Other JJ Electronics tubes12AX7 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
Helped tame my Blackstar HT-5RH
My Blackstar HT-5RH went from no gain to distortion with barely a turn of the knob. Not so good for getting that classic rock crunch. So I replaced the stock 12AX7 preamp tube with the JJ 5751 and it made it so I have from a light crunch to heavier crunch in between 7-9 o'clock for more of that classic rock feel while retaining the tone and character of the amp. It may have lost some treble after 12 o'clock, but by that point you still have all the gain you could need.