Source for Evil Mad Scientist "Three Fives" Discrete 555 Timer Kit

[davehoug]

I would like to purchase a discrete thru-hole kit to mimic what a 555 IC chip does. As a learning tool and way to measure voltages along the path from in to out. A used kit in working order would be good instead.

I tried to search DigiKey but no luck.

Help a newbie???

[Kaleb_Kohlhase]

Welcome to the TechFroum davehoug! There are a few ways to go about this. Personally, I think it would be easier to find pre-made 555 timers and use various sources as the learning tool instead of trying to build your own. The only kit I could find that might work to make such an experiment would be 7-555TIMEAMP-KIT-ND. This doesn’t have direct documentation, so you’d have to look up the part numbers in the kit for datasheet information.

Resources for Learning

Here are some resources I found that could help:

The 555 Timer - How it Works

The 555 Timer - Astable Mode Two states define its operation Build up a model around a central component The operation of the 555 Timer (Astable Mode) is surprisingly simple. But instead of lengthy pin desciptions, the topic begins with a single component and two basic states. We’ll also create a first order SPICE model with basic components for some hands-on learning. Also, I recently added an LTSPICE schematic file to the topic! Check out other circuits to boost both your theoretical and …

555 Timer Tutorial: How It Works and Useful Example Circuits

How to Calculate 555 Timer Duration & Frequency – ATM Quick Take | Digi-Key Electronics

[davehoug]

Thank you, that is a great start on my journey.