YJ20 Yellow Jacket (6V6 Only)
The "YJ20" model of Yellow Jacket does not reduce the amp's power, it only switches it to Class A. The YJ20 will only replace 6V6 types without modification or rebiasing. These should not be used in amps designed for EL34, 6L6, 6550, or KT88 tubes. Instead, use the YJS version for these amps.
Note: The EL84 tubes are not included. Visit our EL84 / 6BQ5 Tube Types page for our full EL84 tube selection.
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.