[sdiy] MPF102 replacements

[Dave Kendall]

> On Sep 9, 2011, at 4:28 PM, David G Dixon wrote:
>
>>> Quick question. Mouser shows the MPF102 transistor as "End of
>>> Life". There's still several thousand in stock, but can the
>>> part be replaced by any N-channel RF JFET or is there a
>>> particular part that should be used?
>>
>> I prefer the 2N5485, myself, because is has a smaller pinchoff 
>> voltage.
>> J310 should be good as well.  A common replacement for MPF102 is 
>> 2N5457, but
>> I don't find that it works that well.
>>
>> YMMV, of course.
>>

Ken stone recommends these, in a link referring to alternatives for the 
MPF102 in the VCO section of the Bi N tic filter

	• 	2N4856: Alternate FETs include 2N4091, 2N4391, PN4091 2N4391 PN4391 
PN4856, MPF108
	
cheers,
Dave