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Marsh headphone amp from Linear Audio
Marsh headphone amp from Linear Audio
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Old 31st July 2019, 07:47 PM   #1661
DualTriode is offline DualTriode  United States
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Join Date: Aug 2009
Location: Nor Cal
Hello,

A closer look at the 2N5457ís and 2N5460ís from Jameco.

The 2N5457ís have a Synertek logo on them. These N JFETís run about 30% below the minimum IDSS on the datasheet.

Synertek - Wikipedia

The Fairchild labeled 2N5460's test right in the middle of the datasheet.

The thing is, there are no matches to be found between these 2 piles of JFETís.

Thanks DT
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File Type: png Synertek 2N5457.png (57.8 KB, 116 views)
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Old 31st July 2019, 09:52 PM   #1662
RNMarsh is offline RNMarsh  United States
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Comment --- I have found that Fairchilds - real ones - are very good BUT can you get them? Some sources and maybe Jamco, buy from second sources. What i found was that particularly from the internet - eBay et al - they appear to have been sorted already and the ones which did not match dumped on the internet or else where cheap.



THx-RNMarsh
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Old 1st August 2019, 03:10 PM   #1663
jackinnj is offline jackinnj  United States
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Marsh headphone amp from Linear Audio
Recent batch from Mouser are Central Semi
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