GENALEX GOLD LION KT88 Platinium Tetrode Tubes (Matched Quad)

This Genalex Gold Lion KT88 tube is a tetrode with equipotential cathode and is mainly designed to amplify low frequencies at an output stage. It has gold plated grids. It is an excellent equivalent to the 6550 tube.
Average votes for this product
5.0 / 5

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Reference : 15683
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Shipping date: 06-06-2025.

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3 >Month warranty
 
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Genalex Gold Lion KT88

Tubes Tetrodes (Matched Quad)

Genalex Gold Lion KT88 Tubes Tetrodes (Set x4 appairés)

This Genalex Gold Lion KT88 tube is a tetrode with equipotential cathode and is mainly designed to amplify low frequencies at an output stage. It has gold plated grids. It is an excellent equivalent to the 6550 tube.

Genalex Gold Lion KT88 Tubes Tetrodes (Set x4 appairés)
1External metal screen
2Heater
3Plate
4Grid 2
5Grid 1
6NC
7Cathode
Genalex Gold Lion KT88 Tubes Tetrodes (Set x4 appairés)
Specifications
Product typeTetrode tubnes
Number of pins7
ApplicationLow frequency amplification in output stage
QuantityFour matched tubes
Measurements
ParameterConditionsMin.Max
First grid reverse currentFilament voltage 6.3V, plate voltage 400V, grid 1 voltage16.5V, grid 225V, resistance circuit grid 1 0.051MΩ-0.7µA
Heater current-1.5A1.7A
Plate currentFilament voltage 6.3V, plate voltage 400V, grid 1 voltage 16.5V, grid 2 voltage 225V75mA125mA
Grid 2 currentFilament voltage 6.3V, plate voltage 400V, grid 1 voltage 16.5V, grid 2 voltage 225V2mA9.5mA
Output powerFilament voltage 6.3V, plate voltage 400V, grid 1 voltage 16.5V, grid 2 voltage 225V, plate circuit resistance 3kΩ14W-
First grid cut-off voltage, negativeFilament voltage 6.3V, plate voltage 400V, grid 1 voltage 16.5V, grid 2 voltage 225V-58V
DistortionFilament voltage 6.3V, plate voltage 400V, grid 1 voltage 16.5V, grid 2 voltage 225V-18%
 
Data sheet
Contacts number7
Tube typeTetrode
 
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Average votes
5.0 / 5
10 reviews
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 5/5
Date :
Genalex
I let the tubes burn in for about 100 hours and they work great for me, the bass is dense, the mids are brilliant, the treble is excellent, clean. It's hard to find a better one. I have a Cayin CS 88 A amplifier, I also replaced the tubes in the preamp with Tung-Sol, which Audiophonics also offers, specifically Tung-Sol 6SN7GT and Tung-Sol 6SL7GT. Great combination for this amplifier. Thanks Audiophonics for the fast delivery, very well packaged :)
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This review has been posted for GENALEX GOLD LION KT88 Platinium Tetrode Tubes (Matched Quad)
Note :
 5/5
Date :
Genalex Gold LION KT88
The Genalex gold lion KT88 tubes arrived very well packaged, after installing them in the amplifier, there was a noticeable difference in sound, I'm looking forward to burning the tubes and the sound will be even better. I bought them together with Tung-sol 6SN7GT and 6SL7GT for the Cayin CS 88 A amplifier. The whole combination is exceptional in sound, the sound is very dynamic, yet velvety soft, beautifully perceptible with all the details. Thanks to Audiophonics for the fast delivery of the package.
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This review has been posted for GENALEX GOLD LION KT88 Platinium Tetrode Tubes (Matched Quad)
Note :
 5/5
Date :
très bon quad
commandé en remplacement d'un quad GEC NOS sur un Luxman A3600 pour les laisser au repos, j'ai été très agréablement surpris du fonctionnement de ces KT88 qui n'ont rien à envier aux GEC, toutes les fréquences sont détaillées, les basses précises, un vrai bonheur
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This review has been posted for GENALEX GOLD LION KT88 Platinium Tetrode Tubes (Matched Quad)
Note :
 5/5
Date :
Parfait
Merci à audiophonics pour les conseils sur le choix des tubes.
A tout possesseur d'ampli pier audio ms88se, je vous conseille le changement des tubes sans attendre qu'ils soient à changer c'est vraiment un nouvel ampli dans cette configuration.
Très content du résultat.
 (1)
 (0)
This review has been posted for GENALEX GOLD LION KT88 Platinium Tetrode Tubes (Matched Quad)
Note :
 5/5
Date :
todo el proceso impecable
Rapidísimo, muy bien embalado y buen precio, buen trabajo, gracias.
 (1)
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This review has been posted for GENALEX GOLD LION KT88 Platinium Tetrode Tubes (Matched Quad)
 
GENALEX GOLD LION KT88 Platinium Tetrode Tubes (Matched Quad)
This Genalex Gold Lion KT88 tube is a tetrode with equipotential cathode and is mainly designed to amplify low frequencies at an output stage. It...

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