Aion Electronics Refractor Overdrive Manual - Halaman 7
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Additional Notes & Wiring Diagram
The wiring for this project is very non-standard since the circuit uses buffered bypass rather than true bypass.
Though it is most likely possible to make this circuit true bypass, that version is not supported or covered in this
build document. The original circuit was designed around the buffer, so I'd recommend trying that first and only
attempt a true bypass version if you absolutely need to.
The wiring diagram makes use of star grounding principles where all of the grounds connect to a single
ground point (in this case the sleeve of the input jack). This is best practice to avoid added noise caused by
improper grounding. The sleeve of the output jack is unconnected.
If using a painted or powdercoated enclosure, make sure both jacks have solid contact with bare
aluminum for grounding purposes. You may need to sand off some of the paint or powdercoat on the inside in
order to make this happen.
I've tried to make the diagram big enough that it's easy to read, but if you're having trouble then try zooming
the PDF document. The diagram is in vector format so it will scale with the zoom.
Note the positions of R26 and R27, the 68k
resistors. These will get pretty tight, especially
the middle lug which has four leads crammed
into one eyelet. I've found that it helps to
make a loop with one of the resistor leads
in the center lug and use it for the wire. I
recommend using the Refractor Bypass
PCB instead of doing it as shown, but if you
you don't, definitely use 1/8W resistors here
instead of 1/4W—they're much easier to fit!
R28 is a 100k resistor from output to ground.
You do not need to put it here, and in fact it
may be easier to run it from the output jack's
lug to the star ground on the input jack. As
long as it's connected to ground you'll be fine.
A 3PDT footswitch is shown below with only
the outer two poles being used. You can use
a DPDT here as well—depending on the type
of switch, it may even allow a little more room
for the resistors. My only advice is to avoid the
Alpha "X-wing" style switches, as those are
reported to have reliability issues.
KLON CENTAUR / REFRACTOR OVERDRIVE
PGND
+9V
IN GND 1.1
1.3 2.1 2.3
SLEEVE
TIP
R26
R28
R27
TIP
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