Tesla / EF86-TESLA

EF86-TESLA EF86-TESLA Click on image(s) above to view larger

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Tesla started production in 1922 under its original name of Radioslavia Ltd in Czechoslovakia. It has a long history of manufacturing high quality transmitting valves and defense equipment. The Tesla factory was known for making some outstanding valves. The Original EL34 better in terms of microphonics and reliability than the famous Mullard EL34, hence Marshall used the Tesla EL34 from the mid 1970’s onwards. The frame grid E83CC was due to its construction the most expensive of it type to produce. Still to this day it is one of the best sounding ECC83/12AX7 types ever made. These are just a few of an endless list of pioneering valves produced by this great Czechoslovakian factory that sadly is no longer with us.
The Original TESLA factory produced one of the best sounding NOS EF86 that made in Czechoslovakia.

This valve has a light grey round anode construction with mica spaces that support the anode and structure in the glass.

These not only work well in guitar amplifiers but are great in valve microphones as it has a clear, detailed and warm sound.

This is an ideal replacement in audio amplifiers such as the QUAD 11 amplifiers and guitar amplifiers such as Vox, Blackstar, Badcat, 65 amplifiers and Matchless.



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