Devoted to analog audio, tube amplifier, loudspeaker, radio amateur antenna

Articles about Hi-Fi

The list below contains a collection of various technical issues. It will be a mix of teoretical and practical articles.

There will frequently come new articles here.

If you have any questions, you are welcome to use the "Contact" topmenu.
I will then respond to you as soon as possible. By contacting me, you shall agree, that your question and my answer will be brought in a FAQ on this homepage.

Movic A2 Taperecorder

This is a collection of info for this Danish oldtimer. At the date of manufacture it was among the best in reel to reel recorders.
It was manufactured ín the beginning of the sixties.

I have worked a lot with this recorder, and have a good knowledge of how to get the mashine working- so if you have questions, please use the "Contact", and I will try to give you an answer as soon as possible.

The text is in Danish. It is a big file.
Movic A2. pdf

Designing the Analog Power Supply

This article describes how to design an analog power supply ,
The data for power transformer, rectifier, charging capacitor are considered.
Designing the analog power supply.pdf