Episode 70 - DIY Electroluminescence: Great Light Without The Shocks

[xibalba]

http://revision3.com/systm/kiki/

[rancidlm]

Great Episode
Dr. Kiki and David Calkins make great hosts for system

[masherscf]

I've thought from the beginning that Kiki was a great fit for SYSTM.

[kern802]

Great Episode!
Good content and fun to watch.

[xibalba]

Originally Posted by masherscf

I've thought from the beginning that Kiki was a great fit for SYSTM.

I agree.

A couple times I believe David's eyes wondered down when looking at her haha

Kirsten! YAY!

[aaronbond]

Originally Posted by xibalba

I agree.

A couple times I believe David's eyes wondered down when looking at her haha

can't blame the man. he's in the presence of beauty. tell me you wouldn't?! ha. this was a pretty dope episode. David's very informative and you can tell he's a natural-born teacher. I'm glad he's on as a perm. host.

anyone else notice the high-pitched frequency when the EL was powered? it was abit annoying. is that always the case?

[xibalba]

Hahah...

an awesome ep.

This is something I may actually try and do.

[cybersuchus]

Originally Posted by aaronbond

anyone else notice the high-pitched frequency when the EL was powered? it was abit annoying. is that always the case?

Yeah, I caught that too. It reminded me of the whine I hear from the old CRT televisions when they are turned on, only a tad louder.

[haku]

Another great episode guys! a shame EL sheeting is so expensive (especially UK suppliers) and I was hoping for a little more creativity in the ideas but it was still good to see, well not very well - for those episodes where you need to film short pieces in the dark wouldn't a basic DV camcorder with night vision capabilities see the stuff the studio cameras can't?

Originally Posted by aaronbond

anyone else notice the high-pitched frequency when the EL was powered? it was abit annoying. is that always the case?

I believe so, the DC to AC inverters I've used/seen all make a high pitch whining sound but not all are that loud.

The EL backlighting of my (really good) Metrix MTX3282 multimeter & Philips ProntoNeo remote both make a notable noise when lit.

But you can cut down the noise by housing the inverter in another box like I did with the one for the EL wire in a custom mp3 dock:


I wonder if potting the inverter board+components would eliminate or amplify the sound?