The Last Bass Outpost

Gear Discussion Forums => Bass Amps & Effects => Topic started by: chromium on November 17, 2010, 10:17:09 AM

Title: Leslie Amp
Post by: chromium on November 17, 2010, 10:17:09 AM
This is what happens when I try and help hook the keys player in my band up with leads on a Leslie speaker ;D

Anyone ever try one with bass?  The guy I got this from only had the "combo preamp pedal" to use it with.  That pedal provides the Leslie with its mains power via the big multi-pin cable, and provides a means of connecting anything with a 1/4" cable into it.  I took the BaCHbird over to test it - sounded nice!  Low volume (only 40 watts), but it dirties up in a good way.  I'll have to pick up one of those pedals at some point...  (I'd like to try it with guitar too)

Here are some pics of the beast.  Quite the nifty contraption...

Full frontal:
(http://i87.photobucket.com/albums/k125/0chromium0/forums/synth/hammond/DSCF0206a.jpg)

Backside:
(http://i87.photobucket.com/albums/k125/0chromium0/forums/synth/hammond/145-5.jpg)

All nakey.  Uses a crossover network with 15" driver firing into lower baffle (big spinning cork thing covered with fabric), and pair of spinning horns up top:
(http://i87.photobucket.com/albums/k125/0chromium0/forums/synth/hammond/145-6.jpg)

Horns:
(http://i87.photobucket.com/albums/k125/0chromium0/forums/synth/hammond/145-9.jpg)

Woofer:
(http://i87.photobucket.com/albums/k125/0chromium0/forums/synth/hammond/145-8.jpg)

Relays inside of the amp switch the motor speeds for the rotary effect.  You can signal them using that pedal, or in my case via a switch on the front of the hammond
(http://i87.photobucket.com/albums/k125/0chromium0/forums/synth/hammond/145-7.jpg)

Pretty inside:
(http://i87.photobucket.com/albums/k125/0chromium0/forums/synth/hammond/145-15.jpg)

(http://i87.photobucket.com/albums/k125/0chromium0/forums/synth/hammond/145-16.jpg)

6550s glowing in the night:
(http://i87.photobucket.com/albums/k125/0chromium0/forums/synth/hammond/DSCF0209a.jpg)
Title: Re: Leslie Amp
Post by: Basvarken on November 17, 2010, 10:59:16 AM
Beautiful!
Title: Re: Leslie Amp
Post by: jumbodbassman on November 17, 2010, 12:09:24 PM
always loved them.  B-3 next....
Title: Re: Leslie Amp
Post by: Highlander on November 17, 2010, 12:17:05 PM
... and some etiquette lessons from Sir Emerson of the Keys on the delicate use of the Hammond... :o

That would be a neat gadget to have in the arsenal...
Title: Re: Leslie Amp
Post by: Nocturnal on November 17, 2010, 12:32:13 PM
That looks WAY bigger than the one we picked up on Saturday  :o
Title: Re: Leslie Amp
Post by: Pilgrim on November 17, 2010, 01:40:13 PM
I think the first pic is the only time I've seen a Leslie with the back panel actually in place.  Seems like they were always used with the back off so you could see the spinning parts.
Title: Re: Leslie Amp
Post by: chromium on November 17, 2010, 01:42:07 PM
That looks WAY bigger than the one we picked up on Saturday  :o

Yeah this one is some serious hernia material!  It just barely slid into the back seat of Rebecca's car when I picked it up  ;D.  I don't have the right vehicles for this kinda crap, that's for sure!

The smaller Leslie has just the lower baffle with a single 12" driver and no amp - slaves off the hammond's amp.  That one and my other hammond are gonna hit the CL highway soon...


always loved them.  B-3 next....

The Leslie is what I've been missing all this time, and I just didn't realize how big of a role it plays in getting "that" sound.  That M-101 went from Ethel Smith to Jimmy Smith in one fell swoop!  Gives it that much needed grit.  Now it sounds dirtier than a legionnaire's socks!  (or something...)  8)
Title: Re: Leslie Amp
Post by: Highlander on November 17, 2010, 01:46:14 PM
I do remember a rather popular beat combo that came over here (78 or 79) with a full size church organ as a working backdrop for the stage, monster array of pipes and all...

Gregg Allman had his backlit iirc with a fabric front so you could see the contents spinning round at various speeds - Gregg and Cher tour... :rolleyes:
Title: Re: Leslie Amp
Post by: chromium on November 17, 2010, 01:49:54 PM
I think the first pic is the only time I've seen a Leslie with the back panel actually in place.  Seems like they were always used with the back off so you could see the spinning parts.

This one is circa early 70s, and lived its life as a living room fixture.  Not being picky about cosmetics, I was fully prepared to get one that looked like it was dragged behind the tour bus!

I think a lot of the panels go missing since the open back provides a vantage point for mics.  That's what's going on my Christmas list - mics.  I only have a single sm57 to my name at the moment.
Title: Re: Leslie Amp
Post by: chromium on November 17, 2010, 01:55:47 PM
Gregg Allman had his backlit iirc with a fabric front so you could see the contents spinning round at various speeds - Gregg and Cher tour... :rolleyes:

Hey, anything to help divert audience attention from Cher is a plus in my book...  Good lookin' out, Gregg!  ;D
Title: Re: Leslie Amp
Post by: gearHed289 on November 17, 2010, 09:09:29 PM
That thing's in great shape! Very nice. I've done a few flight cases for Leslie's and even an iso box for the Dave Matthews Band. Love that sound!
Title: Re: Leslie Amp
Post by: Pekka on November 18, 2010, 04:05:35 AM


Anyone ever try one with bass? 


Yes. My friend has a 147 and I plugged my 12-string Waterstone TP-2 straight into it. Huge sound! Hughes & Kettner Tube Rotosphere pedal works quite well too.

One of my plans is to have a small Leslie for the bridge pickup of the stereo 12-string bass. A breaker pedal is a must too, having a Leslie sound all the time would get a bit tiresome.
Title: Re: Leslie Amp
Post by: chromium on November 18, 2010, 11:58:44 AM
iso box for the Dave Matthews Band

That would be slick!  I've read that folks would put them in isolation chambers off or under the stage so they could get them mic'd without the other instruments bleeding thru.


Yes. My friend has a 147 and I plugged my 12-string Waterstone TP-2 straight into it. Huge sound! Hughes & Kettner Tube Rotosphere pedal works quite well too.

One of my plans is to have a small Leslie for the bridge pickup of the stereo 12-string bass. A breaker pedal is a must too, having a Leslie sound all the time would get a bit tiresome.

Cool - yeah I liked the sound of it with bass!  I was using this to connect to it:
(http://i87.photobucket.com/albums/k125/0chromium0/forums/synth/hammond/std_combo_preamp.jpg)

You can get those combo preamp pedals for different models (typical "reasonable" prices running around USD 75-125 on Ebay).  That one pictured works with the 122, 145, 147, etc..., and lets you leverage the Leslie amp and switch between the motor speeds.  You can indeed get a brake option for these things to stop the rotor dead, but I was thinking that another trick might be to just unplug the slow-speed motor from the amp assembly - that way when you switch to that slow "chorale" speed, the rotor will just spin down until it stops.  Or you could unplug the the fast "tremolo" speed motor - depending on which setting you prefer.  Cheaper/easier than a brake, if you don't mind the rotor spin-down instead of a dead stop...

My hammond M-101 came with a Leslie 120, which is a much smaller unit - I can carry and lift it easily by myself.  It uses a full range 12" driver firing into the lower baffle, and has no horns or internal amp but rather uses the hammond's power amp.  The Leslie kit on the hammond lets you toggle between internal speakers, the Leslie speaker, or both.  I really wanted the Leslie with an amp, though, so I could get more of an overdriven sound.  There's a trimmer on the back of the organ's swell pedal that you can crank to boost the pre-amp gain, and it sounds awesome through my 145 (which is fitted with the bigger 147 amp).

Anyway, I was thinking that the 120 might be a neat one to modify.  You can get those for dirt cheap compared to the big Leslies, replace the driver with something that handles more power or has broader freq response (if needed - sounds decent to me as is), and fit it with a 1/4" jack for the speaker input.  It has the same 2-speed motor assembly, and with some simple mains wiring/switching you could probably rig up a little floor box to swtich between the two motor speeds, or both motors off.  You could drive the speaker from an external amp, or bi-amp it.  The 125 is another good portable option - same cabinet.

Here are some shots of the 120:

(http://i87.photobucket.com/albums/k125/0chromium0/forums/synth/hammond/DSCF0210.jpg)

(http://i87.photobucket.com/albums/k125/0chromium0/forums/synth/hammond/DSCF0212.jpg)



Title: Re: Leslie Amp
Post by: Highlander on November 19, 2010, 09:31:02 AM
I don't think anyone's asked but sorry if I've missed it... how heavy...? :o
Title: Re: Leslie Amp
Post by: chromium on November 19, 2010, 11:54:50 AM
I don't think anyone's asked but sorry if I've missed it... how heavy...? :o

I'm guessing the little one is in the neighborhood of around 30 kgs, and the bigger unit is around 60.
Title: Re: Leslie Amp
Post by: Highlander on November 19, 2010, 04:58:58 PM
Is the little one the peddle...? ;D

66 or 132 pounds - that's a lot of hernia... ;)
Title: Re: Leslie Amp
Post by: pbassplayer on December 28, 2010, 06:21:43 PM
that is the same (cts) 15 spkr that is used in the older ampeg B15's
Title: Re: Leslie Amp
Post by: Rhythm N. Bliss on December 30, 2010, 05:08:31 PM
This is what happens when I try and help hook the keys player in my band up with leads on a Leslie speaker ;D

Anyone ever try one with bass?  The guy I got this from only had the "combo preamp pedal" to use it with.  That pedal provides the Leslie with its mains power via the big multi-pin cable, and provides a means of connecting anything with a 1/4" cable into it.  I took the BaCHbird over to test it - sounded nice!  Low volume (only 40 watts), but it dirties up in a good way.  I'll have to pick up one of those pedals at some point...  (I'd like to try it with guitar too)

Here are some pics of the beast.  Quite the nifty contraption...

Full frontal:
(http://i87.photobucket.com/albums/k125/0chromium0/forums/synth/hammond/DSCF0206a.jpg)

Backside:
(http://i87.photobucket.com/albums/k125/0chromium0/forums/synth/hammond/145-5.jpg)

All nakey.  Uses a crossover network with 15" driver firing into lower baffle (big spinning cork thing covered with fabric), and pair of spinning horns up top:
(http://i87.photobucket.com/albums/k125/0chromium0/forums/synth/hammond/145-6.jpg)

Horns:
(http://i87.photobucket.com/albums/k125/0chromium0/forums/synth/hammond/145-9.jpg)

Woofer:
(http://i87.photobucket.com/albums/k125/0chromium0/forums/synth/hammond/145-8.jpg)

Relays inside of the amp switch the motor speeds for the rotary effect.  You can signal them using that pedal, or in my case via a switch on the front of the hammond
(http://i87.photobucket.com/albums/k125/0chromium0/forums/synth/hammond/145-7.jpg)

Pretty inside:
(http://i87.photobucket.com/albums/k125/0chromium0/forums/synth/hammond/145-15.jpg)

(http://i87.photobucket.com/albums/k125/0chromium0/forums/synth/hammond/145-16.jpg)

6550s glowing in the night:
(http://i87.photobucket.com/albums/k125/0chromium0/forums/synth/hammond/DSCF0209a.jpg)


MIGHTY envious am I! C O N G R A T U L A T I O N S !

SRV used a Leslie in his rig, didn't he? As for bass, I imagine it'll stand up to the task.  8)
Title: Re: Leslie Amp
Post by: chromium on December 31, 2010, 10:54:31 AM
MIGHTY envious am I! C O N G R A T U L A T I O N S !

SRV used a Leslie in his rig, didn't he? As for bass, I imagine it'll stand up to the task.  8)

Thanks Terr!  That setup kinda fell in my lap- an overly generous local deal through another forum.  Really nice fellow... and our own Nokturnal was extremely excited to help me schlep it back home since he recently took up organ moving as a hobby interest!

In time I'll still need to get one of those pedal units to use the Leslie with bass, guitar, other keys... but I did get hold of an additional mic to use on its 15" driver.  It records beautifully!
Title: Re: Leslie Amp
Post by: Nocturnal on December 31, 2010, 11:27:29 AM
Thanks Terr!  That setup kinda fell in my lap- an overly generous local deal through another forum.  Really nice fellow... and our own Nokturnal was extremely excited to help me schlep it back home since he recently took up organ moving a hobby interest!

It almost literally fell in your lap a couple of times while moving it! I usually prefer to handle my own organ, but In Chromium's case I made an exception.  ;D
Title: Re: Leslie Amp
Post by: chromium on December 31, 2010, 01:56:23 PM
At least its all solid mahogany with clear lacquer from circa '64 - so as it crushed and maimed us, it did so with a highly resonant and open tonal character.  Not like those new poly-finished clonewheel organs...  

Hey - at a modest 3-400 pounds, it was almost like playing a Les Paul!   :o
Title: Re: Leslie Amp
Post by: godofthunder on January 02, 2011, 01:34:54 PM
Man that is in beautiful condition! I worked with a guitar player in the 70's who dragged one around, sounded great as I recall.
Title: Re: Leslie Amp
Post by: Grog on January 03, 2011, 12:45:57 PM
I picked up a Leslie 16 about a year ago, I never considered trying it with bass before, thinking it would buzz. The Leslie 16 or it's counterpart, the Fender Vibratone is what SRV, Clapton & many others used in those early recordings. It's a bit more portable, but doesn't have the horn. I have since changed the speaker to a 12" Peavey Scorpion that I had laying around, so it's sort of a Leslie 18 now. It doesn't have any kind of amp in it, so you can use any kind of head you like. The original footswitch, mine was missing, has a crossover to filter out some of the highs & lows. It has that swirly goodness, I'll have to see if it works with bass.....................

(http://i999.photobucket.com/albums/af119/Grog_03/Leslie16.jpg)
(http://i999.photobucket.com/albums/af119/Grog_03/Front.jpg)
(http://i999.photobucket.com/albums/af119/Grog_03/Back-1.jpg)
Title: Re: Leslie Amp
Post by: chromium on January 04, 2011, 09:44:57 AM
I picked up a Leslie 16 about a year ago, I never considered trying it with bass before, thinking it would buzz. The Leslie 16 or it's counterpart, the Fender Vibratone is what SRV, Clapton & many others used in those early recordings. It's a bit more portable, but doesn't have the horn. I have since changed the speaker to a 12" Peavey Scorpion that I had laying around, so it's sort of a Leslie 18 now. It doesn't have any kind of amp in it, so you can use any kind of head you like. The original footswitch, mine was missing, has a crossover to filter out some of the highs & lows. It has that swirly goodness, I'll have to see if it works with bass.....................

That is very cool!  Thanks for sharing those photos of the insides too.  I've seen the Vibratone cabs and wondered what they looked like inside.

Makes me think even more of modifying my little ampless Leslie 120 (also uses a 12" driver) to function more like yours.  As it stands, I have to use that multi-pin Leslie connector for connecting the amp (leeches off the Hammond's internal amp), powering its rotor and switching between speeds, and there isn't an input for connecting an external head to it - rendering it pretty much organ-use-only.  It wouldn't take much doing to add a mains connection, fuse, toggle for the speeds, and a speaker input.. hmmm...

I figured the Doppler effect might be fun on bass in certain contexts - melodic/chordal playing, experimental, etc...  I thought of this song, even though it's not a Leslie - more of a tremolo effect on the bass:

http://www.youtube.com/watch?v=grvr4nK4AZA&feature=related


I'm mostly looking forward to trying mine out with guitar, rhodes, and who knows what else!  IIRC, I remember reading that the backup vocals on Floyd's "Time" were run thru a Leslie for that swirling effect.  Also love Trower's Bridge of Sighs sound (although, I think that was a Leslie sim- Univibe?).
Title: Re: Leslie Amp
Post by: Grog on January 04, 2011, 06:02:04 PM
Cool effect! It could work! My Leslie sounds more like a phase when it's idleing on slow speed. If I ever make another switch, I'm going to try to incorporate a kill switch. The speaker & the speed switch both are connected through the five pin amphenol plug. I always thought that this would be a good way to modify a normal Leslie to use with a guitar head.

(http://i999.photobucket.com/albums/af119/Grog_03/Leslie16Guts.jpg)

It's a lot easier to hook a jack right to the speaker, then you wouldn't need all of the capacitors to filter out the switch pops. The original idea for the Vibratone was to patch it in between a Fender combo amp & it's speaker. I bought an aftermarked footswitch with a coil crossover, but I still like my home made footswitch that that sends the whole signal right to the speaker. You can EQ the extreme highs & lows on the amp.
Title: Re: Leslie Amp
Post by: Pekka on September 01, 2011, 04:20:31 AM
I finally got the "Leslie" I wanted for the 12-string bass. Not the real thing but a good enough alternative, Rotosphere Mark II. I'm pllanning to use it for the treble pickup channel and with the breaker on it serves as a preamp/booster to make the sound slightly distorted and when releasing the breaker it's the heaven of swirling sounds. :)

I recorded a sample using the Waterstone TP-2 12-string bass with the neck pickup (slightly panned to the left) going direct and bridge pickup (slightly panned ton the right) through the Rotosphere. Drive 2 o'clock, Output 12 o'clock, rotor balance a notch on the horn side (HF).

http://dl.dropbox.com/u/4322198/12stringplusroto.mp3 (http://dl.dropbox.com/u/4322198/12stringplusroto.mp3)
Title: Re: Leslie Amp
Post by: chromium on September 15, 2011, 02:40:23 PM
Hey Pekka- just saw your post.

That Rotosphere sounds good!  That's the smart way to go since you play out with it...  No way I'd ever drag that 145 to a gig lol.

I did manage to get it shoved into a closet in my space here.  Sort of a pseudo isolation booth, and I can mic it and also crank it up more that way without causing domestic disturbances  ;D