More about speed (134)

1-07-1977 | Electric motors up to around a quarter horsepower can often be picked up very cheaply (ex-domestic appliances). They are...

1-07-1977 | This circuit is designed to indicate· whether anyone has attempted to telephone the householder during his absence. If the te...

1-07-1976 | The µA 78G can be used to construct a very simple power supply which will deliver 1 A at any voltage from 5 - 30 V. The IC has fou...

1-07-1975 | This circuit is intended for continuous speed control of small series wound motors, as used in most electric hand drills, etc.