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Thread Tools | Display Modes |
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#1 |
Badcaps Veteran
Join Date: Mar 2012
City & State: Nuneaton Warwickshire
My Country: uk
I'm a: Hobbyist Tech
Posts: 6,394
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![]() Another great video looks a good bit of test equiptment too have
https://www.youtube.com/watch?v=0eixDdCpiO4 |
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#2 |
Solder Sloth
Join Date: Nov 2012
City & State: CO
My Country: USA
Line Voltage: 120VAC 60Hz
I'm a: Hobbyist Tech
Posts: 7,152
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![]() Just need a voltage limited 1A CC PSU (LM317?) and you can read "ohms" (which would be milliohms) directly on your 200mV scale, if you have 20mV, even better.
Trick is not to have to send 1A through your circuit... could get toasty, but if it's a short, you probably don't really care anyway... |
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#3 |
Badcaps Veteran
Join Date: Dec 2010
City & State: Alberta
My Country: Canada
Posts: 2,523
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![]() I think you'd need the compliance voltage-limited to say 0.2V to not damage anything. That pretty much rules out the LM317, have to use an op-amp and power transistor.
I also do well with a good bench multimeter reading uV, using lower currents. You inject a current and can follow the voltage drop to the high current short. Or use a thermal imaging camera. |
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#4 |
Badcaps Veteran
Join Date: Mar 2012
City & State: Nuneaton Warwickshire
My Country: uk
I'm a: Hobbyist Tech
Posts: 6,394
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#5 |
Badcaps Veteran
Join Date: Dec 2013
City & State: San Antonio
My Country: United States
Line Voltage: 120v 60hz / 240v 60hz
I'm a: Hardcore Geek
Posts: 587
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![]() I have been waiting for this to become available, but I admit, I'm starting to lose faith.
https://www.eevblog.com/forum/testge...with-display)/ |
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#6 |
Great Sage 齊天大聖
Join Date: Dec 2009
City & State: Europe
My Country: some shithole run by Israeli agents
I'm a: Professional Tech
Posts: 26,621
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![]() i already got the parts
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#7 |
Leaking Member
Join Date: Dec 2014
City & State: Atlantic Canada
My Country: Canada
Line Voltage: Ground, 0Hz
I'm a: Hobbyist Tech
Posts: 5,150
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![]() Looks like a similar idea to the Leakseeker 89, just with a display instead of a row of LEDs and sound.
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