Ring Oscillator 4011 (CB24865E)

Another triggered oscillator that we found in the November 1984 Radio Electronics magazine. The frequency is also given by R1 and C1.

| Clique na imagem para ampliar |

Digital volume indicator (CB7008E)
Found in an old Elektor, this circuit uses two 7-segment displays to indicate the volume of an...
Ohmmeter (CB19751E)
This resistance meter has a linear scale, converting resistances to voltage. The operational...
Over-temperature alarm (CB10485E)
I got this circuit from an English magazine from 1977. It can still be easily assembled, as the...