I guess what I'm looking for is some education regarding the horizontal circuitry in the KCS 47 and what all these things do and how they do it. In this one circuit there's a horizontal frequency, horizontal drive, horizontal waveform, horizontal linearity and width adjustments plus the horizontal hold control not shown here. So the 6SN7 puts out the oscillating frequency that's tuned to 15.75 Kc by the adjustable coil for horizontal frequency. That's a sawtooth shaped wave right? It's modified to a double peaked wave where the waveform adjustment lets you tune that shape to where those two peaks are of equal amplitude correct? I guess I'll stop there and try to figure out how this all happens and why. I know only very, very basic vacuum tube operating theory. The tube produces the oscillating waveform that comes out as a sawtooth. The oscillation comes out of the plate, goes through the coil and back to the screen to do what, set the on/off timing of the screen gating the electrons from the cathode to the plate? What is the 180pF capacitor doing for this? I guess what I'm asking is how does this loop produce the 15.75Kc oscillating frequency and keep it stable???
Really admitting my ignorance here but, believe it or not, I am a scientist/biologist professor and I need to know how things work at the most basic origins. Electricity absolutely baffles me. It took a lot of explaining to get me to understand how AC works when there's no net movement of electrons in the wire!!!!!
10-17-2025, 10:59 AM
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