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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 19th Jun 2019, 5:10 pm   #1
trabant
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Default Can anyone identify this valve ?

Can anyone identify this valve please COSSOR no markings other than V9 etched under COSSOR on the top
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Old 19th Jun 2019, 5:30 pm   #2
Mr Moose
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Default Re: Can anyone identify this valve ?

Hello,
Probably a Cossor MP/Pen (5pin).
https://www.radiomuseum.org/tubes/tube_mppen.html
Yours, Richard
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Old 19th Jun 2019, 5:34 pm   #3
snowman_al
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Default Re: Can anyone identify this valve ?

Likely an MPPen/B5. (Aka Mazda AC/pen, aka Mullard Pen4VA5...)
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Last edited by snowman_al; 19th Jun 2019 at 5:35 pm. Reason: Richard wins!
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