$189.99 Buy It Now or Best Offer
free,30-Day Returns
Seller Store doukmall
(57934) 99.4%,
Location: shenzhen
Ships to: US,
Item: 275293532375
Restocking Fee:No
Return shipping will be paid by:Buyer
All returns accepted:Returns Accepted
Item must be returned within:30 Days
Refund will be given as:Money Back
Type:Tube Amplifier
Douk Audio:Douk Audio
MPN:DJ132
1. Reasonable layout circuit to reproduce classic style of 300B tube amplifier. 2. 2.0mm thick high quality immersion gold solder blue printed circuit board (185.4 * 286.2mm). 3. 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. Add to Favorites Seller Join newsletter New Arrival Ending Soon View Feedback About Us Contact Us View All Categories Nobsound & Douk Audio Add-on Items US Warehouse UK Warehouse DE Warehouse AU Warehouse Digital Amplifier Tube Amplifier Audio Amplifier Preamp & Phono Stage Headphone Amplifier DAC & Audio Adapter Audio Splitter/Switcher Audio Processor Audio Player Music Spectrum & Clock Empty Chassis Record Player & Turntable Part Power Supply Vacuum Tubes Hi-Fi Speakers Hi-Fi Cable Transformer Radio Communication Audio Accessories Other Home Feedback Save Seller New Listed Ending Soon Contact us Store Category Nobsound & Douk Audio Add-on Items US Warehouse Add-on Items Amplifier Preamp & Phono Stage Headphone Amplifier DAC & Audio Adapter Audio Splitter/Switcher Music Spectrum & Clock Audio Accessories Other UK Warehouse Add-on Items Digital Amplifier Tube Amplifier Hi-Fi Amplifier Preamp & Phono Stage Headphone Amplifier DAC & Audio Adapter Audio Splitter/Switcher Audio Processor Music Spectrum & Clock Record Player & Turntable Part Audio Board & DIY Kit Audio Accessories Other DE Warehouse Add-on Items Digital Amplifier Tube Amplifier Hi-Fi Amplifier Preamp & Phono Stage Headphone Amplifier DAC & Audio Adapter Audio Splitter/Switcher Audio Processor Music Spectrum & Clock Aluminum Chassis Record Player & Turntable Part Audio Board & DIY Kit Radio Communication Audio Accessories Other AU Warehouse Add-on Items Amplifier Preamp & Phono Stage Headphone Amplifier DAC & Audio Adapter Audio Splitter/Switcher Music Spectrum & Clock Audio Accessories Other Digital Amplifier Multi-Function Mono Channel 2.0 Channel 2.1 Channel 4.0 Channel 5.1 Channel Tube Amplifier DIY Kit Hybrid Amplifier Mini Tube Amplifier EL34 Tube Amplifier KT88 Tube Amplifier 300B Tube Amplifier Other Tube Amplifier Audio Amplifier Mini Amplifier Integrated Amplifier Power Amplifier Audio Board & DIY Kit Preamp & Phono Stage Tube Preamp Digital Preamp Phono Preamp Passive Preamp Audio Board & DIY Kit Headphone Amplifier Mini Headphone Amp Desktop Headphone Amp Portable Headphone Amp Tube Headphone Amp DAC & Audio Adapter Audio Adapter USB DAC Bluetooth Receiver/Transmitter Digital Interface Audio Board & DIY Kit Audio Splitter/Switcher Speaker Switcher Bluetooth & XLR & MIC 2 Way 3 Way 4 Way Multiple Way Audio Processor Guitar Effects Equalizer Audio Mixer Noise Isolator Audio Player Digital Player Record Player CD Player Portable Player Music Spectrum & Clock Analog VU Meter Tube Sound Level Meter LED Sound Level Meter VFD Audio Spectrum LED Clock Nixie Tube Clock VFD Tube Clock IPS Nixie Clock Oscilloscope Tube Clock Board & DIY Kit Other Empty Chassis Small-sized Medium-sized Large-sized Personalized Record Player & Turntable Part Set-up Transformer Record Weight & Clamp Cleaning Kit Scale Gauge Platter Mat Dust Cover Needle Other Power Supply Linear Power Supply Switching Power Supply Power Supply Filter USB Charging Hub Board & DIY Kit Vacuum Tubes Shuguang Tube PSVANE Tube Tube Socket Tube Tester Probe Hi-Fi Speakers Frequency Divider Speaker Unit Hi-Fi Cable RCA Audio Cable 1/8 & 1/4 Stereo Jack Cable Speaker Cable USB Cable Optical Fiber Cable Conversion Cable Dock Cable Other Transformer Toroidal transformer Output Transformer Other Radio Communication Tesla Coil Transmitter & Receiver Signal Generator Antennas & Tuners Shortwave Radios Ham Amateur Radio Audio Accessories Volume Controller Mount Stand Bracket Feet & Pads Op Amp Headphone Current Meter Other Other Join Our Newsletter Receive our email newsletters about new items and special promotions! Sign Up Now ! 300B Vacuum Tube Amplifier PCB Board Class A Stereo Audio Power Amp DIY KIT 7W*2 Item description 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. Warm tips: 1. Not including tubes and copper pillar. And this is DIY KIT which needs you to solder, if you want assembled board please contact us (adding 30USD). 2. If you only want PCB board please contact us. 3. If you want matched 300B power transformer ( Z11 EI 105*60mm ) and 300B inductors (Z11 EI 76*40mm), 300B/4300B, 6SN7/6N8P and 5U4Z/5Z3P tubes please contact us. And if you want complete kit including chassis + transformer + improved diy kit please click: LINK 4. This is standard vesion, if you want improved version please click: LINK and the difference between them are below: Standard Version KIT Improved version KIT ALPS 16 type potentiometer ALPS 27 type potentiometer Common socket Gold-plated in-line socket Philips 400v220uf Philips 400v220uf Philips line electrolytic 100v 100uf RIFA new axial electrolytic 100v100uf Philips 16v8200uf disassemble The new Nikon 16v 8200uf Philips 400v33uf disassemble The new Philips 400v33uf Cathode resistor 1k Cathode resistor 1k 50w aluminum shell 51R balance resistance 3w 100ohm balanced locking potentiometer Wima coupling German M-cap Mundorf 2w mf Taiwan metal film resistors 2w mf Taiwan metal film resistors And many other elements And many other elements Features: 1. Reasonable layout circuit to reproduce classic style of 300B tube amplifier. 2. 2.0mm thick high quality immersion gold solder blue printed circuit board (185.4 * 286.2mm). 3. 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. 4. Multi-component package designed to meet the requirements of the user change different size components. 5. Screw and hole location are beautiful reasonable, easy for diy chassis hole.We will sent the 1:1 hole size chart for free. 6. Each test point voltage has been marked, Easy to debug. (Good welding is ok, generally don’t have to debug) 7. DC voltage accurate 5.0v filament supply, more tube rectifier ensures 300B life. 8. The tube amp design can take screen flow meter and VU meter. Warm Tips: 1. The output transformer must firstly connect speakers and then to turn it on, otherwise it will be damaged because of no-load. 2. Electrolytic capacitors, diodes, rectifier bridge, voltage regulator chips soldered to note the direction (ref Pictures). Incorrect polarity will explode! 3. 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. 4. Input voltage to the terminal connection must be strictly in accordance with the picture, can not be wrong. 5. Filament balancing use 51R resistor or 100R potentiometer adjustment, choose one way. Not two kinds are connected. 6. Power transformer 230v, 14v (vu meter use) three lines do not connect! The output transformer superlinear insulation tap G also don’t pick up. Payment Delivery details Return Policy About us Contact us Payment Safe and secure payment by PayPal. Delivery details Please leave VALID TELEPHONE NUMBER which is necessary and very important. Customs Clearance We are NOT responsible for any customs duties fee. We are NOT responsible for any import tax or customs delay. Most item will be shipped within 2 working days. For package less than 2KG, we use Airmail (10-25 days to most countries) and for package over than 2KG we use Expedited Service such as DHL, UPS and FEDEX (5-8 days to most countries). Return Policy Free Return Within 30 DaysWe provide return within 30 days for all items you bought on eBay, full refund and return shipping will be provided. 1-year warranty is provided for all items(Excluding: 1. Man-made damage or misuse. 2. Audio accessories and consumables such as vacuum tubes). If you are satisfied with our products and service please leave a 5-star . Feedback is very important to us just like our lives, please DO contact us before you leave a neutral or negative feedback, we will provide better solutions until you are satisfied. About us Douk Audio / Nobsound Studio was founded in 2013 in Shenzhen CHINA, we own several brands including Douk Audio / Nobsound / Little Bear etc. 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 customers and extremely to improve our customers listening experience. Contact us Please don’t hesitate to contact us if you have any questions or comments about our items. And our working time is from Monday to Friday between 9:00 am to 06:00 pm(Beijing Time), which means we can keep on-line at: Working time Beijing(CN)Monday-Friday09:00 AM – 18:00 AMNew York(US)Sunday to Thursday08:00 PM – 05:00 AMLondon(UK)Monday-Friday01:00 AM – 10:00 AMParis(FR)Monday-Friday02:00 AM – 11:00 AM 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. Home Feedback Save Seller New Listed Ending Soon Contact us
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