Groups > sci.electronics.components > #5737

Re: Transistor identification?

Subject	Re: Transistor identification?
Newsgroups	sci.electronics.components
References	<msgutb$2el$1@speranza.aioe.org> <M4qdnSgaHKD87XHInZ2dnUU7-fednZ2d@giganews.com>
From	Brian Gregory <bvdvgvrvevgvovrvy@gmail.com>
Organization	BG Design Services
Date	2015-09-09 03:38 +0100
Message-ID	<4bKdnc4h_KYVBnLInZ2dnUU78fudnZ2d@giganews.com> (permalink)

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On 06/09/2015 17:57, John Robertson wrote:
> On 09/06/2015 1:53 AM, Look165 wrote:
>> Previous post problem !
>>
>> 444 is 2N444
>>
>> NPN Germanium  TO5 15V 25mA 150mW 400 KHz  : equivalent AC176 or 2N2430
>
> Germanium? That is quite ancient - any designs from the 1970s on would
> be silicon.
>
> If the OP can check the rest of the device to get an idea of the age
> that would help determine if it is possibly germanium.
>
> John :-#)#
>

I don't recall ever seeing a germanium device in a modern plastic 
package like that.

-- 

Brian Gregory (in the UK).
To email me please remove all the letter vee from my email address.

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Thread

Transistor identification? Look165 <look165@numericable.fr> - 2015-09-06 10:53 +0200
  Re: Transistor identification? John Robertson <spam@flippers.com> - 2015-09-06 09:57 -0700
    Re: Transistor identification? Brian Gregory <bvdvgvrvevgvovrvy@gmail.com> - 2015-09-09 03:38 +0100
      Re: Transistor identification? legg <legg@nospam.magma.ca> - 2015-09-09 11:47 -0400
        Re: Transistor identification? "Ian Field" <gangprobing.alien@ntlworld.com> - 2015-09-17 20:22 +0100
          Re: Transistor identification? legg <legg@nospam.magma.ca> - 2015-09-18 08:55 -0400

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