From the manufacturer: "This is an exact copy of the KT88 valves that were manufactured by Marconi-Osram for Marshall in the late 1960s and 1970s. Excellent replacement output valve for the Marshall Major to retain the original sound."
Other Mullard tubesKT88 Tube Types
Additional Information and Downloads
Tube Matching Information:
Power Tube Matching FAQ
Perfect Pair System
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
The incredible soundstage for the price.
I have these tube from very long time, I own a JD801a and it’s sonic sound is incredible, the mids and bass... I have a 12axt fane JJecc803, and the 6sn7 are the brown base, the cable speaker are the bedrock, and I own Paradigm 9se mkt 3. I must admit I beat a lot of much more expensive sound systems.... feel confident to buy them.