Austin #9
by drbleep
The ninth Austin workshop is coming up this Sunday the 11th and we’ve got a great new beginner kit!
Eric dug up an old Forrest Mims design of an insanely simple phototheremin and made this great little guy:
We’ll be offering a very easy to build circuit board version of it for only $5.
Afterward we’ll have another Swap N’ Show. Bring your own noise creations to show off or bring your parts and junk and to trade, sell, or give away.
Handmade Music Austin #9
Sunday, July 11th at Salvage Vanguard Theater
2 pm – 7 pm
Only 30 kits will be available. First come, first serve.
Contact Dr. Bleep for more info
drbleep@bleeplabs.com
Very nice version of my old circuit! I love the video.
That circuit was adapted from a very early transistorized code practice oscillator that I bought at an electronics store. I used the same circuit to pulse an IR LED in the various travels aids for the blind I designed and built. The circuit was also used in the light flasher for model rockets that became the first product we developed at MITS–the company that introduced the Altair 8800 microcomputer in 1975.
Forrest M. Mims III
http://www.forrestmims.org
Hi Forrest, thanks for pointing out the original ideas for this circuit. Even though most of us will just be waving it around and appreciating crazy sounds, it illustrates a valuable principle – converting light intensity to frequency is important in science, engineering, medicine, astronomy…
I’ve enjoyed reading about your ongoing work in monitoring solar radiation, and I remember seeing the basis for some of these experiments in your early publications.
Thanks for being a prolific author, you’ve inspired many of us.
-eric