Author Topic: Mic booster FET sub.  (Read 219 times)

John Lyons

Mic booster FET sub.
« on: January 28, 2021, 04:35:12 PM »
Looking for a substitution for the 2SK170 for this mic boost.


Basic Audio Pedals
www.basicaudio.net/

antonis

"I'm getting older while being taught all the time" Solon the Athenian..
"I don't mind  being taught all the time but I do mind a lot getting old" Antonis the Thessalonian..

John Lyons

Re: Mic booster FET sub.
« Reply #2 on: January 28, 2021, 05:12:50 PM »
Thanks.
Now where to buy the 2SK117?
The LS are $$$$

What are the chances these are legit
or on ebay?
https://www.amazon.com/2SK117-2SK117GR-N-Channel-14mA-transistor/dp/B00I6ICTZ2
Basic Audio Pedals
www.basicaudio.net/

garcho

Re: Mic booster FET sub.
« Reply #3 on: January 28, 2021, 06:12:36 PM »
^ are you up for using an SMD equivalent?

from someone named Dylan W at GroupDIY:

Quote
Toshiba 2SK880 is the same as the 2SK209, in slightly smaller SC-70 package.

Both are the same part as the 2SK117, which is itself similar to 2SK170. (Not quite as low-noise as the 170, but less capacitance, which is good for condenser mic use.)

Check the datasheets, maybe he's right.
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John Lyons

Re: Mic booster FET sub.
« Reply #4 on: January 28, 2021, 09:14:13 PM »
Thanks
I may use SMD parts since they are much
more available and much cheaper.