Do you forget to connect power and or probes, and then wonder whats wrong ?

[lordvader88]

All too often I'll forget to re-connect a ground wire to something, and then wonder....now whats wrong

Reminds me off forgetfulness...like forgetting to take the cap off the camera, or opening a window before shooting

[Electro Detective]

Overconfidence ? 

in a hurry for circuit satisfaction (aka please work!  ),

in a big hurry to finish and move on to the next project,

too many drinks last night,

a poor memory or needs a defrag,

the phone rings...    

Distracted by noisy irritated Saturnians    dumping crashed Cassini parts in the driveway



Welcome to 'what's wrong?' Snafu in electronics   

[Assafl]

I have the solution.

Build a really good power amplifier. Using the expensive Motorola output devices. Given the carelessness, you'll fry the output devices.

Buy new ones, fry them again.

Pretty soon you'll start paying attention.

[bd139]

Regularly! I spent half an hour last night trying to work out why my filter's insertion loss was -40dB rather than the expected -0.5dB. Turns out I had connected the breadboard's -V to the earth binding post rather than the negative one on the power supply. The entire signal was coming via the feedback loop hence the fact it was actually registering something. The power consumption of the circuit is so little that it doesn't register on my bench supply's current meter.