The preamp kit includes capacitors, resistors, tube socket and PCB board, input voltage of the mainboard is DC 240V (10% error allowed) and 2 groups of DC 6.3V. The preamp board is 12x15cm and the power supply board is 12x20cm. And the circuit diagram is printed on the back of the PCB board.
Not include the vacuum tubes, please prepare them by yourself. DIY Kit needs you have electronic technology and detection ability to solder all components, we are not responsible for man-made damage. Please leave note for your special request e. Please do NOT leave negative or neutral feedback without any contact. We care about our valued buyers, if you have any questions, our Customer Service staffs will be very glad to help you.This item is in the category "Consumer Electronics\TV, Video & Home Audio\TV, Video & Audio Parts\Amplifier Parts & Components". The seller is "poe-28" and is located in this country: CN. This item can be shipped worldwide.