之前一直在懷疑 FT-991A 的 VHF/UHF Power Amplifier 部分為什麼可以只使用一個電晶體 (RD70HUF2),直到我剛剛反應過來這玩意其實是兩顆 MOSFET 合在一起。

I bought a USBasp SPI Programmer, seems it's way better than using an Arduino Nano (Faster, and more reliable)

Just find out that my DIY linear regulator has a large voltage difference between with or without a load. Seems there's a huge room for improvement.

My own joule thief is running for 72 hours, It's now flashing

Couldn't get a AT89S52 work with Arduino Nano (as ISP), the crystal oscillator generated no signal, XTAL1 gives a strange DC voltage.
#8051

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