Gain 10 Amplifier (CB25636E)

Using a general-purpose transistor this AC amplifier was found in the November 1993 issue of Electronics Now.

10 Hour Digital Clock (CB17007E)
This 4-digit digital clock for hours and minutes with CMOS integrated circuits was found in a 1995...
4-Channel Mixer (CB17319E)
This mixer or 4-channel mixer was found in a 1986 documentation. It uses two Ibrape stages sold in...
Universal Active Filter (CB19694E)
This 4-function, high-pass, low-pass, band-pass and rejector filter was found in French...