Fairchild interest.

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#150
Matching of the P parts has begun and going well. THe N channel parts have become a bit of a pain. I have cycled through multiple sample of the 19n20C part tha have been fake. I have some more coming that will be tested soon. If they turn out to be bogus, I think we should look at the possiblity of using the standard 19n20 (non-c) part. The numbers differ slightly, but should not present any significant difference in performance. The availiblity of P3 to trim out differences in the output stage helps us in this regard. I will provide repsonse curves for all the fets involved and if "C" designated parts cannot be sourced, then I will show comparison of "non-C" vs "C" parts. My intent was to release this info after i had gone through all alternatives, but your question presented the opportunity. My suggestion is to sit tight and I will have info very soon hopefully.
 
#151
buzzforb said:
Matching of the P parts has begun and going well. THe N channel parts have become a bit of a pain. I have cycled through multiple sample of the 19n20C part tha have been fake. I have some more coming that will be tested soon. If they turn out to be bogus, I think we should look at the possiblity of using the standard 19n20 (non-c) part. The numbers differ slightly, but should not present any significant difference in performance. The availiblity of P3 to trim out differences in the output stage helps us in this regard. I will provide repsonse curves for all the fets involved and if "C" designated parts cannot be sourced, then I will show comparison of "non-C" vs "C" parts. My intent was to release this info after i had gone through all alternatives, but your question presented the opportunity. My suggestion is to sit tight and I will have info very soon hopefully.
Click to expand...

Curious where the 19N20c parts came from?
 
#158
buzzforb said:
Matching of the P parts has begun and going well. THe N channel parts have become a bit of a pain. I have cycled through multiple sample of the 19n20C part tha have been fake. I have some more coming that will be tested soon. If they turn out to be bogus, I think we should look at the possiblity of using the standard 19n20 (non-c) part. The numbers differ slightly, but should not present any significant difference in performance. The availiblity of P3 to trim out differences in the output stage helps us in this regard. I will provide repsonse curves for all the fets involved and if "C" designated parts cannot be sourced, then I will show comparison of "non-C" vs "C" parts. My intent was to release this info after i had gone through all alternatives, but your question presented the opportunity. My suggestion is to sit tight and I will have info very soon hopefully.
Click to expand...

Thanks ....
 
#159
I attempted to add my name to the sign up sheet and I may have deleted the next to last name entered in the spreadsheet. I highlighted the last blank line, but my entry posted 2 lines up. I hope you have a saved spreadsheet with all the names. I apologize.
 
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