Lernprogramm Röhrentechnik, Teil 14 (Zweistufiger NF-Verstärker)

With this video, we want to review our first self-built pentode circuit. We will specifically examine the circuit and operating point settings. A two-stage audio amplifier with the EF98, a 12V battery tube. I'm curious to see if I can inspire you with this project... This project, of course, has no commercial goals; it is an educational project. Therefore, it is not my intention to promote or advertise any products. Furthermore, no products were provided by companies or organizations for this project; they were purchased by myself or came from a museum. Looking back at previous developments offers a unique opportunity to learn from old patents and to re-introduce them to current projects and developments. All written contributions represent my own independent opinion. Please note this to avoid misunderstandings. Technical errors (despite all due care) can never be ruled out!