StephenvJ
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StephenvJ 18/07/2020
I don't think this unit is super accurate... placed it in the refrigerator for a while and temperature did not go all the way down (or moved very slowly), but it seems to be within a degree or two of other units I have. Humidity seems to be within 3% or 4% around the middle of the range which is close enough for me. Barometric pressure has either been super stable here for the last two days or the meter is stuck - I'll keep an eye on it. It's very pretty though - at this price, I think it is a good deal for such a good looking meter, even if it is slightly off.
Termômetro de parede suspenso de ouro 3 EM 1: barômetro, pressão, higrômetro
US$21.95 US$21.00
1
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StephenvJ 29/07/2020
This is awesome. See some people received theirs without the bus bar, but mine came with bus bar and works fine. Awesome meter, especially for vintage looking projects or restorations. Both thumbs up.
62C2 Rodada Analógica Amp Panel Meter Amperímetro Atual DC 0-50A Com Shunt
US$16.16 US$16.99
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StephenvJ 21/07/2020
I bought a pack of 10... turns out 2 of them are super stiff and 1 seems to not toggle, but that could be due to rough handling during shipping. Even with some quality issues, if 7 of the 10 work fine, that's still a good price. Love these switches - use them in almost all my projects.
10pcs SPDT 3 Pins Toggle Switch AC 125V 6A ON / ON 2 Posição
US$10.38 US$10.99
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Faça você mesmo QRP Pixie Kit receptor transmissor CW Rádio de ondas curtas de 7,023 MHz
US$4.99 US$11.99

Q: I have buy 3 sets of it. Its a nice thing! ........But there is a problem!!! ......The first set blow up after pussing the key for seconds. I was very hard Crying :-(((. And aks meself whats was going on?? ??? Dit I do something wrong??? But after a night of bad sleeping :-)). I have it. !!!!! That it blow up is correct i mean.! While there is no limited resistor in the emitter or collector of the 8050 TX transistor. Or something like that. When you pushed the key, the 8050 emitter is connected to the ground (0 volt) and the collector to the +12 volt. The coil Li , 22uH, has no DC resistor function. So the current trhough this transistor has no limit and grow up to the point that de 8050 blow up!! That means ....You can use this unit only when you have a high morse speed... i think..... and i dont have that :-( . How can we solve this problem? A resitor in the emitter of the 8050 so that there is a current limit??? Please a reaction from Banggood or who????

perguntado por Piet sobre 2020-03-20 02:51:56

StephenvJ Didyou have it plugged into an antenna with sufficiently low SWR or a 50 ohm dummy-load ? If you press the key and there is nowhere for the signal to go, it will blow up after a few seconds, even though it is just a few milli Watts of output power - very important to send the signal into a 50 ohm load.

2020-07-18 12:19:49 Útil (0)
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