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I read an article that claimed it is possible for one 555 to amplify another when they are placed in cascade (serially). We always use transistors for amplification; why would we place a 555 in that position?

Null
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EJavaM07
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    The amplifier in 555 is not really used for "amplification" per se. 555 main application is timing circuits (multivibrators and such) – Eugene Sh. Feb 22 '22 at 19:14
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    Can you specify what "amplifying a timer" means? – Ilya Feb 22 '22 at 19:16
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    I for one, would like to read this article. Please click the edit link below your question and add a link to this article, thank you. – rdtsc Feb 22 '22 at 19:36

2 Answers2

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The internals of a 555 consist of a pair of comparators and an S-R flip flop. It doesn't have an 'amplifier' as such.

More about the 555 here: Astable 555 circuit always on, not oscillating

Perhaps what you mean is to use multiple 555s to create longer time periods. In theory, you could do that.

(related: Why isn't my 555 cascading timer working?)

If that's what you're after, a long binary counter or a microcontroller are better options.

hacktastical
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No, not possible, as an NE555 does not amplify, it's not an amplifier.

We would not place a 555 in that position.

Justme
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