[LectronFanModerator]

Hi all,

The Schmitt trigger is a very versatile circuit !

We change a few blocks and by setting the potentiometer we can adjust the charging and discharging of the capacitor.
Did you also notice that we use a 120 Ω resistor in series with the light bulb ?
This will reduce the lamp current and save our battery 🙂

In a few days, I will explain how this and previous version (part 2) works.

Did you also know that we can build these circuits also with the modern Silicon NPN transistors ?
Try it out !
The Ge transistors have other characteristics so we may need to adapt the circuit by changing resistor values.

Many greetings

• This topic was modified 3 years, 12 months ago by LectronFan.

[MichaelKeymaster]

Yet another great addition to your fantastic circuit contributions Frank!

Fellow Lectroneers, don’t forget that the legacy Lectron circuits use a positive ground.  The new Lectron circuits post 2001 use a negative ground.

Best regards to all,
Michael

[Author]

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