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hugo929
Joined: 27 Oct 2006
Posts: 6163
Location: China
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kosmokrator
Joined: 03 Jul 2008
Posts: 4085
Location: Athens-GR
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 Posted: Sat Nov 15, 2008 3:04 am Post subject: |
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im not collect transistors.....but if i found something so nice like this....yes im interested!!  |
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Elar
Joined: 16 Jul 2003
Posts: 746
Location: Tallinn, Estonia
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| Posted: Sat Nov 15, 2008 3:19 am Post subject: |
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| Nice, soviet made military version. |
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iguana
Joined: 24 Apr 2007
Posts: 2456
Location: Ottawa, Canada
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debs3759
Joined: 18 Jan 2006
Posts: 9477
Location: Northampton, Divided Kingdom
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| Posted: Sat Nov 15, 2008 6:17 am Post subject: |
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I don't know what the diamond symbol means, but I am sure it's not milspec.
And certainly not rare, as the seller suggests, if he has 95 pairs left to sell at that low a price
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kosmokrator
Joined: 03 Jul 2008
Posts: 4085
Location: Athens-GR
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| Posted: Sat Nov 15, 2008 7:03 am Post subject: |
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i think iguanna know better the ussr chips...
also i have a feeling that symbol means mil spec... |
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iguana
Joined: 24 Apr 2007
Posts: 2456
Location: Ottawa, Canada
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Elar
Joined: 16 Jul 2003
Posts: 746
Location: Tallinn, Estonia
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| Posted: Sat Nov 15, 2008 8:12 am Post subject: |
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| debs3759 wrote: | I don't know what the diamond symbol means, but I am sure it's not milspec.
And certainly not rare, as the seller suggests, if he has 95 pairs left to sell at that low a price |
It is milspec device. In addition on transistors prefix "1" means milspec for germanium, "2" for silicon. Normal spec device type would be GTS609B.
Iguana's transistor array KTS613B for example has normal spec silicon transistors. No rombic sign either. |
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kosmokrator
Joined: 03 Jul 2008
Posts: 4085
Location: Athens-GR
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| Posted: Sat Nov 15, 2008 8:16 am Post subject: |
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wow....nice info....
Elar are u semiconductor engineer???
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el_gecko
Joined: 25 May 2005
Posts: 1553
Location: Nice, France
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| Posted: Sat Nov 15, 2008 8:27 am Post subject: |
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Awesome chips!
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Elar
Joined: 16 Jul 2003
Posts: 746
Location: Tallinn, Estonia
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| Posted: Sat Nov 15, 2008 9:01 am Post subject: |
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| el_gecko wrote: | | Awesome chips! |
Indeed. For example K223TR1 is hybrid ECL logic. Even more interesting device is 240LA1A, made not from discrete transistors, but 156 series DTL logic chips in die form ie it is multichip hybrid. |
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iguana
Joined: 24 Apr 2007
Posts: 2456
Location: Ottawa, Canada
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Windmiller
Joined: 24 Jun 2005
Posts: 1716
Location: Chapel Hill, NC
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| Posted: Sat Nov 15, 2008 5:14 pm Post subject: |
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| Great chips Igor! I love the odd packages of chips from your area |
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Elar
Joined: 16 Jul 2003
Posts: 746
Location: Tallinn, Estonia
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| Posted: Sat Nov 15, 2008 5:20 pm Post subject: |
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| Another cool hybrid. K230 series is also multichip circuit, TTL logic. The 231 series is similar but in RTL logic. |
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iguana
Joined: 24 Apr 2007
Posts: 2456
Location: Ottawa, Canada
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Right ?
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