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Joachim Gerhard Filter Buffer for ES9022

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tome

tome

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I have edited it to have only 1 for me.
 
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pchw

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At the moment, Mouser has 261 inductors in stocks.
At the current 60 mark, that will be 120 Fastrons already.

I don' have the equipment to match (at least for now) but can certainly help out to sweep all of them and reship to whoever can match them up. Go for it??
 
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pchw

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I have a similarly cheap LCR meter and 4 of these inductors with me.
It didn't quite work when I switched to the 20mH settings. I thought it was
just a POS. However, once I switched to the 200mH, it did produce result. I got readings of
18.8, 18.9, 19.0, 19.5. Are these readings good enough? If so, I am good to go. This will be a lot easier than matching transistors :) just not sure how many to order.

I suspect the reason why 20mH setting didn't work was due to the initial spike of the inductance at the beginning. I suppose I get what I paid for :)
 
EUVL

EUVL

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That is good enough.
You want to match to say 1%, and with 18.x you have resolution to 0.5%.

Matching passives are easier than FETs. BJTs are also easier.

I think if you order 150 you should have enough pairs, with some left for late comers.
And you are becoming GB leader for the inductors.

:)


Patrick
 
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