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2sk241 and 2sc1815 equivalents on RF preamplifier

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neazoi

neazoi

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Hello, I am building this frequency counter (30MHz max frequency input)
**broken link removed**
I would like to replace the input transistors of the preamplifier with European/US transistors.
Can I use MPF102 and 2n2222 for these without changing the rest of the components?
What are the exact equivalents?
 

MPF102 & 2n2222 would be OK, almost any general purpose juntion FET & transistor should work.
 

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