What electronics component is this?
The one the pen is pointing to!
It's on a electric piano circuit board for midi (midi out isn't working).
- amania_rLv 78 months agoFavourite answer
As others have said, it's an RF choke, used to block parasitic RF. This component can't fail (unless there's a dry solder joint)
- M.Lv 77 months ago
It looks like 2 ferrite beads. Inductors. Chokes.
- StevenLv 78 months ago
- 異域秦後人Lv 78 months ago
THIS IS A RF CHOKE TO BE USED TO BLOCK UNWANTED SPIKES.
- What do you think of the answers? You can sign in to give your opinion on the answer.
- qrkLv 78 months ago
Looks like two ferrite beads strung in series.
- billrussell42Lv 78 months ago
what I see is part of a printed circuit board with a metal piece attached, which has two holes in it. The PC board has a transistor on the left, several resistors, several strange black components, and what appears to be a metal piece, perhaps a transformer.
the black components are a bit blurry.... except for the wires soldered to the top, they could be capacitors.
re other answers, yes, I see now that they are ferrite beads. large ones.
- daniel gLv 78 months ago
I see several, a transistor, a couple 1/4 watt resistors, and what looks to be a pen, pointing to ferrite chokes. a heavy loop of solid wire for current, with ferrite beads to make a low inductance choke.
(power supply circuit perhaps)
- JimLv 78 months ago
That's weird I'm not sure!
- If 3 wires on their bottom they are transistors. Transistors are sometimes 'jumped'.
- If 2 wire, my best guess is they are capacitors, especially since I think I see a "-" sign and capacitors are directional (and resistors are not).
But I gotta say, I've never seen a jumper quite like that!!!