Quote from: jwin615 on April 21, 2023, 08:54:11 PM
Another alternative is instead of an astable vibrator, use it as a hysteric oscillator. See attached. Not sure if it would improve or not but easy enough to breadboard.
Noise is likely from the current spikes from the NE555 because, for a brief moment both transistor are high. I didn't even consider this 2hen I made the original recommendation. My apologies. This isn't the case with a CMOS 555(LMC555) and they're almost as cheap as NE555. About $1.50 each. Or you can get 10 for about $4 on AliExpress. Tayda doesn't carry them unfortunately. They can't handle as much current as the NEs, but 2 LEDs would be fine.
You could always use your spare NE555s and make some Atari punk consoles. Or a stun gun... Then you'll really be down the rabbit hole.
It's no worry, man... I like to experiment with simple-on-the-surface stuff like this, hehe. I'll breadboard up what you posted and try it... Worst case scenario, it just has an extra LED and I give the timers to my circuit bending buddy. I'd be out a few bucks tops.
It's still looks fun with the jewel lens either way - my goal has always been to make them look like toys - fun color enclosures, LEDs and knobs, no labels (though I think I may hit up a buddy with a cricut soon for a couple of the more complicated ones).