Reasonable layout circuit to reproduce classic style of 300B tube amplifier. 2.0mm thick high quality immersion gold solder blue printed circuit board (185.4 286.2mm).
Ultra-low noise layout traces, almost no noise. High thermal design to ensure stable operation for a long time even if in a closed chassis. Record Player & Turntable Part.
Audio Board & DIY Kit. Bluetooth & XLR & MIC. 1/8 & 1/4 Stereo Jack Cable. Stereo 300B Vacuum Tube Power Amplifier DIY KIT HiFi Audio Amp PCB Board Module.Notice: because of different batches, some components of DIY kit may be replaced by other equal-grade brands but the quality is absolutely the same, don't worry. Not including tubes and copper pillar.
And the difference between them are below. Philips line electrolytic 100v 100uf.RIFA new axial electrolytic 100v100uf. The new Nikon 16v 8200uf. Cathode resistor 1k 50w aluminum shell. 3w 100ohm balanced locking potentiometer.
2w mf Taiwan metal film resistors. Multi-component package designed to meet the requirements of the user change different size components. Screw and hole location are beautiful reasonable, easy for diy chassis hole. We will sent the 1:1 hole size chart for free. Each test point voltage has been marked, Easy to debug.
(Good welding is ok, generally don't have to debug). DC voltage accurate 5.0v filament supply, more tube rectifier ensures 300B life. The tube amp design can take screen flow meter and VU meter. The output transformer must firstly connect speakers and then to turn it on, otherwise it will be damaged because of no-load. Electrolytic capacitors, diodes, rectifier bridge, voltage regulator chips soldered to note the direction (ref Pictures).
300b tube seat the Coarse foot at the front when welding (1 4 feet coarse). Big Eight feet tube holder also pay attention to the direct. Input voltage to the terminal connection must be strictly in accordance with the picture, can not be wrong.Filament balancing use 51R resistor or 100R potentiometer adjustment, choose one way. Not two kinds are connected. Power transformer 230v, 14v (vu meter use) three lines do not connect!
Please leave VALID TELEPHONE NUMBER which is necessary and very important. For package less than 2KG, we use. (10-25 days to most countries).
And for package over than 2KG we use. (5-8 days to most countries). Free Return Within 30 Days. We provide return within 30 days.Is provided for all items. Audio accessories and consumables such as vacuum tubes. If you are satisfied with our products and service please leave a 5-star. Feedback, we will provide better solutions until you are satisfied. Douk Audio / Nobsound Studio was founded in 2013 in Shenzhen CHINA, we own several brands including.
Douk Audio / Nobsound / Little Bear. As a professional audio company, we are dedicated to design and produce the best products at the lowest prices to make HiFi affordable. We will spare no efforts to bring great products and service for.Improve our customers' listening experience. During holiday, please allow us to response you early next week. Please don't leave any negative / neutral feedback or make dispute/claim on our non-working time, thank you for your understanding and cooperation. This item is in the category "Consumer Electronics\TV, Video & Home Audio\TV, Video & Audio Parts\Amplifier Parts & Components". The seller is "doukmall" and is located in this country: CN.
This item can be shipped worldwide.