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No they are not. They are among the best caps when you take in account the low volume/size. You often hear they are stable, low D and last a long time. But they are not resistant to over voltage. That I why I did a little test using an SMU to see the current leaking … Read more
TRIACs are strange beasts. The operate in 4 quadrants, that is most of them can. As far as I know they all can operate in 3 quadrants and some in all 4. The modes are a combination of the gate voltage polarity and the T2 voltage. T1 is referenced at ground. So T2 can be … Read more
On board of my boat I have a 12V system. To charge the laptop while on the water you can use a 12 to 230V sinewave inverter but it would be efficiënter to go from 12V direct to 19 via a boost converter. This one I build using an oldie but goldie, the 34063. But … Read more
This AVO8 is from 1972 and a mark V type. It still has all the features of the older models including a high voltage range. Besides tghat there is a button to reverse polarity. The cabinet is made out of platic and a lot less heavy compared to the older models. They made the model … Read more