109 In stock
Finished PCBA Amplifier Board
IWISTAO 6N4 Vacuum Tube Preamplifier Finished Board Maratz 7 Circuit 12AX7
Model No: WVA-PABM7
This is a pure tube preamplifier finished board that refers to Maratz 7 circuit, and adopts tube 6z4 as rectification, and 6N4 as preamplifier that is replaced by tube 12AX7.
2. Advanced Version
1. Using original 6N4 tube (be replaced by tube 12AX7 )
2. The electrolytic capacitor adopts imported chemical and BC electrolysis, the coupling capacitor adopts Philips 1UF, and the output adopts Siemens 1UF to ensure strong and continuous power support.
3. The resistor uses a four-ring 1W metal film resistor to ensure a good signal-to-noise ratio.
4. First-class PCB quality. The PCB adopts 1.6mm thick double-sided sheet, 2.0 oz copper thickness, and the whole process of tin-spraying ensures the good passing performance of the current.
5. Use 7 color flashing LED indicators, the effect is better at night!
1. PCB size: 170mm*85mm
2. Supply voltage: AC6.5V (15W); AC150V-0-AC150V (10W)
- Standard version: within tube 6Z4 x1 (no including 3pcs 6N4)
- Advanced version: within full tube (3pcs 6N4, and 1pc 6Z4)
Note: we provide you some items and components for your DIY. If you have enough capablities for circuit-reading, electronical components knowledge, assembling, soldering and problem-solving, you can buy them to enjoy DIY. If not, please don't buy them. We only provide limit technology support in this individial items itself.
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You may return most new, unopened items within 7 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
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1. One year Manufacturer`s limited Warranty for defective items (excluding items damaged and/or misused after receipt). Accessories come with a 3-month warranty.2. Defective items MUST BE reported and returned within the warranty period (with the original packaging, if possible). You must tell us what the defect is and give us your order number. WE DO NOT REPAIR OR REPLACE ITEMS WITH AN EXPIRED WARRANTY. You agree to all of the above-listed policies upon ordering on our store.