1 kHz oscillator (CB21934E)

This circuit was taken from the 1960's Mullard Transistor Manual. Information about the coils is given along with the diagram.

| Clique na imagem para ampliar |

18 V Voltage Doubler (CB20180E)
In the figure we have the way to obtain a voltage of 18 V from a 6.3 V transformer with central...
DC Motor Control (CB20443E)
This motor control using transistors was found in a recent English publication. The circuit is for...
Alarm Power Supply (CB18673E)
This power supply was originally designed to power our next circuit (CB18672E) which consists of a...