Ibanez - AF-9 Auto Filter

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lohstah
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Post by lohstah »

hi everybody,

does anybody have a schematic of the maxon/ibanez af-9 ? i´m curious to see how it differs from the mutron. i know there is an afl schematic, but are they the same (with the omitting of the hp setting on the afl) ?

cheers,
lohstah

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Dirk_Hendrik
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Post by Dirk_Hendrik »

Let's put it like this:
Since some 2 months I finally have a AF9. It is on my tracing wishlist. No ETA though.
Sorry. Plain out of planes.

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mirosol
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Post by mirosol »

Any news on this one Dirk?

I got one of these couple of weeks ago. Sounds really good. I'm wondering if it's closer to AFL or MXR Envelope Filter...
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Dirk_Hendrik
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Post by Dirk_Hendrik »

Strange. I would have sworn I traced this one ages ago. Not...

But to answer your question,
Closer to the AFL.

And please check all (3 if I remember correct) 47/6.3V electolits for leakage (blackening traces under them are easiest way to tell) and replace em.
Sorry. Plain out of planes.

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mirosol
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Post by mirosol »

Thanks for the tip! I took some photos of the box, in and out, but didn't check anything too closely.
Some notes on my unit:
http://mirosol.kapsi.fi/2013/08/ibanez-af9-auto-filter/

Why on earth there are 6,3V caps in there :)
+m
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Nocentelli
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Post by Nocentelli »

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mirosol
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Post by mirosol »

I suspect that would be the size of a pizza box :)

it does sound very, very good.
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Post by FloPoeKo »

Hi Folks, I have a vintage Ibanez AF-9 Auto-Filter and it makes a squeeling noise that almost sounds like a feedback when the effect is engaged.
What could that be?
I could´t find a Schematic for it, but I have another one for the AFL which I guess from the ibanez product history must be the same circuit...

Thanks in advance...
Attachments
ibanez_afl_schematic.png

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Post by roseblood11 »

The AF9 never was traced? We are getting old, folks!
It's one of the best sounding auto wahs of all time, and it's not even very complex...

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Post by roseblood11 »

I found a lot of pedals that seem to be identical:

Ibanez AFL
Ibanez AF9
Maxon AF9 (reissue)
Ibanez AF201
Maxon AF201
Maxon AF-01
Maxon AF-F1 "Fireblade"

Maybe there are even more, with other brand names?

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Post by roseblood11 »

A clone of the AF9 with the (switchable) distortion circuit of the AW7 would be the perfect auto wah!

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