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録音機器 aion RUNOFFGROOVE SUPREAUX DEUXのPDF マニュアルをオンラインで閲覧またはダウンロードできます。aion RUNOFFGROOVE SUPREAUX DEUX 10 ページ。

BUILD NOTES

Setting bias trimmers

Turn the trimmers so that the drain ("D" pad) of the JFETs measure 12V, measured with a multimeter

(red probe to "D" pad and black probe to ground).

This is just a guideline, though. You can tweak the trimmers to fine-tune the circuit to your liking. The

bias affects the total gain of the circuit, so you can make it a little cleaner or a little dirtier than stock.

J201 usage

The J201 transistor is very popular in DIY pedal designs, but was discontinued in TO-92 through-hole

format several years ago and is becoming very scarce. Genuine parts are getting expensive and many

counterfeits have entered the market.

The MMBFJ201 is a SMD version that is still in production. On the PCB, two outlines have been included

for each individual JFET, one for TO-92 and one for SMD (called SOT-23) right next to it. Make sure you

only use one or the other—don't put both a through-hole and surface mount part in the two Q1 spots.

J201 adapters

Many DIY builders are intimidated by the small size of surface-mount parts. Aion FX offers

pre-soldered

J201s on adapters

so they can easily be used as through-hole parts.

RUNOFFGROOVE SUPREAUX DEUX