What is the type of this caps?

diegot · 6th January 2007, 10:13 PM

I found many in a old stock of a local store.
Maybe someone can help me.
Thanks in advance.

Onra · 6th January 2007, 10:42 PM

Hi,
that´s a very old logo of "Siemens & Halske" (1847- 1966), later Siemens AG. Their passive parts are now "epcos".
I would say it is a foil-cap of 0,1µF with max 250 Volts DC and K means +-10% tolerance. Can you test them?
MAC should be the dielectric, but not identified.
Sorry, too young

Regards, Onra

KBK · 7th January 2007, 04:51 AM

best to cut one open and check for foil vs metallized? Or was the foil more common back then? Meaning, metallized being non existent?

diegot · 21st January 2007, 04:59 PM

I measured four caps end got goods results
The readings are (nF)
100.1
100.7
99.5
99.6

Quite good for some caps with more than 20 years old.

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6th January 2007, 10:42 PM	#2
Onra diyAudio Member Join Date: Jul 2005 Location: near Frankfurt/M	Hi, that´s a very old logo of "Siemens & Halske" (1847- 1966), later Siemens AG. Their passive parts are now "epcos". I would say it is a foil-cap of 0,1µF with max 250 Volts DC and K means +-10% tolerance. Can you test them? MAC should be the dielectric, but not identified. Sorry, too young Regards, Onra

7th January 2007, 04:51 AM	#3
KBK diyAudio Member Join Date: Dec 2003 Location: The Wilds Of Canada	best to cut one open and check for foil vs metallized? Or was the foil more common back then? Meaning, metallized being non existent?

21st January 2007, 04:59 PM	#4
diegot diyAudio Member Join Date: Sep 2004 Location: Brazil	I measured four caps end got goods results The readings are (nF) 100.1 100.7 99.5 99.6 Quite good for some caps with more than 20 years old.