General Electric Cryo / 5840/EF732-GENERAL ELECTRIC

5840/EF732-GENERAL ELECTRIC 5840/EF732-GENERAL ELECTRIC Click on image(s) above to view larger

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Watford Valves has cryogenically treated some of the more popular and best sounding General Electric valves. This process makes a permanent change and the benefits do not deteriorate over time or upon return to operating temperature, it changes the whole way the vacuum tube performs. The biggest benefits I have found has been a dramatic improvement in dynamic range. Bass response has been clearer with reduction in microphonics. The soundstage is bigger with more detail with a big reduction in the noise floor. The really most starling fact has been how the valve operates under saturated and overdriven conditions in guitar amplifiers. The distortion is smoother with less hardness and is musically pleasing to the ear.
General Electric 5840 Original USA made which is a special quality version of the EF732 pentode. These high-quality sub-miniature pentode are well known for their extremely low noise and low microphonics and are used in valve microphones.

The 5840 valve is currently used in Telefunkens current production models of the AK-47mkII and ELA M 260

5840 is electrically similar to the AC701K which was used in such microphones as the Neumann M-49. They have very low noise and produce a very refined sound, hence why many manufactures are now using this valve.

Our stock comes in Government white box and some in original box.

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