Stereo 300B Vacuum Tube Power Amplifier DIY KIT Improved Audio Amp Board Module
Item History & Price
| Reference Number: Avaluer:7142588 | Type: Power Amplifier |
| MPN: DJ132improved | Brand: Douk Audio |
| UPC: Does not apply |
Add to Favorites Seller Join newsletter Payment Shipping Return Policy About Us Contact Us View All Categories ... Nobsound®——Douk Audio Famouse Brand Amplifier Hi-Fi Tube Amplifier Aluminum Chassis/DIY Enclosure Integrated Amplifier Digital Amplifier Headphone Amplifier Pre-Amplifier DAC / Audio Decoder Guitar Effects Phono Pre-Amplifier Bluetooth Audio Devices Choseal Audio Cable PSU / Power Supply Speaker Protection Board Hi-End Speakers FM Transmitter AV Transmitter and Receiver Rubidium Clock Audio Accessory Consumer Electronics DIY Chassis / Enclosure Auction Other Home Feedback Save Seller New Listed Ending Soon Auction Buy It Now On Sale Store Category Nobsound®——Douk Audio Famouse Brand Amplifier Little Dot FireS Audio APPJ MUZISHARE Xiangsheng Hi-Fi Tube Amplifier EL34 Tube Amplifier 300B Tube Amplifier KT88/KT66 Tube Amplifier 6P3P/6P1 Tube Amplifier Other Tube Amplifier Tube Amplifier Diy Kit Tube amplifier diy kit Tube amplifier board Completed with case Tube Pre-Amplifier Hybird Integrated Amplifier Tube Headphone Amplifier Aluminum Chassis/DIY Enclosure Small-sized Medium-sized Large-sized Personalized Chassis Integrated Amplifier Diy kit (un-soldered) Assembled board(soldered) Completed with case Digital Amplifier Headphone Amplifier Diy kit (un-soldered) Assembled board(soldered) Completed with case Pre-Amplifier Diy kit (un-soldered) Assembled board(soldered) Completed with case(finished) DAC / Audio Decoder Assembled board(soldered) Completed with case Guitar Effects Phono Pre-Amplifier Bluetooth Audio Devices Choseal Audio Cable PSU / Power Supply Diy kit (Un-soldered) Assembled board Toroidal Transformer Other Transformer completed in case Hi-End Transformer Speaker Protection Board Diy kit (Un-soldered) Hi-End Speakers FM Transmitter AV Transmitter and Receiver Wireless AV Senders & IR Smart Wireless AV Senders Audio Video Senders Wireless IR Remote Extender Rubidium Clock Audio Accessory VU meter Consumer Electronics DIY Chassis / Enclosure Auction Other Join Our Newsletter Receive our email newsletters about new items and special promotions! Sign Up Now ! Stereo 300B Vacuum Tube Power Amplifier DIY KIT Improved Audio Amp Board Module Item description Notice: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 20USD).2. If you only want PCB board please contact us, and we have two versions (2mm gold-plated PCB-49 USD) and (2mm slicker solder PCB-39 USD) for you to choose. 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 use. And if you want complete kit including chassis + transformer + improved diy kit please click: LINK4. This is improved vesion, if you want standard version please click: LINK and difference between them are below:Standard Version KIT
Improved version KIT
ALPS 16 type potentiometerALPS 27 type potentiometerCommon socketGold-plated in-line socketPhilips 400v220ufPhilips 400v220uf
Philips line electrolytic 100v 100ufRIFA new axial electrolytic 100v100ufPhilips 16v8200uf disassembleThe new Nikon 16v 8200ufPhilips 400v33uf disassembleThe new Philips 400v33ufCathode resistor 1kCathode resistor 1k 50w aluminum shell51R balance resistance3w 100ohm balanced locking potentiometerWima couplingGerman M-cap Mundorf2w mf Taiwan metal film resistors2w mf Taiwan metal film resistorsAnd many other elementsAnd many other elementsslicker solder PCBgold plated PCB119.99 USD (including postage)179.99 USD (including postage)Features:1. Reasonable layout circuit to reproduce classic style of 300B tube amplifier.2. 2.0mm thick high quality immersion gold / slicker 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 connect speakers to boot, load will burn. 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.PaymentDelivery detailsReturn PolicyAbou 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 Days
We 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. Feedback Save Seller New Style Ending Soon Auction Buy It Now On Sale 1. Reasonable layout circuit to reproduce classic style of 300B tube amplifier.2. 2.0mm thick high quality immersion gold / slicker 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.
Improved version KIT
ALPS 16 type potentiometerALPS 27 type potentiometerCommon socketGold-plated in-line socketPhilips 400v220ufPhilips 400v220uf
Philips line electrolytic 100v 100ufRIFA new axial electrolytic 100v100ufPhilips 16v8200uf disassembleThe new Nikon 16v 8200ufPhilips 400v33uf disassembleThe new Philips 400v33ufCathode resistor 1kCathode resistor 1k 50w aluminum shell51R balance resistance3w 100ohm balanced locking potentiometerWima couplingGerman M-cap Mundorf2w mf Taiwan metal film resistors2w mf Taiwan metal film resistorsAnd many other elementsAnd many other elementsslicker solder PCBgold plated PCB119.99 USD (including postage)179.99 USD (including postage)Features:1. Reasonable layout circuit to reproduce classic style of 300B tube amplifier.2. 2.0mm thick high quality immersion gold / slicker 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 connect speakers to boot, load will burn. 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.PaymentDelivery detailsReturn PolicyAbou 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 Days
We 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. Feedback Save Seller New Style Ending Soon Auction Buy It Now On Sale 1. Reasonable layout circuit to reproduce classic style of 300B tube amplifier.2. 2.0mm thick high quality immersion gold / slicker 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.
