Kryna Tube Radiator - Extra Large
Fitting for: 6550, KT88, KT66, 845, 300B etc.
Inner Diameter up to approximately 45mm
When KRYNA’s TubeRadiator is wrapped around a vacuum tube, it dissipates the heat accumulated in the tube to the outside. This new type of tube cooler is made of bronze containing phosphorus that is excellent in spring characteristics and strength. The corrugated form adheres to vacuum tube and demonstrates high radiating effect.
By increasing the radiating effect the temperature of the surface of vacuum tube decreases, resulting in less thermal noise and a clearer sound. Lowering the temperature of the vacuum tube's surface also increases the life expectancy of the tube
Test results of measured plate vibration in a tube indicates the effect of controlling low-frequency vibrations related to high-order harmonic and the power supply. Furthermore, bronze containing phosphorus has a characteristic of absorbing electromagnetic wave. Therefore, this tube cooler also plays a role of filtering noise as it prevents the external impact on the tube.
Additional Information and Downloads
Heat Release and Vibration Suppression Effects
Kryna Tube Radiator Manual (PDF)
Download Adobe Acrobat PDF reader
Warranty Information and Return PolicyWarranty 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.