Since I am new to this, I have to ask what high frequencies are suppose to be. I mean, will 200khz be considered high frequency?, or when should I begin to see issues regarding high frequencies?
I hope to get frequencies in the MHz area, at a later time, when not using the 556 timer anymore, and if the breadboard is insufficient for even a couple of hundreds kHz, I can already see other problems. Just to know when I need to start solder everything to prints.