This circuit was obtained in the magazine Eletronica Prática 9 of 1977. The Italian magazine no longer exists. The critical components of the project are the transformer and the transistors. Capacitors can be brought to current standard values.

This circuit was obtained in the magazine Eletronica Prática 9 of 1977. The Italian magazine no longer exists. The critical components of the project are the transformer and the transistors. Capacitors can be brought to current standard values.