E406N / LK4112

The E406N PHILIPS MINIWATT or LK4112 produced by VALVO are among the most famous Triodes used in the low frequency amplification stage in Radios since the mid-30s, obviously together with the 2A3 and other German and English triodes of various markings. These valves, in addition to being very linear TRIODES, are distinguished by their excellent construction, a fascinating aesthetic elegance, as well as having been designed for maximum harmonic and linear performance in the Low Frequency range, the AUDIO frequency. This is some of the many reasons why, today, they are a cult object for audiophiles, especially DIY designers.