Archive for the ‘Measurement, environment’ Category:

2017-08-20 Measuring Very Low Resistance 

From my FB comment  Some comments say measure with a meter, but fractional ohm resistors don’t measure, or barely measure with the typical ohmmeter.   Instead, you should be giving better advice.  You should use the device between your ears to find the resistance. The resistor should be put in series with another resistor of

(Read More…)

2017-08-19 Emitter Base Breakdown Can Damage Transistor 

From YT reply to Neilgn  2017-08-20 Take any NPN transistor and measure the gain, and write it down.  Then put a 1k resistor in series with the transistor’s emitter and connect the emitter to positive and base to negative of a power supply.  Adjust the voltage until 2 or 3 volts are across the 1k

(Read More…)

2016-03-22 Thermo- and Barometer, Arduino Nano

My blog was down for a few days. The hosting svc had to consolidate its IP blocks and give some back to the RAR, so my rustybolt.info was pointing to the wrong IP. I was looking out the patio door at the radiometer on the table outside, watching it spinning like crazy in the really

(Read More…)

© RustyBolt.Info/wordpress
CyberChimps