A few days ago, I posted about 27MHZ frequency measurement. Forum friends were very enthusiastic and gave various solutions. After checking the parameters, I found a problem: the period corresponding
The 2006 World Cup in Germany is in full swing. To facilitate fans to enter the 12 World Cup venues safely and watch the games with peace of mind, FIFA has partnered with Philips to provide the most a
[i=s]This post was last edited by nanasong on 2022-8-4 16:18[/i]Could you please tell me what is the use of the series resistor between the input and output of the inverter? The input signal is a 100M