This circuit was found in a 1966 EEE. What it does is it converts the logic levels of 0 V and +4 V into -6 V and +6 V. Some older type transistors can be replaced by modern equivalents.
This circuit was found in a Philips documentation from 1967. The circuit uses components from the...
Found in old documentation, this circuit consists of a simple power source where the transistor must be...
An electric wind flow obtained by the corona effect can be obtained with this circuit from Radio...