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Neat tutorial.
Another sumpthin' that would make for great discussion is - how the H and V sawtooth sweep waveforms are actually generated and appear across the yoke windings.
It's easy to visualize how a neon bulb (or gas-discharge tube) relaxation oscillator generates a sawtooth (like for H sweep in very old 'scopes). But it's a bit more esoteric in TV sets.
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