PDA

View Full Version : what type of capacitor are these?



karma67
24-08-2019, 17:17
as above anyone know?

https://i.postimg.cc/sX2T9ZMJ/IMG-3558.jpg

https://i.postimg.cc/Qtn06x5Z/IMG-3559.jpg

Bigman80
24-08-2019, 17:19
Hmmm, googled it?

karma67
24-08-2019, 17:29
i reckon alan would know,my guess is polyester

struth
24-08-2019, 17:58
Could be tantalum
Or metalized polys
Doh

karma67
24-08-2019, 18:39
late 60's early 70's if that helps?

Barry
24-08-2019, 19:23
They are not tantalum (tantalum capacitors need to be biased). I would say they are polyester.

Light Dependant Resistor
24-08-2019, 19:27
They are still available now with 250v rating , but otherwise very similar here:
https://www.jaycar.com.au/1uf-250v-metallised-polypropylene-crossover-capacitor/p/RY6950

Bigman80
24-08-2019, 19:29
I wouldnt stick a polyester cap in anything personally so polypropylene ones of the same value will probably be spot on.

walpurgis
24-08-2019, 19:29
I have some new unused poly's I bought forty years ago that look very similar.

Barry
24-08-2019, 19:30
Ah - so they are polypropylene.

Wakefield Turntables
24-08-2019, 20:09
+/- 20% tolerance ??? :wowzer:

karma67
24-08-2019, 20:13
Hifi collective didn’t exist in the 60’s pmsl