--- title: An ex-Sega engineer made a CRT emulator so realistic,... description: An ex-Sega engineer known as GOROman built a macOS Famicom (NES) emulator that captures the VHF RF output from a real Famicom console via a HackRF One Software... canonical: https://daily.dev/posts/an-ex-sega-engineer-made-a-crt-emulator-so-realistic-you-can-hit-it-to-fix-visual-problems-jndrvfuvm twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: An ex-Sega engineer made a CRT emulator so realistic, you can hit it to fix visual problems | daily.dev og:description: An ex-Sega engineer known as GOROman built a macOS Famicom (NES) emulator that captures the VHF RF output from a real Famicom console via a HackRF One Software... og:url: https://daily.dev/posts/an-ex-sega-engineer-made-a-crt-emulator-so-realistic-you-can-hit-it-to-fix-visual-problems-jndrvfuvm og:image: https://api.daily.dev/og/posts/jndrVfUVm.png og:image:alt: An ex-Sega engineer made a CRT emulator so realistic, you can hit it to fix visual problems og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # An ex-Sega engineer made a CRT emulator so realistic, you can hit it to fix visual problems **[XDA Developers](https://daily.dev/sources/xda-developers)** · 2 min read · 0 upvotes · 0 comments ## Summary An ex-Sega engineer known as GOROman built a macOS Famicom (NES) emulator that captures the VHF RF output from a real Famicom console via a HackRF One Software Defined Radio and renders it with realistic CRT TV visual effects. Taking nostalgia a step further, the emulator also listens via microphone for the sound of someone physically hitting the top of the monitor, then corrects visual glitches in response — recreating the classic 'percussive maintenance' experience of 1990s CRT televisions. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [This beautiful browser-based Game Boy emulator perfectly replicates how games looked back then](https://daily.dev/posts/this-beautiful-browser-based-game-boy-emulator-perfectly-replicates-how-games-looked-back-then-xqip0sjj8) · XDA Developers · 0 upvotes · 0 comments - [Developer Is Building Engine for Retro Games](https://daily.dev/posts/developer-is-building-engine-for-retro-games-11nprbzos) · 80 LEVEL · 0 upvotes · 0 comments - [CGA As You Have Never Seen It Before](https://daily.dev/posts/cga-as-you-have-never-seen-it-before-r6avp03zo) · Hackaday · 0 upvotes · 0 comments - [Forget hunting for working CRTs, this is how I nailed the retro look for my emulation catalog](https://daily.dev/posts/forget-hunting-for-working-crts-this-is-how-i-nailed-the-retro-look-for-my-emulation-catalog-nexpkvwwh) · XDA Developers · 0 upvotes · 0 comments - [60fps Video on a CGA?](https://daily.dev/posts/60fps-video-on-a-cga--6dmcdlx1s) · Two Stop Bits · 0 upvotes · 0 comments --- Tags: [#mac](https://daily.dev/tags/mac) [View this post on daily.dev](https://daily.dev/posts/an-ex-sega-engineer-made-a-crt-emulator-so-realistic-you-can-hit-it-to-fix-visual-problems-jndrvfuvm) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"An ex-Sega engineer made a CRT emulator so realistic, you can hit it to fix visual problems","url":"https://daily.dev/posts/an-ex-sega-engineer-made-a-crt-emulator-so-realistic-you-can-hit-it-to-fix-visual-problems-jndrvfuvm","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/an-ex-sega-engineer-made-a-crt-emulator-so-realistic-you-can-hit-it-to-fix-visual-problems-jndrvfuvm"},"datePublished":"2026-07-17T04:17:47.172Z","dateModified":"2026-07-17T04:18:07.540Z","description":"An ex-Sega engineer known as GOROman built a macOS Famicom (NES) emulator that captures the VHF RF output from a real Famicom console via a HackRF One Software...","image":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/7f330be334223ec4b4762b311fdbdf0a?_a=AQAEuop","thumbnailUrl":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/7f330be334223ec4b4762b311fdbdf0a?_a=AQAEuop","isAccessibleForFree":true,"articleSection":"XDA Developers","inLanguage":"en","publisher":{"@type":"Organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180}},"author":{"@type":"Organization","name":"XDA Developers","logo":"https://media.daily.dev/image/upload/s--kCg6yyAP--/f_auto,q_auto/v1774964407/logos/xda-developers?_a=BAMAMiWQ0","url":"https://daily.dev/sources/xda-developers"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/an-ex-sega-engineer-made-a-crt-emulator-so-realistic-you-can-hit-it-to-fix-visual-problems-jndrvfuvm","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":0},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"mac","timeRequired":"PT2M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"XDA Developers","item":"https://daily.dev/sources/xda-developers"},{"@type":"ListItem","position":3,"name":"An ex-Sega engineer made a CRT emulator so realistic, you can hit it to fix visual problems"}]} ```