Amplifier Board Material List: Imported original power amplifier IC TDA7294:2 PCS 1/4W resistor 22K: 6 PCS 1/4w resistor 680:2 PCS 1/4W resistor 10K: 2 PCS 1/4W resistor 30K: 2 PCS 1W resistor 10R: 2PCS 2W resistor 10R: 2PCS Diode 1N4148:2 PCS Thin film capacitor 100NF: 4PCS Thin film capacitor 10PF: 2PCS Electrolytic capacitor 22UF: 6PCS Electrolytic capacitor 47UF: 2PCS Thin film capacitance 2.2UF: 2PCS (axial coupling capacitance) Inductance 5UH: 2PCS 7.62 sockets, 2 positions, 3 positions, 1 PCS each 5.0 Socket: 2PCS Circuit board double-sided FR4 50X120X1.6MM: 1PCS Introduction to circuit principles: Dual channel TDA7294 amplification design, symmetrical design of left and right channels, one point grounding, no current sound, no noise, dual output of 100W, with some improvements made to the circuit. 1. The input port is connected in parallel with a 330P small capacitor. This method has two advantages: first, it can form a low-pass with R1, filter out some unnecessary residual Super high frequency, make the sound smoother, and also reduce the burden of the amplifier. The second is to eliminate circuit self-excitation. 2. A 10PF capacitor is connected in parallel to the feedback resistor, making the sound more transparent. 3. Use Bell networks and output inductors to prevent high-frequency self-excitation and compensate for the output. The above modifications, compared to many circuits, with a good power supply, can basically achieve over 99% performance of 7294. The voltage feedback is negative, and the performance is stable. Replacing different feedback capacitors can modulate different tones, suitable for grinding machines. Shipping list: Package 1DIY loose parts or finish board according buyer choose Shipping Policy Payment Method Returns Policy Shipping Policy Payment Method Returns Policy Home Payment Shipping About us Contact us Copyright©2018 datacaciques Home Payment Shipping About us Contact us Store Categories Store Categories Other Product View Details Product Feature: 1. Adopting high-quality power amplifier chip, model: TDA7294 2. The product adopts high-quality materials and has a long service life 3. The product is loose and needs to be assembled by oneself, making it very suitable for DIY enthusiasts 4. This is a high fidelity dual channel amplifier board 5.200W power product with very stable performance Product parameters: 1. Audio signal input: dual channel audio signal input; 2. Audio output: dual channel 100W+100W audio output; 3. Circuit principle: 2-way TDA7294 amplification output; 4. Working voltage: DC 24-40V 5. Input impedance: 22K OHM Output impedance: 4-8OHM 6. PCB specification: FR4 50X120X1.6MM TDA7294 Dual Channel Amplifier Board Material List: Imported original power amplifier IC TDA7294:2 PCS 1/4W resistor 22K: 6 PCS 1/4w resistor 680:2 PCS 1/4W resistor 10K: 2 PCS 1/4W resistor 30K: 2 PCS 1W resistor 10R: 2PCS 2W resistor 10R: 2PCS Diode 1N4148:2 PCS Thin film capacitor 100NF: 4PCS Thin film capacitor 10PF: 2PCS Electrolytic capacitor 22UF: 6PCS Electrolytic capacitor 47UF: 2PCS Thin film capacitance 2.2UF: 2PCS (axial coupling capacitance) Inductance 5UH: 2PCS 7.62 sockets, 2 positions, 3 positions, 1 PCS each 5.0 Socket: 2PCS Circuit board double-sided FR4 50X120X1.6MM: 1PCS Introduction to circuit principles: Dual channel TDA7294 amplification design, symmetrical design of left and right channels, one point grounding, no current sound, no noise, dual output of 100W, with some improvements made to the circuit. 1. The input port is connected in parallel with a 330P small capacitor. This method has two advantages: first, it can form a low-pass with R1, filter out some unnecessary residual Super high frequency, make the sound smoother, and also reduce the burden of the amplifier. The second is to eliminate circuit self-excitation. 2. A 10PF capacitor is connected in parallel to the feedback resistor, making the sound more transparent. 3. Use Bell networks and output inductors to prevent high-frequency self-excitation and compensate for the output. The above modifications, compared to many circuits, with a good power supply, can basically achieve over 99% performance of 7294. The voltage feedback is negative, and the performance is stable. Replacing different feedback capacitors can modulate different tones, suitable for grinding machines. Shipping list: Package 1DIY loose parts or finish board according buyer choose Shipping Policy Payment Method Returns Policy Shipping Policy We will arrange shipping for you within 24 Hours after payment cleared except the holidays. -We ship items to Worldwide. Thank you! -we will ship out the order in 1-2 business days after payment cleared .Since it is international shipping ,delivery time is about 15–28 business days to arrive to most countries. Payment Method We accept PayPal payment ONLY, and must be received within 5 days from the date of purchase. 2. It is easy and safe for you to pay by credit cards, debit cards, bank transfers and PayPal account balances. 3.Buyers are responsible for import duties,custom fees and taxes, if any, please check your country. Returns Policy 1.We believe our items are so outstanding. We are convinced you will be happy with your Purchase. 2. If you do not satisfy with our items. Please simply return to us within 30 Days in original condition. Just pay for the returned postage. Then we can issue full refund or resend the item to you after the returned item arrived at our warehouse. 3. Please include your eBay ID and item number with any email requests.
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