Can you spot the fault?

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kingkorg

Well-known member
Joined
Apr 15, 2017
Messages
3,026
Location
Norway
Hi guys, this is the second time i am trying to build this mic, and i get mediocre frequency response from the circuit.

Can you spot if there is something wrong with the schematic?

http://www.audioimprov.com/AudioImprov/Mics/Entries/2017/5/7_Schoctava,_a_simple_mic_circuit_files/Mic%20Schoctava%201.jpg
 
And this is the response i get.


UJ2ds2z.jpg
 
Well i guess i had to learn the lesson eventualy. It was fake chinese FET bought online from "reliable source" on eBay.

Not only was it fake, it had wrong pinout. I just used 2sk170bl and it works like a charm.

Sorry for the confusion...

 

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