Vintage Television

More help on STC T212
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Return to top of page · Post #: 16 · Written at 3:28:05 PM on 16 April 2020.
	John116 Location: Ryde, NSW Member since 29 October 2008 Member #: 370 Postcount: 105
Ian, thanks so much. More in depth would be appreciated, if you have the time.

Return to top of page · Post #: 17 · Written at 3:59:11 PM on 16 April 2020.
	Ian Robertson Location: Belrose, NSW Member since 31 December 2015 Member #: 1844 Postcount: 2476
I'll need some diagrams. Leave it with me for a bit. One way of thinking about it is this: If you've worked with old radios you may have seen tone control circuits that work in the negative feedback path, that reduce the feedback at lower frequencies so as to boost the bass response from a small speaker. Their effect is to distort the waveform so as to compensate for the deficiencies of the speaker. Same here. You need to change the shape of the final waveform to compensate for the inductance of the deflection yoke.

Return to top of page · Post #: 18 · Written at 4:21:35 PM on 16 April 2020.
	John116 Location: Ryde, NSW Member since 29 October 2008 Member #: 370 Postcount: 105
Thank you, much appreciated. I understand what you describe in regards to radio tone controls.

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