My box does not exactly match Grant’s circuit, I made a few substitutions here and there. Most notably I completely left out the VTL5C3 because I didn’t have one and the circuit works fine without it. The only part I actually bought was the LF398 sample and hold chip because it is vital to the design. The rest of the parts are whatever I had in my junk box so a lot of resistor and capacitor values are different.

Unfortunately, I was not documenting all my changes so I can’t tell you exactly what I did but that doesn’t matter because I am sure that the original design works better than my ugly hack.

Good luck building yours. It’s good to see people having a go!

maker of assholish troll posts on people’s personal blogs, are ye, nate?

Hey Weez, in addendum to your previous post, you could also use a video game dance pad (a la Dance Dance Revolution) for your Twister controller: multiple piezo elements in a pad with cord.

Regards,

Merrick Hard

I was a prototypist for Bell Laboratories and many other F500 R&D houses before I retired. Hand me a schematic and I hand you a prototype device or test jig.

Plenty of 1st protos from my bench looked MUCH worse than Adam’s first go. I love the fact that Adam had a go. Fining up could change the entire machine or purpose, but it’s a bunch of fun as it is.

If your pissweak personality needs some cheap thrills like stomping on Adam, why don’t you just go kill a few kittens?

Wanker.

You could use a number of different ways to control it, but easiest would be some sort of keyboard or series of switches with levers and spring returns.

Could be loads of fun at dance parties. :D

While the cracked & crazy appearance is not half cool, you can poke holes in CDs without cracking by punching and widening with a hot soldering iron. Open the windows- it’ll smoke & stink when you do it. Wrap some sandpaper around a pen barrel for finishing or fine adjustments of hole size. Use an old iron tip or sand back & re-tin your iron tip after plastic meltification.