DIY Vacuum leak detector for less than $20

[El_Guero]

Psych,

Where are you at? On the Island, or landlocked?



wayne

 

[MurphyLaw]

Sorry I am trying to get a boat out my yard that has become an Albatross. Was a one day deck delamintation repair and has since become a split hull and complete hull re-gelcoat. Don't make any money on this type of never ending repair and customer is complaining.

Will tackle the leak detector project this weekend.

The having to wait 24 hours for uploaded pic approval on this board is a real pain, I normally throw up some pics and write around them, now I have to upload the pics then wait until they are approved then write them up

 

[SamSam]

I don't know anything about electronics, but is this about the same thing? If you skipped the dish and put the transducer in the end of the box, it seems it's the same as ML's apparatus.

http://www.arrl.org/files/file/Technology/PLN/Ultrasonic_Pinpointer.pdf

 

[SamSam]

.

Here's another one...
Scroll down on the linked page for the schematics

http://www3.telus.net/chemelec/Projects/Ultrasonic/Ultrasonic-1.htm

And another one...
http://circuitos.cl.tripod.com/schem/r113.gif

The guy's got all kinds of gizmos...
http://discovercircuits.com/U/ultrasonic.htm



.

 

[rob denney]

I can build it with your instructions... send me the details and ill make it happen...

Me too.

rob

 

[beer401]

Hi !I am very interesting for your Diy.
I am Beer from Thailand.
I want your help. Can you send me detail for Diy it?
weera_e@hotmail.com
Sincerely Yours,
Beer

 

[jorgepease]

I'd like to get in on this. The $300 unit I had no longer works and it was limited in range. I jerked on the cord once, big rip off.