Emission Labs 50 Rør - Parret par/2 stk.

Description

Introduced in 1928 by RCA, the historical 50 tube, was one of the first higher power triodes for Audio Applications. The curves of this tube are extremely nice, and so distortion will be very low, even at high signal. For that reason, it was originally recommended to use transformer coupling, which method is the safest for high output power circuits. Although the EML50 is much higher quality than the original 50 tubes, and the EML can safely be used capacitor coupled, you can stay closer to the original circuits and design ideas, by using transformer coupling.

Operation and operating points are identical to the historical 50, but it is also possible to use the EML at higher Anode dissipation, up to maximum 28 Watt continuous.

Guarantee program for first owner.
The first owner can register the tube within 4 weeks after receival, at the Emission Labs ® website, to participate in the 5 years guarantee program, which is additional to the legal obligations of the seller.

Features
Gold Plated Grid
Center tapped filament
Hard metal Construction (Note1)
Two extra large getters
Hand blown Glass bulb
Anti-microphonic Anode- and grid suspension
These tubes are shipped in a high quality dual box
Tube printing with real gold (metal), red color is glass burned into the glass

Sound Character of the EML 50
Specially intended for use with the historical type 50, the type 81 mono diode was introduced at that time. At EML we did the same thing, we introduced the 50 and the 81 together. In order to make a rectifier circuit, the classical way, just parallel the heaters of the 81 mono diode, and the result is a double diode, which is more powerful than a tube like 5U4G.

According to Alesa Vaic who was the first re-introduce the 300B in 1994 (under the Vaic Valve brand), DHT tube families, amongst others are also characterized by their heater voltage. This explains the popularity of the European 4Volt tubes, like AD1, PX4, PX25, RE604, but also 2.5V tubes like 45 and 2A3 have their own fans. The 50 (and also the 81 mono diode) with it's 7.5V heater are a family of it's own for this reason.

The EML50 is made with a boxed anode, which makes the tube larger than the RCA tube, and we get less distortion in return for that. This can already be seen by looking at the curves, which are simply excellent. Though there is a resemblance with 300B, the 50 is different. The 50 feels best at higher voltage and higher impedance. I try to describe the sound of such tubes as softer, silkier, less dominant than a tube like 300B.

Mere information HER