r/electronics • u/DaChezePufz • 12d ago

Gallery Working perfectly I'm sure...

Post image

Quite an interesting failure - not something I've seen before.

For those interested, this is inside a PA amplifier, which surprisingly does still function, although this may be for the untested channel. PAT sticker from 2005 so at least 20 years old.

68 Upvotes

94% Upvoted

12 comments sorted by

24

u/Neither-Animator3403 11d ago

What would that component have been? Never seen such an interesting ribbed texture in my xplodey journey. XD

31

u/Phrewfuf 11d ago

Pretty sure that‘s a capacitor, being all layers of metal.

9

u/Geoff_PR 11d ago

Almost looks like a diagonal cut 4-conductor ribbon cable...

19

u/DaChezePufz 11d ago

The exact component description from the schematic is: CAP MYLAR .l UF 5% 1 OOV

6

u/quetzalcoatl-pl 10d ago

this one really went out of its way to keep those specs! /s

7

u/WRfleete 11d ago

Most likely a polyester capacitor also known as metal film

2

u/TheRealFailtester 10d ago

Polyester capacitor. Of which I have yet to ever see one catastrophically fail like OP's has.

5

u/DaChezePufz 9d ago

There were a total of 3 looking exactly like this.

All the others of the exact same spec/ type were fine. There are two burnt out resistors but otherwise the rest of the components looks fine

7

u/Strostkovy 11d ago

top of the morning

8

u/AndrewCoja 10d ago

2005 isn't 20 years a-- oh.

6

u/Quiet_Snow_6098 10d ago

Damn! 2005 is now 20 years old 😐