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#50041 03/11/10 8:25 AM
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Sage
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Sage
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I need help finding a cross for a transistor for a SSE2L. Power transistor output with part number 239300027.Does anyone have a cross for this?
thaks and GodBless US.


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Master
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Master
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Hi I just did a search for this transistor on the net and found a company who will supply them.

1medical.com

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Super Hero
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Super Hero
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Good Old Google! smile


If you don't inspect ... don't expect.
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Sage
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Sage
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Thanks sir bcarlisle and sir geoff.
The big problem is they dont give less than 10 i think,and i only need 2.
to make my project work again,ihave to go penetrate what this parts inside.and make experement.


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Master
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Master
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Which valleylab machine and board is it on and we can have a look in our manuels if we have them.


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Sage
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Sage
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Good day sir,
valleylab model SSE2L.Those transistors are located at cooler
assembly.
thanks and GODSPEED.


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Sage
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Dear Ariel
I use to do this & it works.. USE Q1 & Q2 for original transistors, for others use BUX80 transistors. The maximum output power will be around 310 watt in cut mode (if u r lucky u can get more)..
Other wise u are right that they give in large qty..
Hope it works for you.

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Super Hero
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Super Hero
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The BUX-80 is easily available. Have you tried it (them) at Q1, Q2 also?

Failing that ... perhaps someone needs to bite on the bullet and order up a stock of 239 300 027 ... and then offer them right here on the forum? smile


If you don't inspect ... don't expect.
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Sage
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Sage
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Dear Geoff
I have tried all 8pcs of BUX80 but we have to change some resistances in the MULTIVIBRATOR BOARD so to overcome the overall gain / output ratio. We have a NEURODYNE ESU tester, so we can test different resistance to output power ratio.
So i cant tell u the exact resistance value.
On the other hand if Q1 & Q2 are original transistors then there is either v few changes needed or some times it will work in first attempt.
Again i will explain that the BUX80 will not be able to deliver max 350-380watt output in Cut. But i have achieve 350watt max in one SSE2L (lucky client).. Here in Pakistan, customers & hospitals cant afford original transistors as their cost is way high..
Hope it helps. Thanks..
The real replacement of valleylab original transistors is v difficult because of high hFe gain, which is not available in market.. If customer can afford original transistors then u should buy from SOMATECHNOLOGY, replace all, do keep others as spares..
Good luck..

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Super Hero
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Super Hero
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Interesting. smile

Thanks for sharing that with us, Buddy.


If you don't inspect ... don't expect.
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