Bias oscillator for tape recorders (CB7339E)

This circuit was found in a 1967 Electronics World. The circuit uses components of the time that are difficult to obtain, such as the transformer.

| Clique na imagem para ampliar |

Power Voltage Follower (CB13226E)
The integrated circuits used in this circuit are from the 70s and are therefore no longer common in...
Low Frequency Rectangular Generator (CB1448E)
This circuit was obtained in an American publication of 1977. The circuit generates rectangular...
CMOS Driver (CB13776E)
This circuit is from a 1976 Motorola CMOS manual. It can be implemented with modern Darlingtons like...