100 Hz Second Order High Pass Filter (CB25815E)

This filter with the 741 op amp was found in the February 1995 Electronics Now magazine. The power supply must be dual.

NAND Gate LM3900 (CB5046E)
As in the previous case (CB5045E), we have in the circuit of the figure the use of the polarized...
Audio Mixer with LM741 (CB25928E)
This circuit is from a Radio Electronics magazine from May 1989. The power supply must be...
Divide-by-6 Counter - 4018 (CB168E)
Figure bellow shows how a digital frequency divider or counter can be created using the flip-flops containing...