Combo Tremolo / Chorus

[familyortiz]

Greetings,
Anything out there like this? I am configuring a new pedal setup and want to try and cover both bases with one pedal.   Regards,  M.O.

[Mark Hammer]

Not really, since although they might share an LFO for modulation purposes, they would work off different technologies or "engines".  Too far apart, really, to get a "two-fer".

[asatbluesboy]

Maybe a double (normal and reversed) LFO driving two optocouplers: one driving a Tremulus Lune-like tremolo and the other driving a delay clock? I don't know nearly enough theory to even sketch it, though...

[nocentelli]

You can do a tremelo/vibrato quite easily -

http://i80.photobucket.com/albums/j190/Leeroyfunk/MagnavibeSchem_reedraw.png

This kind of simple two transistor vibrato can be made into a tremelo by simply switching the LDR from Q1 emitter to ground (and lowering R5 a bit to compensate for the perceived volume drop).

Chorus is a different matter altogether.

[Mark Hammer]

I'm a little vague about the intent of the OP.  Is the goal to have:
- one pedal that does both with a lower cost and smaller footprint than two separate pedals?
- a pedal that lets one switch between the two effects in real time, without having to lose the "pulse" of the LFO?
- a pedal that lets one combine the two effects i some novel way?

[Seven64]

magnus modulus.  you also get a delay 

[familyortiz]

I'm a little vague about the intent of the OP.  Is the goal to have:
- one pedal that does both with a lower cost and smaller footprint than two separate pedals?
- a pedal that lets one switch between the two effects in real time, without having to lose the "pulse" of the LFO?
- a pedal that lets one combine the two effects i some novel way?

I think your first goal is the most accurate. I started out by thinking of using my Zoom 606 to cover both effects but that unit isn't the quietest. It would be cool to see an all in one unit to cover more "ambient" type effects, for lack of a better term, that could be inserted into an effects loop. It sounds like the different engines needed would end up approaching the use of individual pedals. 

[ugly_guitar_guy]

...or go for 2 1590A designs for a trem and chorus. If you planned it properly you could probably squeeze two 1590A circuits into a 1590B box. That'd be a hell of a squeeze!

[asatbluesboy]

You can do a tremelo/vibrato quite easily -

http://i80.photobucket.com/albums/j190/Leeroyfunk/MagnavibeSchem_reedraw.png

This kind of simple two transistor vibrato can be made into a tremelo by simply switching the LDR from Q1 emitter to ground (and lowering R5 a bit to compensate for the perceived volume drop).

Chorus is a different matter altogether.

Isn't chorus = vibrato + dry? I was thinking about summing 3 signals: tremolo, vibrato and dry. Not sure that's what the OP wanted, though.