Other JJ Electronics tubes6550 Tube Types
Additional Information and Downloads
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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.
Ratings & Reviews
We'll balance and loud.
These brought my Marshall Mk II 50 watt Lead back to life! I tried EL34 tubes for about 10 years but they always sounded congested. Not anymore! My tube spring retainers even fit again.I did modify the preamp to Atomic Soldano specs before the switch. But now the tone controls are so responsive that I can go from clean to crunch with just the twist of my guitar volume. Not possible with EL34's. These are damn impressive sounding for the $.