KT77 Valve Matched Pair – JJ TESTED NEW (2 x KT77)

2 x JJ KT77 Matched Valves


In Stock

481 in stock

All single valves, matched pairs and matched quads are fully tested in our warehouse before dispatch. These valves will guarantee awesome tone and amazing power. You WILL hear the difference. So get your amp sounding better than ever. Order your replacement valves today.


Buying a Matched Pair of KT77 Valves.

Looking to buy a matched pair of KT77 valves? Great – you’ve found the best.

We sell the awesome JJ KT77. JJ is one of only five valve manufacturers in the world. So don’t pay more for rebranded versions of exactly the same valve in a different box.

  • All of our valves are carefully chosen, fully tested and digitally matched before we ship to you.
  • These Selected Premium Grade JJ valves deliver superior tone, power and performance.
  • We offer a range of fast delivery options with full tracking and insurance.
  • 30 years in the business so order with confidence.
  • Global shipping – we ship all over the world.

Why Use a Matched Pair of KT77 Valves?

In a guitar amplifier with two output valves, one valve is “pushing” the speaker cone while one is “pulling” it. So, in an amp with four output valves, the same applies but the amp has twice the power.

With the same signal applied to each valve, it’s important that each valve gives an identical amount of push or pull. If this was not the case, sound fidelity and tone would be lost.

So you MUST replace both output tubes at the same time. At AmpValves we carefully select, test and digitally match all stock before we ship to you.

A matched pair of KT77 means each valve gives the same bias current under identical conditions of plate voltage and grid bias voltage. Please note that valves (same make, same type) can differ wildly in their characteristics. So this is why matching is so important.

Matched Pair of JJ KT77 valves/Tubes.

The KT77 valve is a much sought after guitar amplifier valve. Highly regarded by guitarists around the world. You can buy a new and tested matched pair of KT77 valves from us. So we recommend that a set of matched valves are always used. This will ensure the best possible tone and power from your amplifier.

Which guitar amplifiers do the KT77 valves fit?

These superb amplifier valves fit many different guitar amplifiers produced by a variety of different manufacturers. KT77 valves have a very specific sound so please check the exact valves you need for your amplifier by clicking here.

Additional information

Weight0.35 kg
Dimensions26 × 21 × 17 cm


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2 x JJ KT77 Matched Valves

KT77 Valve Matched Pair – JJ TESTED NEW (2 x KT77)


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