DC 5-15V AD828 Stereo Preamp Power Amplifier Board Preamplifier Module Op Amp
2. Ultra-small volume dynamic microphone preamplifier board
3. Use high-quality non-polar capacitors for input and output coupling capacitors
4. The op amp uses a fever-grade AD828 patch
5. Easy to use and widely used
Working voltage: DC3.7V-15V
Size: 33*25MM
R7, R5 are magnification setting resistors (the default is about 5 times magnification, you can change the magnification according to your own needs, the resistance can be selected from 5k-47k, the larger the resistance, the higher the magnification, if you use a plug-in resistor, you can Remove the original chip resistor, and solder the plug-in resistor to the pads reserved at both ends of the chip position)
This microphone amplifier board does not have a power supply voltage regulator circuit, only battery or linear power supply can be used, and switching power supply cannot be used, otherwise there will be interference. If only one channel is used, the other channel needs to short-circuit the input to GND to avoid cross-signal interference
AD828 Microphone Preamplifier Board*1"
We accept Paypal ONLY. It is easy and safe for you to pay by credit cards, debit cards, bank transfers and PayPal account balances.
We will arrange shipping for you within 24 Hours after payment cleared except the holidays.
We only ship to the confirmed address provided by PayPal. Before you pay, please make sure your address in PayPal matches the address you would like us to ship to. If not, please let us know before we sent you the package, or we will not be responsible for any loss. hope you could understand.
-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.
* We believe our items are so outstanding. We are convinced you will be happy with your Purchase.
* 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 to you after the returned item arrived at our warehouse.
* Please include your eBay ID and item number with any email requests.
* When you satisfied with our product and services please leave us positive feedback.
* If you have got the package, please confirm "Delivery on time" For us.
* If a problem occurs, contact us immediately with any email request.
* Just contact us using the " Ask the seller a question" link on eBay.
Am 03.04.22 hat der Verkäufer die folgenden Angaben hinzugefügt: