1570
Tell me what it means
(lemm.ee)
1. Be civil
No trolling, bigotry or other insulting / annoying behaviour
2. No politics
This is non-politics community. For political memes please go to !politicalmemes@lemmy.world
3. No recent reposts
Check for reposts when posting a meme, you can only repost after 1 month
4. No bots
No bots without the express approval of the mods or the admins
5. No Spam/Ads
No advertisements or spam. This is an instance rule and the only way to live.
That little adapter is called a balun. The two screws were a balanced antenna lead, coax is an unbalanced antenna connection. So it goes from balanced (bal) to unbalanced (un), hence balun.
They're still used in radio communications, but almost all consumer products use coax/unbalanced connections for their antennas.
I could go into detail about what a balanced/unbalanced antenna is, but it would take more words than I care to type right now. I'll let anyone who is curious go and Google it.