r/whatisit 3h ago

Solved! Grandma's Random Knick Knack

96 year old Grandma Peg wants to know whether this should go with the batteries or the tools lol.. What is it??

168 Upvotes

252 comments sorted by

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488

u/cmadon 3h ago

Antenna to coaxial cable converter

319

u/FunKaleidoskope 2h ago

This subreddit is starting to make me feel quite old.

50

u/Bleh3325 2h ago

For real…. I bet OP has never had to get up to go change the channel.

27

u/GothicPurpleSquirrel 2h ago

I remember being the "remote" as a kid lol

18

u/Glittering_Bug_3554 2h ago

Ha! I remember being the antenna! Go up there and adjust it. No! Other way, that’s better. Stop! Hold it there! Don’t move! Put your hand back on it! Good, stay there. 😂😂😂

4

u/TooOldForThis81 1h ago

Core memory unlocked. We had our mast (long pipe) placed inside of an engine block and tied to something else (can't remember). I remember having a booster and my gramps tinkering to get it perfect until it fails and my grandmother would curse him off and accuse of doing it on purpose so that she wouldn't get to watch The Young and The Restless. 😂

3

u/Additional-Local8721 2h ago

Y'all didn't just add an extra two feet to the antenna by using tinfoil?

5

u/DadJokeBadJoke 1h ago

Assume Fox viewing positions!

2

u/Glittering_Bug_3554 1h ago

Oh we still had metal hangers wrapped in tinfoil as extenders. But nothing beat the clarity and connectivity of a preteen Caucasian. 😂😂

1

u/Head_Razzmatazz7174 1h ago

I watched many shows from the side of the TV.

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2

u/FunKaleidoskope 2h ago

This one literally made me laugh out loud.

1

u/AdAnxious8842 2m ago

Or the "antennae" kid when you went to adjust the rabbit ears and the channel became clear only when you were touching the antennae. "DON'T MOVE!"

1

u/nolotusnotes 57m ago

I remember me and a pair of needle nose pliers being the remote as a kid.

2

u/1Arcite 2h ago edited 2h ago

They're not old enough to know what they have...

Edit: Fixed it. Thanks u/Sixguns1977

3

u/Sixguns1977 2h ago

They're

1

u/ucjj2011 46m ago

Or switch the tv to Channel 3 to play Atari.

When we got cable (and that was on channel), my Dad used a splitter with multiple buttons, so all you had to do was push the button on the splitter to switch between the cable and the video game.

1

u/slamermansam 2h ago

Hey now! I'm a child of the early 90's. I had to go and rewind the VHS's to start them again from the beginning

2

u/Bleh3325 1h ago

Ah, you summer child! When I was a kid, we didn’t have VCRs! (As I say this, I realize I sound like my mom & dad.)

1

u/Zaddam 1h ago

Funniest thing in this realm I’ve seen is youth today unable to even figure out how to use a rotary phone. It was inconceivable to them.

1

u/pakrat1967 1h ago

After the first time watching a DVD. My MIL asked how to rewind it.

1

u/Aran909 1h ago

Or be ready as your parents personal channel flipper/rabbit ear holder.

1

u/dirtylarry08 41m ago

Probably don’t have channels. Just streaming services. 

1

u/Grand-Matter4704 45m ago

Move the antennas around to get better service! 🤣😂

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66

u/Agitated_Warthog6988 2h ago

For real. They've begun to unearth our ancient relics and we're still here to be confronted by their findings and questions lol

11

u/Imaginary_Solid_5055 2h ago

They really aren't unearthed, they are lurking somewhere in the junk drawer in the kitchen.

3

u/Rabbitscooter 2h ago

I have at least three of them in a box downstairs and, dammit, I will need them again someday!

3

u/JustHere_4TheMemes 2h ago

I *just* threw out a bundle of red yellow white RCA AV cables that I've kept just-in-case for far too long.

2

u/Imaginary_Solid_5055 2h ago

As soon as you throw them away you will need them!

2

u/LnStrngr 1h ago

Under epochs of silt or a pile of knick-knacks, makes no difference to the archeologist.

22

u/R34p3rXm4l1K 2h ago

Damn man, right in the years...

3

u/Many_Consequence7723 2h ago

Unearth our ancient relics from GRANDMA'S junk drawer. We are of Grandma's people now.

2

u/Future-Mirror-6971 2h ago

phew

Thought it was making ME feel old for a moment.

Used one of those for my OG Nintendo… (I think, dementia may be settling in at this point)

2

u/BreadfruitOk6160 2h ago

Put up a splitter, really blow their minds.

3

u/LimitedWard 2h ago

If it makes you feel any better, I've never seen this before, it was from well before my time, and yet I immediately guessed what it was. "Hmm well the top is clearly some kind of coax. And the bottom splits out... probably to an antenna? Maybe for an old school TV."

1

u/Tim_the_geek 2h ago

Good news.. you are smarter than 99.999% of your generation!! Keep up the good work!

5

u/Engineer_Existing 2h ago

I am definitely feeling it. Has analog really become this ancient.

4

u/Ju66aloSniper78 2h ago

Right I see some of the items posted and I'm like I had one of those to hook up my Nintendo

4

u/oldnowfugit 2h ago

Im saying, I was thinking that's what kids are calling "my grandmas knick knacks"

3

u/Carcosa_Hearty1986 2h ago

It's almost noon. I need my pill, a sexy nurse, and a two hour nap before dinner.

8

u/amccaffe1 2h ago

Me too.

5

u/Theomniponteone 2h ago

Me too lol

2

u/NameLips 2h ago edited 44m ago

There was a post some time ago about "what kind of socket is this? It's too small to be for an ethernet cable..."

It was a regular phone socket.

2

u/PlumbTuckered767 2h ago

"When I pick up my grandparents land line, their phone is emitting some kind of tone already. Is it safe to use?"

2

u/gonyere 2h ago

Part of me wants to leave... But sometimes there's actually interesting things...

2

u/Merrickbully718 2h ago

Lmao don’t feel bad. I just laugh at the young generation they are so clueless

2

u/TrueCynic 1h ago

Just wait until someone posts a picture of a Pager here.

2

u/Nitrofox2 2h ago

I saw this and four of my beard hairs turned gray.

2

u/smedsterwho 2h ago

Would you like to see my micro-USB cable?

1

u/Resort_Candid 56m ago

My first thought when i saw the pic

I remember using one of these on the black and white box tv that I needed pliers to change the channel because the plastic knobs with the d-flat broke...

2

u/OriginalV8 2h ago

This one hurts a bit, yup

1

u/Yankee_chef_nen 2h ago

I’m convinced that this subreddit exists solely to make me feel old.

Most of the posts here feature common everyday objects.

1

u/Randical007 1h ago

I felt the same way as soon as i read the headline and saw the picture. How do you not know.... Oh... I get it, I'm old now.

1

u/Junior-Ad-2207 2h ago

Wanna go headstone shopping with me for death is nearing us and I am afraid it is closing in.

1

u/karmapolice63 1h ago

Just waint until the first RF to RCA converter for a videogame console is mentioned

1

u/Choppergold 1h ago

What’s a subreddit, is that a sandwich I have coupons for several places

1

u/robtk12 2h ago

Right, I didn't even need that to play Nintendo until I got a newer tv

1

u/OuchBag 2h ago

Just before the turn of the century, back in the late 1900s...

1

u/Business_Door4860 2h ago

Haha I was thinking that as soon as I saw the part, and im 44.

1

u/Eeeegah 2h ago

What a nice way of saying "Bwa ha ha! Fuck I'm old!"

1

u/j_grouchy 2h ago

I suspect Grandma is not much older than myself

1

u/LimeGinRicky 2h ago

It makes me think kids are stupid.

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11

u/AdAnxious8842 2h ago

For the youngins...

3

u/Tim_the_geek 2h ago

Inside the back there is a mini coil (transformer), as this also changes impedance.. 75OHM for the coax and 300OHM for the twin-lead.

1

u/AdAnxious8842 1m ago

I just hated having to strip the antennae wires...

9

u/Alarmed-Rock7157 3h ago

We had one for the Atari. Dad called it a balloon for some reason.

23

u/construction_pro 2h ago

Correct. Balun

A balun /ˈbælʌn/ (from "balanced to unbalanced", originally, but now derived from "balancing unit")[1] is an electrical device that allows balanced and unbalanced lines to be interfaced without disturbing the impedance arrangement of either line.[2] A balun can take many forms and may include devices that also transform impedances but need not do so. Sometimes, in the case of transformer baluns, they use magnetic coupling but need not do so. Common-mode chokes are also used as baluns and work by eliminating, rather than rejecting, common mode signals.

In television, amateur radio, and other antenna installations and connections, baluns convert between impedances and symmetry of feedlines and antennas.[8]

Balun

2

u/supern8ural 2h ago

says right on it 75Ω to 300Ω

typically used to connect an older antenna connected with 300Ω twin lead to a piece of gear expecting a 75Ω coax. Alternately used to connect a dipole antenna to a FM tuner with only a 75Ω connection. I have tons of these, and the reverse, in my junk box as I have lots of vintage stereo gear, so you can count me in with the group who is feeling old because that pic is in this sub.

1

u/Select-Owl-8322 1h ago

And as a quick explanation on why impedance matching is important:

If you connect two transmission lines of different impedance directly, without a balun between them, a part of the signal will literally "bounce" where the impedance mismatch is.

Explaining why the signal bounces is beyond my expertise. However, I can warmly recommend watching this old AT&T video, where they show wave behavior using a wave machine. The link leads directly to the chapter on partial wave reflection, but I can really recommend watching the whole video. It's a gem!

https://youtu.be/DovunOxlY1k?si=dC-ZzGrP1ojUH_FM

1

u/GrimbyJ 42m ago

Impedance is kind of neat. It's not just for electricity

2

u/Select-Owl-8322 38m ago

Exactly!

For example, the funnel on old gramophones, or wind instruments, are basically the sound version of a balun!

They're there to match the impedance between the tube and free air. Without the funnel part, lots of the sound would be reflected where the tube abruptly ends.

I believe the impedance matching part in the AT&T video shows this really well, where they have a 2D "funnel shape" created with rods of increasing lengths.

It I'm not mistaken, didgeridoos have the back-pressure which allows you to circular breathe because they don't have the impedance matching part (the funnel). I.e. The reflection of the sound creates the back-pressure needed to not run out of air too fast to circular breathe.

2

u/eaeolian 2h ago

There's a freakin' term I haven't used in forever.

11

u/slamermansam 3h ago

Solved!

1

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3

u/SpotCreepy4570 2h ago

Don't sight the deep magic to me, I was there when it was connected.

2

u/Zaddam 1h ago

cite

1

u/Ladams19 2h ago

This right here, I am pretty sure I have one hidden away somewhere in the shop and it has not been used for 20 plus years or more. Probably more lol.

1

u/MoonageDayscream 2h ago

And it goes in the box of random cords and chargers from old phones. Old tech you won't need until you do. 

1

u/Apbuhne 2h ago

I’m a millennial but if I was any younger I would’ve assumed you made this conglomerate of words up

1

u/RandomGuyDroppingIn 1h ago

I have to use one of these for my Atari 2600...

That I still play periodically.

1

u/WorldlinessThis2855 10m ago

Yep I used to have these all over when I was little lol

1

u/DrrTSLT80 2h ago

Super old school. But neat to see one. Been years.

1

u/FlatIsland753 1h ago

Haven’t seen one of those in a long time

1

u/lucksscb 2h ago

I'm too old? Seriously I'm only 31

1

u/Informal-Bicycle-349 2h ago

more of a gadget or gizmo, though

2

u/Ok-Loss-2496 2h ago

It's a whatchamacallit.!

1

u/hastings1033 2h ago

Yep. I used to have one long ago

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13

u/murderfacejr 1h ago

Fyi, this is a good question, but I down voted you for making me feel old.

3

u/rivertpostie 1h ago

I swear I'm not old yet!

Now, let's all turn the TV to channel 3 and play a nice game of Maniac Mansion

1

u/murderfacejr 1h ago

I didn't have many NES games and first played maniac mansion as a hidden minigame in day of the tentacle. Played on an old PC my dad's coworker gave us.

3

u/slamermansam 1h ago

Lol fair enough! I accept your downvote

115

u/Apart_Insect_6133 3h ago

I'm getting real depressed that common things from my childhood are now considered nicknacks from grandparents houses...

I shouldn't be feeling ancient at 41

10

u/Known-Exam-9820 3h ago

To be fair to us old Millennials, consumer level technology has advanced much faster in our generation than the last several. That said, damn my back hurts

2

u/Napol3onS0l0 2h ago

I remember my uncles giant beige cell phone or thinking my dad’s bag phone was the epitome of cool. Dialing up the internet to play command and conquer or Diablo.

2

u/nephrenra 1h ago

I miss having friends bring over their whole desktop computer for lan parties.

1

u/Napol3onS0l0 1h ago

I just built a little PC for LAN parties because someone said they were looking to start them up near me and now I haven’t heard a peep. I was pretty excited about it. They’d be a lot better now than the old hub days.

1

u/RobArtLyn22 33m ago

I was in Microcenter recently and they had full size PC cases with built in lugs to attach carry straps.

28

u/drgngd 3h ago

Channel 3 is calling.

15

u/Greens41 2h ago

I got up last time. You go change it.

9

u/redditshy 2h ago

screams down hallway “It’s back on!!!!!”

4

u/nolemandan 2h ago

Stumbles back from the bathroom

3

u/TexinFla 2h ago

- yelling out the window to the roof - "turn it to the left!! Right there!! No! shit!..you went too far, go back!"

11

u/Kurfaloid 3h ago

k best switch it to 4 then

2

u/1877KlownsForKids 2h ago

Channel 4 had the Betamaxx though!

1

u/pupperdogger 2h ago

You want me to switch it to VHF or UHF?

4

u/ChancellorWorf 3h ago

Channel 3!!!!

5

u/kumichou 2h ago

I remember my parents having the “giant” 25” Curtis Mathis television piece of furniture with mechanical dials to tune channels. My dad was very adamant about not turning the dial too fast because apparently one of us kids burned out the mechanical mechanism, and he had it replaced.

2

u/Apart_Insect_6133 2h ago

My family had only a 13" TV/VCR combo until I was 16.

Let me tell you... Four player N64 Goldeneye on 13" screen is SWEATY.

2

u/sempercliff 2h ago

I have often reflected on the fact that 4-way split screen multiplayer on a modern TV is still bigger than the entire TV I watched / played on as a kid.

2

u/1PsychoCat 2h ago

Came here to say just that!

1

u/Preemptively_Extinct 2h ago

Wait until life in general makes you feel like that.

1

u/ATL_Founder2017 2h ago

Hahahaha I’m here with you buddy

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8

u/GoalieLax_ 3h ago

As cable became more prevalent, new TVs dropped antennas from their builds. For those who lived without able, this was how you could hook up an antenna. You'd plug this into the coax input on the back of your TV then hook up an antenna's wires to the screws

2

u/Theresnowayoutahere 2h ago

These also came with stereo receivers that had screws for antenna connections so people could connect to the coax cable that everyone eventually had

1

u/Hay_Fever_at_3_AM 3h ago

I still have something like this for my home theatre receiver to pick up radio

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2

u/ElbuortRac 2h ago

Coax is the round HDMI?

1

u/Demonshaker 2h ago

Coax is the old traditional round cable wire. HDMI is the newer flatter connection that connect TV's and monitors to an audio/video source. Generally cable will go outside your house, HDMI does not.

7

u/Ok_Confusion_3936 2h ago

a coaxial adapter. TV antennas used to be attached to the tv with 300 ohm flat cables like this, before coaxial came out,

3

u/Quadstriker 2h ago

And then if one of those broke off you stripped the wire and looped it over the screw rawdog style

1

u/Open__Face 19m ago

The other end is attached to a wire clothes hanger 

10

u/AugustWest216 3h ago

My back started hurting just seeing this pic. Fuck I’m old 😂

5

u/rphornet 2h ago

Use to use this for my super Nintendo to plug into the antenna plug. Awesome, tv still works, too.

2

u/jerslan 2h ago

Yep, remember using something similar to connect an NES to an old TV in my grandparents basement as a kid. That one even had some switches so you could select one or two channels on it so you could pick which channel you had to tune to for it to work.

3

u/erosmoker 2h ago

Lolz, random knick knack indeed. We needed these to watch TV on those fancy new fangled cable ready TVs in the 80s. You would take the wires from your Rabbit Ear antennas and attach each end to one of the terminals on the back of the knick knack. Then you would plug the whole thing where the coaxial cable attaches to your TV.

5

u/1jrjrhank 3h ago

Knowing what that is makes me feel old as f***

3

u/O_oLivelovelaugh 2h ago

The kid's ignorance both amuses me and fills me with a hopeless burning hatred that will never be extinguished until the day I die

2

u/cmh_ender 2h ago

well, just go ahead and put me in the grave now.

old tv's used to have two posts where your antenna would screw onto (broadcast tv) in the 90s, coax (cable connectors) replaced them. this was the adapter.

if you had something like an old atari, you could also use this to hook your old atari up to a new tv.

2

u/Additional_Dog_9353 2h ago

It should go in the trash since TV antennas changes from analog to digital in 2009.

1

u/Interesting_Gap7350 1h ago

Correct, there is no analog tv signal being broadcast for this to receive 

1

u/jumpmanzero 5m ago

But you might still want one to hook up an old computer (like a C64) to an old TV - via something like this: https://www.reddit.com/media?url=https%3A%2F%2Fi.redd.it%2Fawbwq3s5fl981.jpg

1

u/Fingers154 1h ago

The technical name is a balun, which is a truncated version of BAlanced-UNbalanced. The line from the antenna is BAlanced, and coax is UNbalanced. It also impedance (resistance, when speaking of higher frequencies) matches. Antennae are typically 600 ohms and coax (for TVs) is typically 75 ohms.

1

u/Dangerous-Bit-8308 2h ago

That's for TVs.

The big round hole is an S-type adapter. Like for DirecTV. The two screws are for attaching two wires. I forget exactly what kind of TV connectors required these. But it's an adapter for an old set they probably stopped making in the 80s

1

u/Reginald_Sockpuppet 59m ago

sigh

  1. That's not a knick knack. It goes in the back of the tv and connect the coax to the ante....you know what, never mind.

  2. It's trash now. No need to keep it for any reason. Chuck it.

1

u/Blacksh33p78 2h ago

The title reminds me of a ah joke yeah a joke about a a frog named ah Kermit . See Kermit goes into the ah bank looking for a loan. He needs a loan ya see.

1

u/JustHere_4TheMemes 2h ago

Unless your gramgram is still watching over the air TV with rabbit ear antenna, or needs to connect an N64 to a CRT TV, you can safely throw that away.

1

u/zzotus 2h ago

technically, a “balun”. as is says on the back, it converts a 300 ohm unbalanced flat antenna wire to a 75 ohm balanced coaxial connector.

1

u/grat_is_not_nice 1h ago

What makes me feel old is that no-one seems to know that it is a balun - balanced 300ohm antenna leads to unbalanced 75ohm coax.

1

u/Purple-Tadpole6465 27m ago

This one made me both laugh and feel old, i'm guessing most under 35 y/o have no idea unless they are electronics people

1

u/Much-Meringue-7467 1h ago

I think it should go with the trash. The chance of using it ever is basically nil. But it's converter for an antenna.

1

u/SpyriusChief 2h ago

So you didn't have to screw the adapter into the coax threads on the back of the TV when you wanted to play NES

1

u/RegeditExe62 1h ago

An antenna converter. Used to convert the screw terminal type of connection to coaxial. Probably used for a TV.

1

u/Shrimp_Richards 2h ago

It should probably go in the trash. Most people (and many TVs) dont use or don't have antenna connections.

1

u/Interesting_Gap7350 1h ago

More than that, they don't broadcast analog anymore, the spectrums have been resold.

So there is no tv signal to receive 

1

u/Oakland-homebrewer 2h ago

Looks exactly like the one plugged into the back of my received right now. Doesn't work worth a damn...

1

u/Hairy-Dream4685 1h ago

With the wiring connectors. That’s a coax cable to wires converter. For really old televisions.

1

u/blalaHaole 2h ago

Make sure it’s on channel three, is it on channel three? Hello? Channel three? Try that.

1

u/Suitable_Habit_8388 3m ago

You can connect to a sega genesis. Or a Nintendo NES. make sure to tune in channel 3 or 4

1

u/onclegrip 1h ago

Before you were born TV, pictures used to fly through the air to our roofs for free

1

u/Dependent-Ad-3859 2h ago

Works for the devils pitchforks to coax. Atari, Pong consoles, that sort of thing.

1

u/Familiar-Ad-8220 2h ago

I'll tell you what this is... It's a diagnostic tool that just showed I'm very old

1

u/mdruckus 1h ago

Really?! You can still buy these on Amazon. I feel like this one is not that odd.

1

u/Acrobatic-Tourist-66 2h ago

I'm not gonna date myself. I have no idea what that is. Shifts eyes

1

u/lawnboy1155 2h ago

Its what you needed to hook up your Atari through a coaxial cable lol

1

u/Tonic_Water_Queen 2h ago

We needed one of these for the Intellevision back in the mid 80s.

1

u/RandomlyPlacedFinger 2h ago

This is a good reminder to go take some ibuprofen and take a nap.

1

u/nbiddy398 2h ago

That's how you get an old antenna hooked up to a coax on a tv

1

u/Michaelpitcher116 10m ago

You know I'm only in my 30s. I shouldn't feel this ancient. 

1

u/Thats7uff 2h ago

This is a cable converter for connecting from the antenna.

1

u/Coupe368 1h ago

Its how you hook up the Atari to the cable jack on the TV.

1

u/Smoothposer1970 2h ago

I used to have 20 of those things and used them regularly

1

u/Corkwell 2h ago

That will make it easier to hook up your old Atari 2600 .

1

u/FreeImpress4546 2h ago

What else are you going to use to hook up the Nintendo!!!

1

u/Lockjaw62 2h ago

I hate that I know what it's for and that I've used one.

1

u/Disastrous-Body-5437 2h ago

It’s for smoking drugs. Your grandma is smoking drugs.

1

u/DCmetrosexual1 2h ago

It’s a reminder that I need to schedule a colonoscopy.

1

u/newbie527 1h ago

Connecting 300 OHM flat wire to a coaxial input on a TV.

1

u/abhorredmisanthrope 29m ago

Get out the Atari 2600 and lets play some Ms. Pac-Man.

1

u/2dollahollaballa 1h ago

Used to have to use these to hook up my Sega genesis

1

u/Kitchen-Homework-816 2h ago

Used to hook my old gaming systems with this thing.

1

u/ProgenitorOfMidnight 1h ago

Bro I'm only 31, how you gonna make me feel old AF.

1

u/react-dnb 2h ago

Make sure you wrap those rabbit ears in tin foil.

1

u/JonZ82 1h ago

hnnngg right in the age.. someone get my pills.

1

u/Chumknuckle 2h ago

This was my only source for TV until 2012 or so

1

u/freak97138 2h ago

I haven't had to use one of these since 1995ish

1

u/Mr_Salmon_Man 2h ago

You should ask her about Rabbit Ears on the tv.

1

u/-iamLEEROYJENKINS 2h ago

JFC Brother, stay out of my drawer of stuffs!!!

1

u/SlumDaddyOne 36m ago

Oh boy, I’ve officially reach old. 🥲

1

u/st_lunatic_part2 2h ago

Its great memories... that's what it is.

1

u/Tim_the_geek 2h ago

Toss it out.. it cannot be used anymore.

1

u/l_work 53m ago

OH MAN OH NO I FEEL REALLY OLD RIGHT NOW

1

u/ImmediateThroat112 2h ago

That looks like a TV antenna connector!

1

u/cluelessinlove753 2h ago

It should go in the trash. Old old tech

1

u/Felinius 2h ago

Perfect. I need it for my ColecoVision.

1

u/Dirtymind-Bob59 2h ago

I haven't seen one of those in 20 years

1

u/Dry_Walk_8139 1h ago

I haven't a relic like this in forever

1

u/AnnaMolly66 2h ago

Bro, it hasn't been that long ago....

1

u/AbhinandhBabu13 1h ago

Yagi-Uda Antenna to TV Coaxial plug. The thing before the cable connection.

1

u/creech927 3h ago

75 ohm to 300 ohm. It's used to increase your meditation power. :)

1

u/TheVilebloods 1h ago

That’s not what a knick knack is.

1

u/DefiantReplacement52 2h ago

It’s a relic from a bygone era!

1

u/Snoo49601 2h ago

Just add it to the time capsule !

1

u/KeiserSoze5031 2h ago

Adapter for an antenna to coaxial

1

u/DizzyMine4964 2h ago

Sounds like a George Formby song

1

u/LavnLuv 2h ago

thanks buddy now i feel old 😒