Note:The AD827JN is used,but work well! thank you!
1. The board uses two op amps, left OPA2604, on the right AD827JN (Used).
2. The board adopts a high-precision, lower-temperature floating round audio resistor. A better low-noise design.
3. The board is made of high quality ruby or black diamond electrolytic capacitors.
4. The board uses Siemens audio and positive capacitors.
5. Adopt LM317+LM337 ultra-low ripple voltage regulator circuit, voltage adjustable, high precision, adapt to more fever ceramic seal and gold seal op amp.
6. Both the positive and negative power supplies on the board are displayed. Red: U represents the positive power supply after voltage regulation, and Blue Godin represents the negative power supply.
Instructions for use:
1. Supply voltage: AC dual 15V-20V power supply, it is recommended to use the AC double voltage on the power amplifier ring transformer.
Recommended 15W dual AC15V small ring cattle transformer
2. Audio Wiring: In order to achieve noise-free effect, the audio input and output of the wrench are recommended to be connected using a shielded vertical audio cable to reduce noise.
1pcs* Updated OPA2604 AD827JN OPAMP Stereo Preamp Pre-amplifier Volume Tone Control Board
Maximum Power Per Channel:
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Packages from our warehouse in China will be shipped by ePacket or EMS depending on the weight and size of the product. Packages shipped from our US warehouse are shipped through USPS.
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How long does shipping take?
Shipping time varies by location. These are our estimates:
*This doesn’t include our 2-5 day processing time.
||*Estimated Shipping Time
||10-30 Business days
||10-30 Business days
|Australia, New Zealand
||10-30 Business days
|Central & South America
||15-30 Business days
||10-20 Business days
||15-45 Business days
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My tracking says “no information available at the moment”.
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We do not issue the refund if:
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- Other exceptional circumstances outside the control of https://www.pdkelectronics.com
*You can submit refund requests within 15 days after the guaranteed period for delivery (45 days) has expired. You can do it by sending a message on Contact Us page
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Please do not send your purchase back to us unless we authorise you to do so.
A few reasons why buy from us:
We try our best to make your shopping experience not only pleasant, seamless and hassle-free, but also secure.
Enjoy flexible international shipping services that currently operate in over 200 countries across the world.
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