Vibratrem or???

[petemoore]

What I'm typing about is the effect on the song "Mama Told me not to Come" by Three Dog Night...
 And I know it's organ, but the part that's organ alone, there's an effect on that that sounds like Vibrato and Tremolo in unisen.
 Anyone know what that is or if an effect for guitar could be 'wrangled' up to mimic it? The source organ sounds a little bit "clean guitar like anyway.
 I don't know that "Vibra" fits the description, but it definitely sounds like Tremolo [cyclic attenuation/non attenuation], and warbly.
 An effect like that [in a box] for guitar/organ would be cool.
 I might even try building one, sounds like it could be a bit complicated..the vibrato part especially.
 1 LDR per tremolo and Vibrato maybe running off of the same LED?
 Ok...what about a Phase/Trem seriesed, anyone hear of a cool effect that has these two circuit types timed to cycle in unisen?...er...something cool like that?

[Lonestarjohnny]

Pete, it mighta been a Fender Vibratone cab hooked to the organ or a Leslie, you can do a google on [song's recorded with] and maybe find the info
JD

[petemoore]

Clean, Whacky sound ! ! !

[Lonestarjohnny]

Check out the MP3's over at, [inside the Fender Vibratone]
JD

[RDV]

Sounds like a Wurlitzer Piano through a Univibe on vibrato mode going pretty fast(rate). I say this cause there's definitely some straight Wurlitzer in there too.

Just a guess

RDV

[chumpito]

Sorry, I don't know the song, but I have an organ with tremelo, vibrato, tremelo & vibrato mix, and something called vibrato magic.  You could look up some organ schematics and try to extract the circuit for that if you wanted to take it that far.  (I can't find a schem. for my particular organ.)

[R.G.]

I have an organ with ... something called vibrato magic.

That might well be the old Thomas Organ "vibramagic". I adapted that trick to the EA tremolo after reading about the Thomas circuit in an old organ book.

It's tremolo if it's how Thomas did it. Of course, the same trick can be done to the LFO on a phaser or flanger for true vibrato starting after the note as rung for a few milliseconds.

[dr]

....I run a Fender Rhodes into my Deja Vibe,at the chorus setting;back off the intensity a bit,and set the speed control for a bit faster trem,and it nails it......I've been playing this song on the the strat this way also when I don't have anyone to help me lug  the Rhodes along.....

[BD13UK]

I used to do that Three Dog Night number with a band some time back, we didn't have a keyboard player but I could get uncannily close using a Voodoo Lab Microvibe with the Strat in the key of G using a fingerpicking style with the open G chord shape, I suspect any of the decent vibe pedals will do it though it certainly sounds like either a Wurlitzer or Rhodes on the record through some type of vibe.