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With so many tried & true, tested, and readily available methods out there, I don't think I'll ever understand why people bother hacking around with inferior and hard to find IC's, unless they already

True 7 segment displays are tilted a bit which IMO makes the appearance a lot more attractive, the 14 segment "union jack" is straight up and down and looks weird and boxy when only driven as 7

Isn't there a 74xx series IC that is a BCD to 1-of-10 decoder with open collector outputs just for this sort of thing? They can be multiplexed nicely too without side effects but you do have to put a

Well like I said, they both have advantages and disadvantages. If I could only have one, I'd keep the analog scope, but I find having both to be valuable. I often pull out the Tek

They're pretty simple devices. A matrix of miniature incandescent lamps illuminates text printed on photographic film and is focused onto a screen by a matrix of molded plastic lenses. If there was

Can someone explain how you would wire this up? I don't quite get it. It's a NC switch and input 3 appears to be the pin that controls if its open. I don't get how I would wire it. Thanks. datasheet:

Thank you for the update - that is awesome news about the neon! From the photo on ebay I thought the labeled tube *might* be gassed. I eagerly await further reports! Mike -- www.mikerippe.com

Yes, this AudioXpress article by Joe Sousa has one. http://home.comcast.net/~jlrmsousa/precise_db_monitoring_with_eye_tubes_november_2006_audioxpress_joe_sousa2667.pdf Gaston

Here's a place with lots of info: http://www.educypedia.be/electronics/tubesspecial.htm

Hello Chuck. Try the second schematic on my site.? f6fkn.com You'll find what you're looking for, although it's been drawn around a Russian EM84 :6E3P But you can indifferently use both, without any

Here is a quite simple one: http://koti.mbnet.fi/siliconf/JukkaTolonen/ga/peakmtr/peakmtr.html

Try the second schematic on my site.? f6fkn.com You'll find what you're looking for, although it's been drawn around a Russian EM84 :6E3P But you can indifferently use both, without any change inside

Well I got the tubes from the seller in the mail. Pictures will follow later. 2 tubes one is unmarked the other is marked in blue with the following VX9110 DEV LAB SAMPLE NL NUMBER 7 It is an end view

Hi, I was wondering if anyone has run across a solid schematic for a VU meter based on these tubes. I've found finished projects, but not a good page that goes into build details.

If anyone has this chip, on hand, please build up the circuit on the last page of the datasheet, and report back to us. I hate to burst anybodies bubble, but I see a problem. Primarily, it looks as if

Here is a page with pictures of a number of projection displays and other displays that use light bulbs. (A shameless plug warning applies, given that I made the page.)

the best way i have found to DRIVE the projection displays is a cd4028 decade counter decoder driver & 2x uln2003 transistors in 16 pin dip, it take's BCD code also a good trick is to drive the lamps

Calculating the the meaning of life has been done: http://www.youtube.com/watch?v=Ltm583i6Gek