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LittleAlex 🇺🇦🇮🇱🇩🇪🇳🇴Early remotes for tellies was not using IR light or let alone Bluetooth as today. Instead it was using sounds, usually above the hearing of people, a.k.a. ultrasound. The sounds was not created elecronically but with little metal cylinders hit by a little hammer when pushed a button, just like a xylophone. Each button was connected to it's own metal rod and the metal rods was tuned to it's own frequency. A microphone in the telly received the sounds and separated the frequencies by the means of analogue filters. The according action like switching channel was also done by analogue circuits, nothing digital was used in consumer goods at this times. For instance channel tuning was done with varicaps (<a href="https://en.wikipedia.org/wiki/Varicap" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://en.wikipedia.org/wiki/Varicap</a>) and the channel settings was stored in the position of potentiometres (<a href="https://en.wikipedia.org/wiki/Potentiometer" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://en.wikipedia.org/wiki/Potentiometer</a>) providing the voltage for the varicap.<a href="https://infosec.exchange/tags/retrotech" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#retrotech</a> <a href="https://infosec.exchange/tags/oldtechnology" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#oldtechnology</a> <a href="https://infosec.exchange/tags/vintagetech" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#vintagetech</a>

Retro Librarian1983 Coleco vision Commercial . <a href="https://worldkey.io/tags/Colecovision" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Colecovision</a> <a href="https://worldkey.io/tags/tvCommercial" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#tvCommercial</a> <a href="https://worldkey.io/tags/videogames" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#videogames</a> <a href="https://worldkey.io/tags/games" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#games</a> <a href="https://worldkey.io/tags/Retro" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Retro</a> <a href="https://worldkey.io/tags/Vintage" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Vintage</a> <a href="https://worldkey.io/tags/Technology" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Technology</a> <a href="https://worldkey.io/tags/oldtechnology" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#oldtechnology</a>

Pedro FonsecaYou don't see on of these very often. Need to record DVDs? Step into my office 😂<a href="https://masto.pt/tags/oldtechnology" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#oldtechnology</a> <a href="https://masto.pt/tags/computers" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#computers</a>

Plastic Model RobotWait...I never did an <a href="https://mas.to/tags/intro" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#intro</a> post?Hello, I'm Plamobot. My interests include the following, in no particular order:<a href="https://mas.to/tags/Gunpla" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Gunpla</a> / <a href="https://mas.to/tags/Plamo" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Plamo</a> / <a href="https://mas.to/tags/ModelBuilding" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#ModelBuilding</a> <a href="https://mas.to/tags/ExtremeMetal" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#ExtremeMetal</a> / <a href="https://mas.to/tags/DungeonSynth" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#DungeonSynth</a> <a href="https://mas.to/tags/HamRadio" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#HamRadio</a> <a href="https://mas.to/tags/ProWrestling" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#ProWrestling</a> <a href="https://mas.to/tags/Scifi" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Scifi</a> <a href="https://mas.to/tags/Tokusatsu" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Tokusatsu</a> <a href="https://mas.to/tags/Reading" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Reading</a> <a href="https://mas.to/tags/Coffee" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Coffee</a> <a href="https://mas.to/tags/Clocks" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Clocks</a> <a href="https://mas.to/tags/Horror" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Horror</a> <a href="https://mas.to/tags/FormulaOne" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#FormulaOne</a> <a href="https://mas.to/tags/OldTechnology" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#OldTechnology</a> <a href="https://mas.to/tags/Sleeping" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Sleeping</a>I'm sure there are others, I'll update as needed.

Absolute Memery 🎭Have you cleaned your mouse this year? <a href="https://tribe.net/tags/Vintage" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Vintage</a> <a href="https://tribe.net/tags/OldTech" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#OldTech</a> <a href="https://tribe.net/tags/OldTechnology" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#OldTechnology</a> <a href="https://tribe.net/tags/BackInMyDay" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#BackInMyDay</a>.<a href="https://tribe.net/tags/Meme" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Meme</a> <a href="https://tribe.net/tags/Memes" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Memes</a> <a href="https://tribe.net/tags/Humour" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Humour</a> <a href="https://tribe.net/tags/Humor" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Humor</a>

Retro LibrarianBell Telephone by Western Electric, 1955 . <a href="https://worldkey.io/tags/Telephone" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Telephone</a> <a href="https://worldkey.io/tags/WesternElectric" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#WesternElectric</a> <a href="https://worldkey.io/tags/Advertisement" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Advertisement</a> <a href="https://worldkey.io/tags/OldTechnology" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#OldTechnology</a> <a href="https://worldkey.io/tags/vintage" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#vintage</a> <a href="https://worldkey.io/tags/Retro" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Retro</a>

Retro LibrarianThis whole spam issue here at Mastodon is giving me Yahoo Messenger vibes from the 2000s. . <a href="https://worldkey.io/tags/MastodonSpam" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#MastodonSpam</a> <a href="https://worldkey.io/tags/Spam" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Spam</a> <a href="https://worldkey.io/tags/Yahoo" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Yahoo</a> <a href="https://worldkey.io/tags/YahooMessenger" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#YahooMessenger</a> <a href="https://worldkey.io/tags/Chatrooms" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Chatrooms</a> <a href="https://worldkey.io/tags/oldtechnology" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#oldtechnology</a>

Plastic Model RobotWait...I never did an <a href="https://mastodon.online/tags/intro" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#intro</a> post?Hello, I'm Plamobot. My interests include the following, in no particular order:<a href="https://mastodon.online/tags/Gunpla" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Gunpla</a> / <a href="https://mastodon.online/tags/Plamo" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Plamo</a> / <a href="https://mastodon.online/tags/ModelBuilding" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#ModelBuilding</a> <a href="https://mastodon.online/tags/ExtremeMetal" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#ExtremeMetal</a> <a href="https://mastodon.online/tags/HamRadio" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#HamRadio</a> <a href="https://mastodon.online/tags/ProWrestling" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#ProWrestling</a> <a href="https://mastodon.online/tags/Scifi" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Scifi</a> <a href="https://mastodon.online/tags/Tokusatsu" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Tokusatsu</a> <a href="https://mastodon.online/tags/Reading" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Reading</a> <a href="https://mastodon.online/tags/Coffee" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Coffee</a> <a href="https://mastodon.online/tags/Clocks" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Clocks</a> <a href="https://mastodon.online/tags/Horror" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Horror</a> <a href="https://mastodon.online/tags/FormulaOne" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#FormulaOne</a> <a href="https://mastodon.online/tags/OldTechnology" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#OldTechnology</a> <a href="https://mastodon.online/tags/Sleeping" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Sleeping</a>I'm sure there are others, I'll update as needed.

Retro LibrarianThe Colorburst 300 by Kodak featuring Dick Van Dyke 1978 . <a href="https://worldkey.io/tags/DickVanDyke" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#DickVanDyke</a> <a href="https://worldkey.io/tags/Kodak" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Kodak</a> <a href="https://worldkey.io/tags/Advertisement" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Advertisement</a> <a href="https://worldkey.io/tags/Celebrity" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Celebrity</a> <a href="https://worldkey.io/tags/Cameras" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Cameras</a> <a href="https://worldkey.io/tags/Technology" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Technology</a> <a href="https://worldkey.io/tags/OldTechnology" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#OldTechnology</a> <a href="https://worldkey.io/tags/Retro" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Retro</a> <a href="https://worldkey.io/tags/Vintage" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Vintage</a>

Caz Mockett33 years ago today I started my training as a rookie Broadcast Engineer at the <a href="https://mastodon.social/tags/BBC" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#BBC</a>. Back then, most electronics were made of discrete components - like this BBC-designed rack-mount AM4/536 Video Distribution Amplifier, which I rescued from a skip when Television Centre closed in 2013. Gotta love a bit of PAL! 😂 Now I feel old… <a href="https://mastodon.social/tags/OldTechnology" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#OldTechnology</a>

Retro LibrarianWhat are you watching tonight? . Virtual Murder - Murder She Wrote - TV Guide . <a href="https://worldkey.io/tags/murdershewrote" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#murdershewrote</a> <a href="https://worldkey.io/tags/angelalansbury" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#angelalansbury</a> <a href="https://worldkey.io/tags/TVguide" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#TVguide</a> <a href="https://worldkey.io/tags/80stv" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#80stv</a> <a href="https://worldkey.io/tags/80stvseries" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#80stvseries</a> <a href="https://worldkey.io/tags/tvad" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#tvad</a> <a href="https://worldkey.io/tags/PatMorita" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#PatMorita</a> <a href="https://worldkey.io/tags/retro" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#retro</a> <a href="https://worldkey.io/tags/vintage" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#vintage</a> <a href="https://worldkey.io/tags/oldtechnology" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#oldtechnology</a> <a href="https://worldkey.io/tags/FloppyDisk" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#FloppyDisk</a> <a href="https://worldkey.io/tags/CBS" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#CBS</a>

Mark A. RaynerArcheologists at work.<a href="https://mas.to/tags/technology" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#technology</a> <a href="https://mas.to/tags/generation" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#generation</a> <a href="https://mas.to/tags/archeology" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#archeology</a> <a href="https://mas.to/tags/oldtechnology" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#oldtechnology</a> <a href="https://mas.to/tags/phone" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#phone</a> <a href="https://mas.to/tags/humor" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#humor</a> <a href="https://mas.to/tags/humour" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#humour</a> <a href="https://mas.to/tags/funny" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#funny</a>

CliffComment below with your score. Remember, it's one point for each thing that you have NOT done on this list. Tell us which of the things you've not done as well!My score: ZERO!I've done everything on this list mainly due to how old I am. 🤪 Thanks to <a href="https://mastodon.world/@bkm" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@bkm</a> for posting this as that's where I saw it first.<a href="https://allthingstech.social/tags/RetroStuff" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#RetroStuff</a> <a href="https://allthingstech.social/tags/OldTechnology" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#OldTechnology</a> <a href="https://allthingstech.social/tags/Blockbuster" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Blockbuster</a> <a href="https://allthingstech.social/tags/CD" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#CD</a> <a href="https://allthingstech.social/tags/Walkman" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Walkman</a> <a href="https://allthingstech.social/tags/VHS" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#VHS</a>

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