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by EvanAnderson
398 days ago
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Oh, yeah. 15 kHz whine from NTSC CRTs did used to be a thing for me. Eventually I lost that range of my hearing. A few years ago I fired-up a 15 kHz monitor for my Apple II and my then 5 y/o daughter held her ears and complained that there was a terrible screeching sound that hurt her ears. Between losing the top-end of my hearing with age and the end of CRTs being mainstream display technology I'd forgotten about tube whine. |
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https://en.wikipedia.org/wiki/Flyback_transformer