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I've been putting thought into this as well. The coil triggering method is dependant on the speed of the pendulum as it passes the coil; greater speed results in a higher voltage pulse and vice versa. As any of these cirucits are basically a comparator, triggering the impulse when a set voltage...
My physics is a bit rusty, but I'm wondering how a microcontroller or other 'smart' impulse method affects the pendulum accuracy... If I understand correctly, a pendulum has a natural oscillation, and it's period is not necessarily related to the length of swing in the arc, but only the length...
I'd like to avoid any electronic timebase in my project. While I'm sure that such a circuit would no doubt improve the accuracy of the clock, there is just something about a 'natural' timebase that appeals to me. Occasional time (re)setting is just another reason to go play with it LOL. I...
I think it may be important to differentiate that a plc is the term used to describe an entire system that includes hardware and software. The reality is that plc's actually use some type of microcontroller or microprocessor internally The primary difference is the programming language that is...
Have you seen this one? It seems to infer the kinetic art toys I referred to earlier use the same idea... I may pick one up at the local dollar store just to open it up...
I'm thinking of incorporating a decent sized relay (open frame for good aesthetic measure) that will be synced with the...
I'd also consider the **broken link removed**, a simple to build tube based od. Hv design, without the need of hv xfrmrs...
I will grant you that is true, but I will also suggest that many guitar heros began in a similar fashion, attempting to emulate their heros... We all got to start...
I'll just add that if a pc could be part of this project, you could always write some code to get the fft (spectrum) data out of Winamp or something... That would additionally allow for coding some averaging or integration functions that may be easier (and more easily experiemnted with) than...
Another clock fanatic besides myself... I'm not sure if I should be amused or concerned LOL.
I have been thinking of a similar project, using the natural pendulum cycle to drive a nixie display...
Anyaway, I am wondering if one of those inexpensive 'perpetual motion' kinetic art toys...
A 24 x 2 is only $3.95 at the BG Micro link I posted above. Surplus lcd's I've seen nearly always come with controllers like the 44780 or other std... It's the oem units like the calculators that are problematic...
Looks like a Tek Dm44 dmm option...
Not a bad price for a 465B, just be careful with untested test equipment (actually, that's kind of funny ;))... 'Powers On' could mean only the power light comes on... Note the seller's return policy does not apply as they advertise it 'as-is'... But it...
Me too. Something about electronic displays and movement that I find fascinating. Probably one reason why every 3rd project of mine seems to be a clock LOL.
I also like the steam-punk crazy open wiring stuff of that 2nd link, Jack Dollhausen...
That last link, Ken Feingold, borders on...
Was organizing my favorites and figured I'd share my current list of cool net time wasters:
**broken link removed**
**broken link removed** has some cool stuff, but the layout is pretty odd... Click the 'How do you find anything here' link for a list of his electronic works.
The Wooden...
I think what you want is called a baxandall tone control.
Edit -
Oops... Didn't read it correctly, I guess that is pretty much what you already found. I can't think of any that boost/cut both bass and treble at the same time, that seems almost the same as simply cutting/boosting the mid...
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