Winged "C" 6H13C / 6AS7G Power Vacuum Tube
Production of the SED Winged “C” tubes has come to an end. We have purchased as much stock as available from them that was not factory seconds. We were offered factory seconds at a lower cost however we declined. We do know these factory seconds have entered the marketplace.
Stock is limited and our price has been raised to reflect the higher purchase cost of this final product. SED Winged "C" vacuum tubes should now be considered NOS (New Old Stock).
The 6AS7G vacuum tube is best known for being the tube used in Atma-Sphere OTL Tube amplifiers. The Music Amplifier MA-3 uses 42 6AS7 tubes per channel!
The 6AS7-G power tube is also a nice choice for many OTL headphone amps such as the Woo Audio 2, 3, and 22 models, and Darkvoice 336SE amps.
View the 6H13C tube data sheet.
Other SED Winged "C" tubes 
6AS7 Tube TypesAdditional Information and Downloads
Downloads:
Winged "C" 6H13C / 6AS7G Datasheet (PDF)
Download Adobe Acrobat PDF reader
Warranty Information and Return Policy
Warranty Period: 3 monthsAll 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.
Ratings & Reviews
14 reviews
Great for Darkvoice
by Christopher
Re-tubed my Darkvoice 336SE with this as the main amplifying tube, pretty surprised with the result.
Noticeable improvement in clarity and noise floor. Great tube to upgrade from the stock one.
winged 6H13C
by Chris
Put into my head phone amp. Great tube, solid built. Nice smooth sound on the headphones. Can also be used as preamp stage for main amps. Works together with a pair of NOS General Electric 5670W good combo.
Fantastic Service
by Ross
I also retubed my M-60s with these and they are perfect performers....more important was the service provided by Jon and the team....in a word, fantastic. Thanks for all your help and lightning fast delivery.
Sounds Fantastic!
by Rob
Retubed my Atma-Sphere amp with these and my amp sounds better than ever