BD4UIN I originally bought something on Xianyu USDX for around 300 yuan last year. I also recently posted a used item on hamcq. I gave BG8LWC I discovered that the actual power was less than 0.1W! I'm actually crying.😭😭😭 The merchant directly applied lubricant to their feet. However, listening to it is perfectly fine. According to Mr. Ham, it was the triode that malfunctioned. Who do you think will fix it? Sold for 150. Requesting blood.
BH3PTS If the amplifier MOSFET tubes are damaged, replacing them with three BS170s will cost a few dollars. I am not responsible for any other issues; I'm just an observer.
BD3ROR 🤣Don't try to modify it; give it to local QRP enthusiasts who are already experienced and enjoy using 0.1W equipment.
BD3OZV [未知用户] Could I also have one? If it's still available, I'd like to purchase it directly through the link on Craigslist.
BI4MIG [未知用户] I'm curious about how you discovered that the power was 0.1W. How did you determine this?
BG5ELQ [未知用户] As can be seen from the graph, while this method uses an oscilloscope, it's generally not the preferred way to measure.
BI4MIG [未知用户] Okay, I don't understand. I never took the "Electrical and Electronic Engineering" course in high school. My senior told me that it was a difficult course with lots of experiments and required writing lab reports. My current knowledge is still at the high school level. Sigh...
BG8LWC After taking it apart, I found that glue had been used to fix the coil to the board, and it had spread to the BS170 component. Since there was no suitable method for removing the glue, I chose not to replace the BS170 myself.
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