This is a diagram of a 1970s reel or tape recorder. It is an Italian Geloso recorder, quite popular at the time. The circuit is a reference for equipment recovery.
We find this circuit in a technical documentation of 1976. The transistors can be the BD135 and...
August 2016 - It can be obtained from Mouser Electronics the new temperature and humidity sensors from...
This limit alarm was found in a 1980s US documentation. Comparators can be equivalent and the...