Check the listing for details. Based on MBL6010D Preamp Preamplifier NE5534 Board Solder Compatible AD797 PCB. Condition: New. Listed at 6.10 USD. Based on MBL6010D Preamp Preamplifier NE5534 Board Solder Compatible AD797 PCBDescription: 1. The line of the previous stage is the same as the main amplification part of the original machine, and the material used is close to the original machine, and it adopts all direct-coupled lines. 2. Play the circuit is to play the power, MBL circuit attaches great importance to the details of the power supply, each op amp decoupling, are composed of 8 single and different capacitors, which are 220UF 104 (or 224) 103 102. Under different frequencies Weak audio can be fully played. 3. Whole DC, without any isolation capacitor. Thanks to the precision of 6 adjustable resistors. Each independent circuit has an independent ground, a point grounded, much more delicate than other large-area grounded sounds, and no hum. The top layer of copper is used as a shield signal, unlike other MBL versions. Randomly laying together, this will affect the degree of separation, wiring is wrong there is noise. PCB size: 100mm*100mm*1.6mm Packag list:1PCS * PCB Board PaymentDelivery detailsTerms of salesReturnContact usPaymentWe accept payment by PayPal only.Payment must be received within 7 days after auctions ended.Delivery detailsItems will be shipped within 1-2 business days when we received payment.Shipping to USA takes about 8-15 days in normal condition,other countries takes about 15-35 days.Please verify your eBay primary shipping address. We are not responsible for any wrong or undeliverable addresses.Terms of salesAll items will be checked before packingYour feedback and 5 star ratings are much appreciated.If you are unhappy with your purchase, please contact us on negative / neutral feedback or low star ratings.ReturnIf you receive an item is damaged or defective, we will refund you or replace it with identical one.All damaged or defective items may be exchanged within 30 days.Contact usWe take full responsibility if you receive wrong item or damaged item or item not as describled. If you're not satisfied for any reason, please feel free to contact us.Just send us an eBay message.