VU meter with LM3914 (CB24653E)

This audio level indicator was found in October 1980 Radio Electronics magazine. See the table with the dB values of the indicated signals.

| Clique na imagem para ampliar |

Line amplifier for UHF (CB9168E)
This circuit was found in an Elektor from the 90s. The circuit is critical, requiring a very...
Bistable Multivibrator (CB9925E)
This circuit using an operational amplifier was found in old American documentation. It can be...
High Voltage Regulator (CB16989E)
The relationship of values between R1 and R2 determines the reference voltage for this circuit that...