Given that replacing the caps didn’t take too long and there was a 2nd dead IPX, the decision was made to proceed to re-cap its power supply. This was in a much better state, without electrolyte on the top of the PCB and with no corrosion on the underside.
*/1 * * * * ~/start-frpc.sh ~/check-frpc.log
。关于这个话题，新收录的资料提供了深入分析
理论上，它可以格式化你的硬盘。
In 12-TET, you divide up the octave into twelve equally-sized semitones (the interval between two adjacent piano keys or guitar frets). To go up a semitone from any note, you multiply its frequency by the 12th root of 2 (about 1.05946). To go down a semitone from any note, you divide its frequency by the 12th root of 2. If you go up by an octave (twelve semitones), you’re multiplying your frequency by the 12th root of 2 twelve times, which works out to 2. That’s a perfect octave, hooray! Unfortunately, you can’t exactly create the other harmonics-based intervals by adding up 12-TET semitones; you can only approximate them.