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7th February 2012, 03:48 PM
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#1 |
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diyAudio Member
Join Date: Feb 2007
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Manufacturer of this 2N5858 ?
Hi,
I recently bought some old 2n5858's from a local supplier but I couldn't identify their brand. They have a "T" like emblem. Another thing is 5858 specified as TO-105 case but these are TO-39. I think it is better get some info about their manufacturer prior a suspicion. Last edited by terranigma; 7th February 2012 at 03:51 PM. |
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7th February 2012, 04:36 PM
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#2 |
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diyAudio Member
Join Date: Jul 2005
Location: D-55629 Schwarzerden
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perhaps you will find out with help of this website:
aufzu Halbleiterhersteller-Logos-Ecke scroll down to "T". Not all manufacturer are to find like Tungsram about http://www.oldtimeradio.de/firma-183.php Last edited by tiefbassuebertr; 7th February 2012 at 04:47 PM. |
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7th February 2012, 04:56 PM
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#3 |
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diyAudio Member
Join Date: Sep 2006
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It is the logo of the Transitron corporation:
Transistor Museum Early Germanium Power Transistor History by Joe Knight Transitron Page 2
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7th February 2012, 05:56 PM
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#4 |
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diyAudio Member
Join Date: Feb 2007
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Elvee here you are.. I was about to issue this in Circlophone thread for make you aware of this but it is not necessary so far.
tiefbassuebertr, thank you for link. I'm aware now these BD140's are from Harris. It seems it is best for asking about parts to solid state gurus here. |
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