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ID this schematic symbol if pssible?
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new voodoo



Joined: May 06, 2013
Posts: 90
Location: RVA USA

PostPosted: Tue Jan 14, 2014 7:15 am    Post subject: ID this schematic symbol if pssible?
Subject description: cant google a symbol and ive tried describing
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cant google a symbol and ive tried describing it and searching. Its bvisously a LED or Diode I guess, but i want to be sure as im thinking ill build the EF and have sme things id ilke to use it for if it works well.
Im speaking of the Diode-like symbol with the 3 diagonal lines on its side.
I know its probably simple but im not a trained engineer, im just learning as I go along and for whatever reason-ive never run into it before.

Thank you for any help or assistance anyone take the time to provide.


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analog_backlash



Joined: Sep 04, 2012
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PostPosted: Tue Jan 14, 2014 7:34 am    Post subject: Reply with quote  Mark this post and the followings unread

Hi new voodoo.

The symbols are for LEDs, as you guessed. The schematic is from Nicolas Collins' book Handmade Electronic Music: The Art of Hardware Hacking. I don't have the latest copy, so this circuit is not included, but I guess by the values of the resistors that they are ultrabright LEDs (I think standard LEDs would be very dull if supplied by such a small current).

Gary
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new voodoo



Joined: May 06, 2013
Posts: 90
Location: RVA USA

PostPosted: Tue Jan 14, 2014 11:31 am    Post subject: Reply with quote  Mark this post and the followings unread

thats funny, either my copy doesnt have that schema or i did nt notice/remember it. Thats a great book though, cant say enough good about it, but got the schema froma friend when asked if he had one for an envelope follower w low part count. Probably he doesnt even know where he gt it. I have files on all my laptops, even my tablet, that have hundreds in them and I probably couldnt say where I got all of them--especially ones i dont use often. probably hes the same.

at any rate, thank you-its appreciated-I certainly didnt want to guess. Its aways good i think to start building with the least possible uncertainty-that way if something goes wrong--its easier to locate the problem.

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analog_backlash



Joined: Sep 04, 2012
Posts: 391
Location: Aldershot, UK
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PostPosted: Tue Jan 14, 2014 4:19 pm    Post subject: Reply with quote  Mark this post and the followings unread

Yes, I think that the newer edition has more circuits in it. My copy looks like this:

http://www.amazon.co.uk/Handmade-Electronic-Music-Hardware-Hacking/dp/0415975921

and the newer version has this cover:

http://www.amazon.co.uk/Handmade-Electronic-Music-Hardware-Hacking/dp/0415998735/ref=dp_ob_image_bk

I haven't seen the newer edition, but I think that the schematic came from it, at least that's what it says at the bottom of this page:

http://rdb-sandpit.blogspot.co.uk/

Gary
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new voodoo



Joined: May 06, 2013
Posts: 90
Location: RVA USA

PostPosted: Wed Jan 15, 2014 6:20 pm    Post subject: Reply with quote  Mark this post and the followings unread

Dammit. I hate upgrading, buying things twice etc I was really happy when music went digital and i didnt have to buy Morrison Hotel for like the 8th time (8track, LP, CD, cassette, etc)
but oh well-honestly i cant think of many authors id rather support, now that kurt Vonnegut is dead

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-vintage parts & tubes, IC's & audio chips
-oddities & weird
newvoodoo.blogspot.com
-bending DIY/projects
-crap
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