JJ 6550 KT88 Matched Pair

These JJ 6550 KT88 Matched Pair beam pentodes  in push pull can easily provide 100 watts of audio power and they come with a test certificate showing the supermatching parameters. This ensures the best performance and sound quality.


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Product Description

The JJ 6550 KT88 Matched Pair are factory matched and further tested and refined matching by us. Check out our Supermatch technology. Product is manufactured by JJ Electronic in the Slovak Republic.

We issue a test certificate with each set .

Click here for the product data sheet

This is one big bottle packing a lot of output power !! These beam pentodes can handle 42 watts in single ended pentode mode applications or a 100 watts in push pull mode.

As these are high power valves it is strongly recommended that the bias is checked when inserting in your amp.The valve life can be severely reduced if the bias is not set correctly.

We also offer a 120 day from purchase warranty on the product ( excludes user caused mechanical damage failure and incorrectly set bias ).


Note: Valves use high voltages and these voltages are dangerous. The amp can still retain these high voltages for some time even after being switched off.  If you are not sure of fitting them , please seek the services of qualified personnel

Additional Information

Weight0.1 kg



JJ Electronics

Customer Reviews

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"Arrived next day, exactly as described with testing certificate included. Great service, thanks!" - SG. 5th Dec 2019

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"Excellent service. Stewart has a genuine interest in his customers which really adds a personal touch to the overall experience. Highly recommended and will be back future purchases. Thank you.."- A.C. 2nd December, 2019

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