High frequency VCO (CB20604E)

This circuit can generate signals up to 100 kHz. Found in documentation from the 1980s, it makes use of operatives of the time.

| Clique na imagem para ampliar |

Triangular generator (CB21445E)
Found in old documentation about neon lamps, this circuit produces very low frequency signals that...
Hartley Continuity Tester (CB11947E)
In the figure we show how to use a small Hartley oscillator as a continuity tester. The component...
Optocoupler Low Power Interface (CB15491E)
In the figure we have a interfacing circuit of TTL logic as CMOS logic using a 6N139 optical...