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Components and Circuits For discussions about component types, alternatives and availability, circuit configurations and modifications etc. Discussions here should be of a general nature and not about specific sets.

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Old 3rd Oct 2019, 11:57 pm   #1
Radio_Dave
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Default Mystery Component

My latest project has a couple of components that I've never encountered before. I've circled them in red, can anybody identify them please?

TIA
David
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Old 3rd Oct 2019, 11:58 pm   #2
Refugee
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Default Re: Mystery Component

Those look like selenium diodes to me.
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Old 4th Oct 2019, 9:45 am   #3
lesmw0sec
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Default Re: Mystery Component

Copper oxide diodes?
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Old 4th Oct 2019, 10:11 am   #4
ms660
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Default Re: Mystery Component

They look like Brimar SenTerCel selenium diodes (book page 269 for the data):

https://www.rsp-italy.it/Electronics...20-%201958.pdf

Lawrence.

Last edited by ms660; 4th Oct 2019 at 10:23 am. Reason: Additional info
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Old 4th Oct 2019, 10:53 am   #5
Radio_Dave
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Default Re: Mystery Component

Thanks for the replies.

They do physically measure up to the the description of Brimar SenTerCel selenium diodes. Hopefully they'll prove serviceable!

Thanks
David
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Old 4th Oct 2019, 2:33 pm   #6
AC/HL
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Default Re: Mystery Component

The type number is stamped on the side, only the M is visible in the photo.
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