One of my favourites - the Foxx Tone Machine. I've posted a couple of layouts, one stock, the other is the Aion FX Vulcan. The Aion FX mods make the Foxx even better - I prefer it with the mid switch mod.
The mid switch mod really gives this circuit a lot more range. The diode switch is also interesting - with the octave off, one diode remains in the signal path. The diode switch bypasses this diode for a slightly different sound.
Apart from the 10uf from Q3 to ground, all other capacitors can be replaced with 1uf electrolytic or poly caps. Might save some space, or maybe you prefer polys over electrolytic in the signal path.
My only disappointment with making the Foxx, is that I can't replicate the incredibly seventies looking velour stompbox enclosure.
FOXX TONE MACHINE - VERO LAYOUTS
Or something a little more traditional in terms of size and where the wires leave the board. I could have made the board smaller, but I was going for something with plenty of room around components.
FOXX TONE MACHINE / AION FX VULCAN - VERO LAYOUT
Read the build docs on Aion FX for the Vulcan to find out more.
FOXX TONE MACHINE ON THE BENCH (WITH MODS)
Nice layout. On the Aion version, the mid-switch makes all the different. I'd recommend this to anyone on the fence. It's the best octave fuzz I've built.
ReplyDeleteThe Tone Machine with Aion mods is one of my favourites
ReplyDeleteIs there a way to add footswitch (on/off) for the octave? Thank you!
ReplyDeleteHey - yes there is. The toggle switch is wired the same as a foot switch. Just use a stomp switch instead.
DeleteI think I will add foot switch between the board and the toggle switch, if theres different octave options.
DeleteCheck out the Aion FX Vulcan for some interesting switching options.
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