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Add-on Items
Nobsound & Douk Audio
UK Warehouse
- Add-on Items
- Digital Amplifier
- Tube Amplifier
- Hi-Fi Amplifier
- Preamp & Phono Stage
- Headphone Amplifier
- Audio Adapter / Converter
- Audio Splitter & Switcher
- Audio Processor
- Music Spectrum & Clock
- Audio Board & DIY Kit
- Audio Player & Turntable Parts
- Radio Communication
- Audio Accessories
- Other
EU Warehouse
- Add-on Items
- Digital Amplifier
- Tube Amplifier
- Hi-Fi Amplifier
- Preamp & Phono Stage
- Headphone Amplifier
- Audio Adapter / Converter
- Audio Splitter & Switcher
- Audio Processor
- Music Spectrum & Clock
- Empty Chassis
- Audio Board & DIY Kit
- Record Player & Turntable Part
- Radio Communication
- Audio Accessories
- Other
AU Warehouse
Digital Amplifier
- Multi-Function
- Mono Channel
- 2.0 Channel
- 2.1 Channel
- 4.0 Channel
- 5.1 Channel
Tube Amplifier
- EL34 Tube Amplifier
- KT88 Tube Amplifier
- 300B Tube Amplifier
- Other Tube Amplifier
- Hybrid Amplifier
- Mini Tube Amplifier
- DIY Amplifier Kit
Hi-Fi Amplifier
- Mini Amplifier
- Power Amplifier
- Integrated Amplifier
- Audio Board & DIY Kit
Preamp & Phono Stage
- Tube Preamp
- Phono Preamp
- Digital Preamp
- Passive Preamp
- Audio Board & DIY Kit
Headphone Amplifier
- Mini Headphone Amp
- Portable Headphone Amp
- Tube Headphone Amp
- Desktop Headphone Amp
- Audio Board & DIY Kit
Audio Adapter / Converter
- USB DAC
- Audio Adapter
- Digital Interface
- Bluetooth Receiver/Transmitter
- 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
Music Spectrum & Clock
- Analog VU Meter
- Tube Sound Level Meter
- LED Sound Level Meter
- VFD Audio Spectrum
- Nixie Tube Clock
- VFD Tube Clock
- IPS Nixie Clock
- Oscilloscope Tube Clock
- Board & DIY Kit
- Other
Audio Player
- Digital Player
- CD Player
- Portable Player
Record Player & Turntable Part
- Set-up Transformer
- Record Weight & Clamp
- Platter Mats
- Disc Storage Rack
- Stylus & Headshell
- Gauge Devices
- Cleaning Kit
- Other
Empty Chassis
- Personalized
- Small-sized
- Medium-sized
- Large-sized
Power Supply
- Switching Power Supply
- Linear Power Supply
- Power Supply Filter
- USB Charging Hub
- Board & DIY Kit
Audio Cable
- Speaker Cable
- RCA Audio Cable
- Conversion Cable
- USB Cable
- Coaxial Cable
- Optical Fiber Cable
- HDMI Cable
- Dock Cable
- Other
Hi-Fi Speaker
- Frequency Divider
- Finished Speaker
Valve Tube
- Shuguang Tube
- PSVANE Tube
- Tube Socket
- Other
Transformer
- Toroidal transformer
- Output Transformer
- Choke
- Other
Radio Communication
- Tesla Coil
- FM Transmitter & Receiver
- Antennas & Tuners
- Shortwave Radios
- Parts & Accessories
- Signal Generator
- Other
Module
- Amplifier Module
- Phase-locked Loop Module
- Power Module
- Signal Generator module
- Other Module
Audio Accessories
- Volume Controller
- Mount Stand Bracket
- Feet & Pads
- Op Amp
- Current Meter
- Noise Tester
- Other
Other

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Item description

Introduction

300B Gold Pins: This new production EH 300B Gold Grid offers the same specs of vintage Western Electric 300Bs like wide-shoulder ST shape, 40 watt plate dissipation, and 8-course directly heated filaments it adds a few more upgrades. With an upgraded internal construction using gold-plated grids rather than the traditional nickel, the 300B Gold Grid offers a stabilized, consistent sound. These also have beautiful gold pins which eliminate oxidation and increase performance.

2A3 Gold Pins: Modeled after the original 2A3 type (such as the RCA 2A3 from the 1930s), the Electro-Harmonix 2A3 Gold Grid tubes feature a gold-plated grid as well as a ceramic base.

Packing List

1* Electro-Harmonix 300B Gold Pins/2A3 Gold Pins Vacuum Tube (optional)

If you buy 2PCS of the same model, we will default send you two tubes of high-precision matched pair.

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 Star Star Star Star 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.

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-Friday	09:00 AM - 18:00 AM
New York(US)	Sunday to Thursday	08:00 PM - 05:00 AM
London(UK)	Monday-Friday	01:00 AM - 10:00 AM
Paris(FR)	Monday-Friday	02:00 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.