Wow! It just clips onto the HV cable and recharges while it’s hanging there. Presumably the drone has an inductive pickup coil that’s up against the conductor that’s carrying hundreds of amps. I bet Joe Tegtmeyer would like to have one of these! https://www.facebook.com/interestingengineering/videos/1123581112297321/?mibextid=NnVzG8 https://www.facebook.com/reel/415716777728231?mibextid=9drbnH&s=yWDuG2&fs=e
Archive for the ‘Transformers’ Category:
2024-03-12 Keeping The Grid In Balance
At the end he said “… keeping the grid in balance with millions of tons of spinning inertia.” Well, this is now being simulated by the electronics in the battery energy storage systems and other electronics. It’s called VMM – virtual machine mode. Soon, there will be very few thermal power plants left after all
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2020-02-14 Zenith Royal 400 S/N Z551549 Replaced Capacitors, Driver Transformer
Zenith Royal 400 s/n Z551549 I soldered broken orange wire to battery holder. Replaced all four electrolytic capacitors. Silent speaker and nothing from earphone jack. I checked the voltage at the collector of the driver transistor, it was zero. One pin of the driver transformer primary measures 5.8 V, the other pin measured 0. Checked,
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2018-04-03 Transformers in Series Parallel
For FB group Building Transistor Radios This is the idea that I had about using more than one transformer to connect their windings in series or parallel to get a higher impedance and a higher stepdown ratio. My idea was to be applied to the Bogen T725 line matching transformer, but it could be applied
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2017-06-25 Mini Audio Transformer From Goldmine Electronics
I bought several of these miniature audio transformers from Electronic Goldmine. They are encapsulated so I can’t see anything, windings, core or materials. There are 5 pins, 2 on one side and 3 on the other, but the center pin measured open, so it’s apparently there to make sure the transformer is inserted the right way. The
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2017-06-15 Capacitor Leakage Tester Ideas
I was asking about very old capacitors and their shelf life on FB vintage test equipment group. The guys tell how good the old capacitor testers are because they have the “magic eye” to check for leakage. I was thinking that it would be easy to test any capacitor for leakage. All that’s needed is
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2016-09-20 tbd
from a comment I added to this YouTube video https://youtu.be/GCh2LVHUavQ The main difference between a power transformer and an audio transformer is the way the E and I laminations of the core are arranged. The power transformer has an E on the left and I on the right of the first layer, then an I
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