6CA7 Electro Harmonix Power Tetrode
Also known as EL34 or KT77
Electro Harmonix has designed these 6CA7 power tubes to exact specifications as the original Philips 6CA7. A big bottle classic tetrode built to provide high gain amps a tube that can handle the treatment while still providing detailed tone.
Essential a military grade version of the EL34 can be used as a direct replacement.
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Recommended for Primaluna22 February 2021I rolled these in to my Primaluna EVO 400 to replace the stock EL34 which I had been listening to for a few months. The stock EL34’s have a sweet but very forward midrange, with fast bass albeit not a lot of body and weight, and a smooth top end that’s a little rolled off. The EH 6CA7’s have a much more balanced presentation top to bottom, really nice highs a touch more pronounced without harshness, midrange excellent though not as forward and sweet - a bit more matter of fact, and the bass has really impressed me, considerably more weight and fullness but very detailed. Really happy with these power tubes as an alternative to the stock el34’s and shopping with Evatco was pleasant and easy.
Good deal17 May 2018Liked quality of the product and delivery speed - all as expected! Will keep shopping with Evatco.