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0 votes
4 answers
662 views

Simplest Inverter

Theoretically, what is the simplest inverter circuit possible? I mean, really basic. With the least amount of components. It doesn't have to be nice. It doesn't have to step up the voltage, or anyth …
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  • 1,089
0 votes
2 answers
1k views

What is the simplest possible monostable 555 timer circuit?

Say for instance, the goal is to light an incandescent bulb for x amount of seconds (let's say 20). What is the simplest configuration possible? Of course, simple timer circuits aren't rare, and can …
voices's user avatar
  • 1,089
0 votes
1 answer
129 views

Secondary linear lamp circuit interrupter switch

Following on from this answer to a previous question from a while back, I want to add a new lamp (with its own button/switch). The new lamp should be controlled separately (i.e. not controlled or af …
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  • 1,089
16 votes
3 answers
8k views

Can a thyristor be built from two transistors?

Supposedly, an SCR/thyristor is just a simple, four layer PNPN semiconductor. If that's the case.. When a circuit calls for a SCR/thyristor, and there isn't one available, can it be substituted by ( …
voices's user avatar
  • 1,089
1 vote
6 answers
2k views

Time delayed deactivation of a circuit

In a simple electronic circuit with a momentary switched LED (or bulb, tube etc.); what can be done to trigger the LED for several seconds before proceeding to break the circuit? In other words; I wa …
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