Sovtek KT88

2 Reviews
USD $‎38.95
Note: This tube has been discontinued by the manufacturer. We only have one tube left in stock!

From our KT88 tube type listening tests:

"The Sovtek KT88 tube has smooth, warm and clear with excellent imaging. The bass (except for the very bottom end) is tight and the high end is crystal clear. The separation of parts and balance is better than any of the 6550 tube types."

Other Sovtek tubesKT88 Tube Types

Additional Information and Downloads

Tube Matching Information:

Power Tube Matching FAQ

Perfect Pair System


Sovtek KT88 Datasheet (PDF)

Download Adobe Acrobat PDF reader

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

2 reviews

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

KT88 Single Ended Amp


Used the Sovtek in a custom built KT88 SE amplifier. Been quite pleased running these tubes slightly North of their typical operation point. Sound quality was very good from the mid to "extreme" highs. Let's just say Jimmy Hendrix would be please.

The right choice


If you're looking for a budget kt88, you can't listen to this incredible Russian beam tetrode! It's the best power valve at this price, without any doubt. Excellent manufacture, very good sound and great reliability makes this tube an outstanding sound companion!