Original design 6N8P/12AU7 / 6N1/ 6N11 Multi-Purpose Tube Bile Preamplifier



Classic single-tube amplification connection, as long as the attention of the component value and supply voltage, many bile ducts can play.

Such as 6N1, 6N2, 6N4, 6N10, 6N11, 6DJ8, 6922, ECC88, E88CC, 6N8P, 6SN7, 6N9P, 6SL7, 12AX7, 12AU7, 12AT7 and so on.

Our finished board is applicable to the value of 12AU7, applied to other tubes please change the component value yourself.


PCB is a high specification 2mm thick double-sided gold-plated PCB with pins, a set of 3 boards.

Finished board without tubes is installed and commissioned finished product (excluding the bile ducts, need to be purchased separately).

PCB size of about 150x103mm, in order to facilitate your installation and commissioning, with the board comes with circuit diagrams and component list.



Purchase board need to know:

① for the use of your hands have bile ducts, finished products and does not come with electronic tubes, you can choose 12AU7 or ECC82 or 6189, AU7 family of tubes can be used, pay attention to the filament voltage can be.

② coupling capacitors on the capacity requirements are not strict, you can also use the hands of the replacement test tuning, 1-5uF can be.

③ finished board we use genuine ALPS27 potentiometer, rather than the fake so-called resistance step type.


This is a multi-purpose design, you can also be used as an experimental platform to be able to test audition commonly used 8-pin or 9-pin dual triode.



This board power supply screen pole high voltage +280V, filament low voltage as noted in the different bile ducts with 6.3 or 12.6V

Recommended power boards:

https://www.ebay.com/itm/116198318565


Package：

1pc Original design 6N8P/12AU7 / 6N1/ 6N11 Multi-Purpose Tube Bile Preamplifier

 
Payment Method: PayPal preferred

Shippment:
1.We provide free shipping to international via China Post Airmail or Hong Kong Post Airmail, and every parcel will be registered with tracking number. We can also ship by UPS/EMS/DHL/FedEx for alternative shipping method for corresponding fees. Please let Us know before payment if you need split shipment.
2. International shipping requires complicated shipping procedures (such as both countries customs, transit stations etc.), also will be affected by many factors, such as holidays, weather conditions etc, If you have not received your shipment within 30 days from payment, Please contact us.
3.Time of Delivery:Based on the China Post Airmail or Hong Kong Post Airmail and our experience, kindly please be that that To United States / United Kingdom / Australia, it takes around 10-15 business days; To Canada, it takes around 12-18 business days; To Brazil / South America, it takes around 25-35 business days. To Italy / France / Spain / Germany/ Eastern Europe, it takes aournd 15-20 business days.

Returns & Replacements & Repair:
We accept returns & replacements within 30 days from the day the customer receive the products, please make first contact within 30 days from receiving the order. Products should be returned in original condition. As a benefit to our customers, we also provide repair within 3 Months from the day when this item is shipped out, after repair is done, we will send you the item, but the customer should pay both shipping ways.

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