The figure shows how to implement an alarm buzzer in an LM3914 to warn about crossing the scale limit. The circuit can use other types of warning.
This circuit was found in an old Electronic Design. It makes use of sidacs and operational not very...
The setting of this power supply is only 0.1%. We found it in a 1969 US documentation. Transistors...
We can also use the 4011 on this CMOS circuit that makes use of a crystal headset. The power...