Inferior Diodes to beware of for 2 dollar radiation detectors.
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- Опубліковано 7 чер 2023
- In this video I demonstrate the problem you may run into when buying aftermarket parts that don't perform as the original parts do. In this demo I show how a diode labeled 1SS86 is inferior to the same diode made by Hitachi, and why it helps to buy parts from a reputable parts distributor.. If you are looking to buy this particular part, take note of the letter H on this diode. Indicating this 1SS86 diode is made by Hitachi. Thanks to a viewer I've learned of another diode that worked fairly well for this project. Its part number is 1N5711
Here is a link to the first video I made on this project. • 2 Dollar Radiation Det...
Here is a link to a spec sheet on the diode made by Hitachi. pdf1.alldatasheet.com/datashe...
I got recommended a short video about this. Nice to see you have a longer video about this as well.
What this kind of geminds me of is the little domed stickers you could stick on your cell phone back in the day, with LEDs that would flash when you were being called.
I am interested to building some of your examples myself.
Reminds me somewhat why a curve tracer can be handy and maybe the cheapo LCR T4 tester will tell enough regarding quality. Great info!
Thanks, Dave. I started buying components only from reputable sources a long time ago. Usually only from DigiKey and Mouser.
Digikey has been one of my favorites. They seem to be real cautious about the parts they sell.
@@GrantsPassTVRepair Yep. DigiKey has fast shipping also. I live less than 40 miles from Mouser and DigiKey orders will arrive faster than Mouser orders. LOL!
I tried finding these diodes when you originally posted this video with no luck. If anyone has a lead on these would you post it? I checked digikey I find detector diodes but not the same brand or part# thanks
@@rksg2003 I have a few left from a previous order I made on ebay, but I've also wondered about a reliable source to get the real ones. I hope someone out here may know where to find them.
@@GrantsPassTVRepair , this type of diode is obsolete.
There's enough current to light an automitve incandescent bulb if you are close enough to a transmitter in the 10-20watt range.
It seems like this technique can be used to initiate faults for side channel attacks without a physical connection to the target device. I don't have the EE experience to come up with something, if you are looking for video ideas that would be a good one.
yea, i could see where that could be a problem. never know sometimes what your getting now. 🤨
Do you have a link to the calculator you used to find the antenna length or what formula you used?
Try to google dipole antenna calculator, but for more detail on the lengths check out this video. ua-cam.com/video/vHVmJ5lD9jc/v-deo.html
I remember years ago buying an FM wireless mic kit with a special hi-Q transistor. "What's hi-Q?" sez I.
Put it on my transistor tester.
WOW.
So you talked about fake ones, just where do YOU buy them to insure they are not fake?
I found some on ebay, and the sellers generally show them with an H on them, or they mention they are selling the original Hitachi diodes.
For me the 1n5711 diode is working and it's much cheaper
Thanks for this information. Have you tried it on cell phones, wifi modems or microwave ovens?
I have tried with phones and modems.
I've got so many knock-off components, but I only played around with low power audio amps and pre-amps. So it's no big deal if a capacitor, resistor or a transistor is a bit ot of spec.