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I try to create a mask on my agilent 3024A oscilloscope ,from the manu it says press the analyze key than select mask,than press create mask ,but my oscilloscope only show this selection ,how do I create mask?
I saw in YouTube that some have wearing glove for safety issue to protect from electrical shock,it looks like linens,I had purchased few but are are thick rubber of leather glove which is mostly for high voltage main line installation use,can anyone recommend some brand for me that are...
Yes,the working voltage is 12VDC,from a SLA battery,here are no alternating wave form from the circuit,all are DC operation,the circuit is to control a set of 12V LED light that I'm planning to install around my house,the light will only turn on for about 10 second when ts dark and sense...
I'm using a Digimess HUC3100 LCR meter to measure both the capacitor and the resistors,all component are ordered from RS components,which I believe it should be in its stated tolerance ,even if the meter is with a accuracy of +_ 10%,the time constant should not be of by 6 second,anout 400%...
Sorry I had forgotten to mention,both capacitor capacitance are the same ,value of 10uF with a voltage rating of 10uF,except that the ceramics is a non polarized 50V capacitor and the electrolytic capacitor is a 16V polarized capacitor
I uses a 10uF electrolytic capacitor on a bread boar to test the circuit,the diagram shows part of the circuit with act as a timer circuit when the opamp goes high,when voltage from the charging capacitor is fed to a OpAmp voltage follower,and to other part of the circuit.
when I use a...
I need a isolation Variac,can this works
I need a isolated Variac but can't find it locally,I can only find normal variac that are not isolated from the main,can I couple two transformer of primary 230,secondary 115 together and the variac get the power from the couple transformer
I would like to add a constant current sink to my next amplifier project,current mirror seems to be a good choice,but I have no experience on this,so doing some experiment and try to familiar with it first,is just a experiment,trying to learn something from it.
I did a current mirror experiment with the simple setup,both Q1 and Q2 are MPSA42,the result are satisfying
but when I connect another BJT to the setup,result are all ways off
I2 varies according to the Ib and correspond to the beta of the BJT,did I do anything wrong?Or I have to use PNP for...
I try to figure out how to I calculate the resistance of a constant current source,I am using a LED as a voltage reference to control the voltage,Iam tring to calculate the gain of a common emitter amplifier,I know that the gain is RL/(RE+re),but how I know the value of RL if i am using a...
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