13W Amplifier (T486E)

This 5-tube hi-fi amplifier was found in an American publication from 1947; The output is in class B and the circuit uses a source with transformer.

| Clique na imagem para ampliar |

CMOS Clock Generator (CB10731E)
Although it is a common configuration today, these circuits were taken from an old publication. The...
230 to 2.8 kHz Adjustable High Pass Filter (CB12571E)
The cut-off frequency of the filter shown in the figure can be adjusted to values between...
Flasher with control (CB9786E)
This flasher or light pulsator can be used in an ordinary flashlight. The circuit can be adapted to...