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Opinions on Octave Fuzz circuits

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6/15/2000 12:43 AM

Opinions on Octave Fuzz circuits

Hi all--
Ever since I did mods on my V847 wah and heard the octaving effect it gets with certain settings, I've been thinking of building an octave fuzz.

Any opinions on which circuit sounds/tracks best with multiple pickups (not just neck with tone rolled off)?

I've looked over a lot of the circuits on Aron's page, and printed out quite a few, so I've seem a lot of different approaches....

TIA for your advice!

C ya,
Dutch

6/15/2000 2:35 AM
jason	I've built the tycobrae(sp) octavia and the foxx tone machine and the foxx tone machine is my fav by far. jason

6/15/2000 3:38 PM
Roger	I second that. The Tone Machine not only does a great octave, but the fuzz is great as well. Pick up R.G. Keen's toner transfer kit. Roger

6/15/2000 5:15 PM

Thanks guys!
I just went to RS.com last night to get myself a breadboard. No more soldering parts on vectorboard while experimenting!!! While I was there I got the parts for a Foxx, figuring that I could build something else if it didn't work out, or if you all reccommended against it. I was looking at the various circuits, and it was a toss-up between that and the Univox circuit initially. I am also going to try the MOS Doubler on GEO later on.

I had to sub for the original NPNs and ended up going through a bin of 2N2222 with a transistor checker to match 'em all up for similar hFe. I ended up with a batch all falling in the 155-160 range.

I also got a few 2N2907 with similar hFe, as I have a circuit I'm working on that uses a pair of NPN and a PNP, with a JFET source follower at the front end to buffer it.... If it works out, I'll post it for you guys to try out.

C ya,
Dutch

6/16/2000 11:36 AM
GFR	Look at http://www.geocities.com/SunsetStrip/Studio/2987/octave.html

6/16/2000 4:28 PM
MKB	I have a Foxx Tone Machine clone and a Univox Superfuzz, I like the Tone Machine better. The octave in the Foxx is a lot of fun, very pronounced on a neck pickup and total grinding noise with chords. I added a footswitch to switch in the octave, great fun!

6/25/2000 4:57 AM
dutch	Hi all- Build report: Well, I breadboarded the Foxx, and it seems ok, but the octave isn't real prominent. It seems to fade in after the note a little. With the octave switch closed it sounds best. With that switch open, it gets this pinched, nasal tone that I don't like as much. Still, I guess there are other octave circuits to try, like that MOS Doubler, and the Octavia. C ya, Dutch

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