LM3914 Audio Peak Indicator (CB24654E)

This bargraph circuit using LM3914 was found in the October 1980 Radio Electronics magazine. Note the use of a transistor to modify the response.

| Clique na imagem para ampliar |

1 Hz standard (CB15785E)
The circuit shown in the figure generates signals of 6 Hz and 1 Hz, which can be used in...
1 to 1 Astable Using the 555 (CB863E)
An stable multivibrator with 50% of duty cucle can be mounted using the 555 as shown by the...
Square Signals 555 Astable (CB1296E)
This configuration is traditional and can be found in many other circuits in this section. The...