EC8010 / 8556 / EC8020
The EC8010 or 8556 and its bigger sister EC8020 are tubes produced almost exclusively in Germany, in the case of the EC8020 exclusively by TELEFUNKEN. They are Indirectly heated Triodes with noval base, high gain and Transconductance. Developed and produced in the early 60s, they are designed for use in VHF but given their excellent characteristics (signal amplification, low plate resistance, very low noise, high amplification factors and extreme linearity) they have captured the attention of DIY designers for AUDIO applications. In particular the EC8020 is considered the "Holy Grail" of preamp/signal tubes for Phono stages and more!
- EQUIVALENCE EC8010: 8556