Mullard KT88 Power Vacuum Tube (Matched)

1 Review

Availability: Usually ships within 24 hours.

USD $‎77.95

Need matched power tubes? Don't worry! Price includes matching in any quantity you need for no extra charge. Need a matched pair? Just order "2" tubes. For a matched quad order "4" tubes. Matched sextets and octets are available as well.

Introducing the new Mullard KT88 vacuum tube. The KT88 power tube construction consists of triple getters, additional support posts, and cooling "fins" along the anode.

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 Policy

Warranty 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

1 review

  • 4 stars
  • 0 reviews
  • 3 stars
  • 0 reviews
  • 2 stars
  • 0 reviews
  • 1 star
  • 0 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.