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build a cheap dub siren

 
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isistowers



Joined: 14 Nov 2010
Posts: 4
Location: Leeds, UK

PostPosted: Mon Jan 31, 2011 9:18 pm    Post subject: build a cheap dub siren Reply with quote

Hi, since completing the brilliant synare clone outlined in an earlier thread, ive played around customising a cheap velleman siren kit. Cost me about 25 quid including knobs n enclosure. It sounds proper with abit of delay.

Ive outlined the steps at my blog

isistowers.blogspot.com

And added samples. Hope it helps someone out there. Peace.


C

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JacoilGeko



Joined: 02 Feb 2011
Posts: 9
Location: Ferrara

PostPosted: Fri Feb 04, 2011 3:50 pm    Post subject: Reply with quote

i can't find the link! Cool ....
Pleaseeee post the clickable complete link-.....
Very Happy

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isistowers



Joined: 14 Nov 2010
Posts: 4
Location: Leeds, UK

PostPosted: Fri Feb 04, 2011 8:47 pm    Post subject: Reply with quote

Yes of course its

http://isistowers.blogspot.com/

I hope it helps

Bless


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JahNice



Joined: 17 Jan 2008
Posts: 256
Location: Dortmund City

PostPosted: Sat Feb 05, 2011 3:36 pm    Post subject: Reply with quote

Very nice little Siren Box. what does the knobs do? Did you add the second
one as mod? anyway, proper worx, i like it.. I'll try to build this siren kit
soon.


Peace

Yiannis
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isistowers



Joined: 14 Nov 2010
Posts: 4
Location: Leeds, UK

PostPosted: Sun Feb 06, 2011 12:46 am    Post subject: Reply with quote

Thank you for your positve comments. I'm really pleased with the results. To clarify your questions.

Both knobs are used to control the pitch of the siren ocillations, controlled by the three swtiches.

The black knob is a direct replacement for the pcb mounted RV1 220k included in the kit. This knob is the main pitch control.

The red knob I added later off the cuff and replaces the standard R3 100k resistor. This knob also controls pitch but makes the sirens super high pitch, just a little tweak, I may experiement with this down the line.

I'll be pleased to see what you come up with.

Peace

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stranded horse



Joined: 07 Mar 2011
Posts: 65

PostPosted: Sat Apr 09, 2011 1:38 am    Post subject: Reply with quote

Hey I build this kit too. How exactly did you wire the jack and the 3 switches replacing the dipswitch?

regards, Franz
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