Shuguang 300BC / Solid Graphite Plate
The Shuguang 300BC tube has a unique solid high-purity graphite anode not seen in any other 300B. The grid wires are gold-plated and it sports a ceramic base with gold pins.
Be sure to read the great 300B tube review and comparison from the Wall of Sound.
Other Shuguang tubes300B Tube Types
Additional Information and Downloads
300B Tube Reviews
Warranty Information and Return PolicyWarranty Period: 3 months
All our tubes are guaranteed for 3 months from the date of purchase. (Any exceptions will be noted on that tube's Warranty tab)
If you receive a tube that does not perform to the manufacturer's specifications, please do the following:
- contact us to get a return authorization
- return it via regular mail within 90 days from when we shipped it, and we will provide an exchange or refund of the full purchase price of the tube.
Returns not related to warranty or defect will be considered at our discretion, and are subject to a 15% restocking fee.
We can not accept returns that don't have an authorization, are past 3 month, or are returned improperly.
These guidelines may be updated without notice.