Raysonic SE-20, 300B SE Amplifier: Intermittently Noise (Crackle) Problem

August, 2023:  Pada Juli lalu masuk ke workshop LJ sebuah amplifier tabung SE (single-ended) 300B, Raysonic SE-20. Raysonic adalah brand asal Canada namun saya rasa pabrikasinya di China. Mohon koreksi saya apabila keliru.

"Pak Alex, Raysonic 300B saya muncul suara kresek di salah satu kanal," saat kawan di Palembang ini menghubungi saya melalui telepon. "Bisa bantu periksa, nggak?" Karena kawan, pelanggan lama, saya menyanggupinya. "Saya usahakan, dengan catatan, kirimkan dalam kemasan yang aman, dan tidak buru-buru ya."

Class-A Amplifiers

Class A amplifiers always have had a good reputation among audiophiles. When talking about low power designs these are in most cases designed as class A. Talking about audio power amplifiers, the picture is quite different. Here class B and A/B amplifiers play a dominant role, while class A is more seldom. In this article we will have a look at the different types.

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