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JJ Tesla Cryo / ECC83/ECC83S-JJ TESLA CRYO
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All prices contained on this page are exclusive of VAT. This is currently charged at 20% and is payable by the UK only.
All prices contained on this page are exclusive of VAT. This is currently charged at 20% and is payable by the UK only.
Watford Valves has cryogenically treated some of the more popular and best sounding JJ electronic formally known as Tesla 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 have 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.
This specially treated cryogenic version of the JJ ECC83S. The Cryo treatment gives better clarity, improved sonics and more detail than a non-treated valve. These are the best choice for high end applications and guitar pre amp sections.The JJ ECC83S copies the anode construction of the frame grid design based on the old Telefunken ECC803S. The valve is not a frame grid valve but the valve is very well internally braced which makes it very low in microphonics. The sound of these valves is very warm and clean making these the ideal choice for Fender amplifiers and also for use in audio applications.
We offer three options:
1) WV Selected & tested
2) Balanced matched triode sections for Phase splitter, Audio & Tube microphones
3) High Gain-For early Breakup
All Balanced & High Gain preamp valves are Dynamically Drive tested under real working condition have passed the following tests:
Gain (db) Drive Tested
Transconductance (gm) Drive Tested
Output Drive Tested
Noise 1 (signal to noise)
Noise 2 (Aural)
Microphonics Test 1(Ambient)
Microphonic Test 2 (Shock)
Cathode Test
Grid Leakage Test
If you want a matched pair then by ordering 2 of the balanced valves you will get a matched pair
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