This is my Airbrake!

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asintoras
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This is my Airbrake!

Post by asintoras » Tue Mar 17, 2009 10:44 pm

Hi everyone:

This is the attenuator I built with the help of Williameon, who sold me the parts and sent me the layout. It sounds great, and I'm waiting for Otto to help me with the diagrams for the foot-switch to bypass it when I'm playing a guitar solo.
Hope you like it.
[IMG:1350:805]http://img27.imageshack.us/img27/3448/p1010011g.jpg[/img]

[IMG:1200:900]http://img27.imageshack.us/img27/4771/p1010013h.jpg[/img]

[IMG:720:540]http://img6.imageshack.us/img6/8273/airbrake1.jpg[/img]

[IMG:720:502]http://img6.imageshack.us/img6/2035/airbrake2.jpg[/img]
Last edited by asintoras on Wed Mar 18, 2009 6:15 pm, edited 1 time in total.

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gahult
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Re: This is my Airbrake!

Post by gahult » Tue Mar 17, 2009 11:33 pm

OK' I'll bite. Am I missing something here :?: :?: :?: :?:

Gary
In the 60's people took acid to make the world weird. Now the world is weird , and they take Prozac to make it normal.

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toneman
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Re: This is my Airbrake!

Post by toneman » Wed Mar 18, 2009 12:10 am

Looks Great :D

guitarsnguns04
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Re: This is my Airbrake!

Post by guitarsnguns04 » Wed Mar 18, 2009 12:17 am

that looks great..how did you get it lettered like that?

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M Fowler
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Re: This is my Airbrake!

Post by M Fowler » Wed Mar 18, 2009 3:10 am

OK I will play too Gary.

Nice looking unit but how does that variable resistor work with one center lug and the non adjustable resistor has three lugs doing nothing or are there two variable resistors and one is upside down and why would anyone put the thing upside down?

Mark

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gahult
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Re: This is my Airbrake!

Post by gahult » Wed Mar 18, 2009 3:53 am

K Mark, It has to be 2 Adjustable Tap Power Resistors, 1 rotated so we don't see the wires. :roll: :)

But, what is with the other one with 1 center tap lug :?: :?:

I wonder how it is implemented in to the know schematic and layouts :?: :?:

Thought I was not seeing things...drawing a blank... hey, a drawing might splain it. :?: :)

Gary
In the 60's people took acid to make the world weird. Now the world is weird , and they take Prozac to make it normal.

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M Fowler
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Re: This is my Airbrake!

Post by M Fowler » Wed Mar 18, 2009 4:16 am

Gary,

The other resistor is variable between 50 watts or 100 watts.

Mark

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gahult
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Re: This is my Airbrake!

Post by gahult » Wed Mar 18, 2009 4:30 am

I was thinking Rheostat but, this ain't got one. :)

Looks like I have to go read the airbrake without Rheostat thread to get a clue.

So, once I go research that all will become clear as far as the center lug. 8) :shock: :roll:

Lectonics becomes so interesting once one becomes enlightened. :twisted: :twisted: :twisted:

Gary
In the 60's people took acid to make the world weird. Now the world is weird , and they take Prozac to make it normal.

Abstract
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Re: This is my Airbrake!

Post by Abstract » Wed Mar 18, 2009 1:46 pm

The lettering looks like it says THC... :wink:
drhulsey wrote:There are just too many cool things in this world for one life. Thank God for reincarnation 8)

asintoras
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Location: Bryan, TX

answers

Post by asintoras » Wed Mar 18, 2009 3:03 pm

OK... let's see it:

First of all, I really don't know about electronics, so I just follow the diagrams to built.
Probably, what you are missing is one of the resistors located underneath. This picture will show you:
[IMG:1200:900]http://img4.imageshack.us/img4/9051/p1010014n.jpg[/img]


If you want a drawing of what I did, here it is:
[IMG:1080:765]http://img3.imageshack.us/img3/7407/airbraken.jpg[/img]

The plate is a plastic with a layer that imitates steel, and the THC lettering is the logo of my band "The Hammurabi Code". It's laser engraved.

Hope I will answer all your questions.

Thanks,

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M Fowler
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Re: This is my Airbrake!

Post by M Fowler » Wed Mar 18, 2009 4:34 pm

Ok the problem I have is what attenuation are you getting from your design.

What layout did you use to come up with your design and layout?

Have you tried this out on your amp?

Mark
Last edited by M Fowler on Thu Mar 19, 2009 3:10 am, edited 1 time in total.

asintoras
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Re: This is my Airbrake!

Post by asintoras » Wed Mar 18, 2009 5:59 pm

M Fowler wrote:Ok the problem I have is whay attenuation are you getting from your design.

What layout did you use to come up with your design and layout?

Have you tried this out on your amp?

Mark
Yes,

I have tried on my amp (Gibson Super Goldtone GA30-RV) without any problem. The original layout I got it from Otto, the guy who sold me the parts:
[IMG:2387:3258]http://img10.imageshack.us/img10/1908/r ... layout.jpg[/img]

I have five different degrees of attenuation (obviously), the number 6 being the bypass (no attenuation). There are no lugs doing nothing (every lug has a connection somewhere), and why does it matter if one resistor is upside down? even the original Airbrakes have it.

Can you be more specific about the problem you see?

Thanks,

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rawnster
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Re: This is my Airbrake!

Post by rawnster » Wed Mar 18, 2009 6:44 pm

I wired my airbrake pretty much the same way as is shown in asintoras' drawing. The only exception is that I don't have a footswitch option. Sounds great though, and attenuates as expected. This wiring scheme is the same one that was passed around in the non-rheostat airbrake thread.

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M Fowler
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Re: This is my Airbrake!

Post by M Fowler » Wed Mar 18, 2009 9:32 pm

Rawnster,

I now understand and figured it out that he had his resistor upside down and it was not obvious as to what was going on at first. Most others have their resistor facing up so they can see the wire on the resistor.

Mark


http://ampgarage.com/forum/download/file.php?id=7133

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toneman
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Re: This is my Airbrake!

Post by toneman » Thu Mar 19, 2009 2:36 am

Is the extra ressistor to make it an 8 ohm brake?

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