Easy 2 transistor electronic Red/Green LED flash. It works 5/6 months on 2x1.5 V alkaline batteries



Published
Please read the description/textbox first. The 2 transistor LED Flasher that I published approx. 2 month ago is revisited in this video, telling more about that simple circuit and how you can adapt the flash ratio.

It is a beginners circuit but also usable for adults (electronics-adults) in many ways.

So I pay attention (for the beginners) on looking at a transistor board in a “flipped” (mirrored) way. That can give so much confusion, especially for electronics hobbyists.

Regarding the circuit in an “overview” (the not beginners way): when you look at it as an oscillator circuit with which you can change the output frequency (changing the value of R = now 1 MOhm and the value of C= now say 1 uF) you can get to other usable oscillation frequencies.

Say: usable for other electronic purposes. Say: amplifying that frequency to drive a transistor or a MOSFET.

Of course it is a good idea to use the oscilloscope and study the waveforms, how they can be changed, how you can use a certain frequency (made with different R-C values) for your (or a specific) application.

In this way the circuit is not a beginners circuit.

My You Tube channel trailer is here: https://youtu.be/xbgQ8T3oqh4 When you search, search always “NEWEST FIRST” to get the right overview. You can also search via the “looking glass” on my Channel trailer via keywords like ”audio”, “radio”, “amplifier”, “filter”, “Shortwave”, “transistor”, “FET”, “oscillator”, “generator”, “switch”, “schmitt trigger” etc; so the electronic subject you are interested in.

My books about electronics & analog radio technology are available via the website of "LULU”, search for author “Ko Tilman” there.
https://www.lulu.com/search?adult_audience_rating=00&page=1&pageSize=10&q=Ko+Tilman

I keep all my YT videos constant actual, so the original video’s with the most recent information are always on YouTube. Search there, and avoid my circuits that are republished, re-arranged, re-edited on other websites, giving not probable re-wiring, etc. Some persons try to find gold via my circuits. I take distance from all these fake claims. I cannot help that these things happen. Upload 11 July 2022.
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