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Vintage field-coil Jensens are great speakers ! Sorry. All I've got these days are a pile of vintage JBLs, Gauss and Altecs !

Hello -- try using your ohm meter on the motor. No ohms?? The windings are probably bad and the motor needs to be replaced. There are two motors on the older Hammond models; the Start Motor, and, the Run Motor.

The Leslie "Pro" series was made to compete with high amplified guitar amps -- I guess Leslie decided that the bass slow rotor speed was not critical and that "foundation" bass notes without the Leslie-effect was best. Another problem is changing out the motor belt, which is very difficult on the 900 series Leslies. And, not having a two-speed motor system on the bass cabinet means that it can be safely transported in any position - back, down, side, etc. With a two-speed motor, the bass cab motor could be damaged in any position except right-side-up; this is true of any two-speed Leslies, including the 122 and 147.

Thanks so much for the information. I’m a sucker for Leslie speakers so I’ll probably buy it regardless. Thanks again!

Nope -- the bottom motor is is fast/off motor and is mounted upright -- I guess Leslie's thought was to have a solid "pedal" tone on stop and to also reduce problems with the two-motor shaft sticking due to rough moving...

Hello, Kenneth -- I have good, used original cotton Leslie belts for $30. I like these because I can set them to "slip" and therefore have slower bass rotor start-ups with slower rotor slow-downs; but that's my preference. New "space age" polymer belts are also available from BBOrgan.com. Check it out: www.bborgan.com/products/belt-leslie-speaker-space-age-polymer-upper-lower-set?_pos=6&_sid=2d08e0c88&_ss=r Hope this solves your problem ! - John at John's Hammonds

Leslies can sometimes be factory wired per organ manufacturer's specifications for specific speaker outputs such as reverb, percussion or special effects. Thus a Leslie-715C might be specially wired for Conn Organs; or, a Leslie-715R might be specific to Rogers Organs. Hope this helps.... John

...glad you found this video of interest. - John

Please let me know if this Hammond video helped ! - John

Some I purchased a C2 spring of last year 2022 and powered up great but has been sitting for almost six months not turned on and today 1/16/2023 the run motor failed me and I discovered this video.😢 When bought it was oiled but not smooth and quit. I removed the back panel today 1/16/2023 and the cup above the run motor was over filled so I used some tissue to absorb most it!

Tonwheel General Hospital -- www.tonewheelgeneral.com/search_results.php?searchterm=power+resistor&searchtype=Parts+Database

Yes, the 715 will work, but you'll need a connection kit. The easiest Leslie to connect to the A100 is the 145/147 "universal" Leslie. I'm in the Sacrament, CA, area. Cheers ! - John's Hammonds

@@johnnoxon9632 I have the 1937 museum organ

@@rothmyers1404 Hello, Roth. I have a functional 1936 SN#610 Hammond Model A in mint condition. Where is your Hammond on display? Amazing instruments !! -- John

11-pin controller; or, any Hammond with an 11-pin outlet.

Hello. This 415 is stock. I was just demonstrating functionality, and, as you can hear, has pretty good range and clarity after my restorations. I was not attempting to demonstrate superb playing skills -- you can listen to those elsewhere on RUclips. Cheers !

This is a modern 11-pin Leslie connection. Plugs directly into modern Hammonds. I've also used it with my B3 using a Trek II Controller.

Thanks ! Glad you saw the demo ! The purpose was not to demonstrate my skill and ability, but rather sound and functionality of this low-cost, entry-level Leslie. I've been playing and repairing Hammonds and Leslies since the "Monterey Pop Festival" era and I never sell a vintage Leslie without demonstrating functionality -- what you saw was a "witness" test of functionality. Cheers !

What should I expect to pay for this model (used) in great condition ?

Hello - this speaker is connected to my Leslie 44W amp. Some call these "70-volt" speakers; I imagine it varies between amps and applications.

@@johnnoxon9632 Thank you!

Hello, Jeremy. Thanks for the comment. The Leslie 910 does not have dual-motor, fast/slow stack. It has the single "fast/stop" motor only. Check the speaker specs. -- John

@@johnnoxon9632 If I was still a young guy to Tote this Leslie around, I would add a Dual Motor Stack to the Bottom for i have seen it done. The 900U Model had a Dual Motor at the bottom. The Leslie 760 was the best Solid State Leslie IMHO. i I hate I sold BOTH Leslies years ago !!!

@@terrencemiller5284 Hello, Terrance. The Leslie 900 series has a very complex device called the "Space Expander" that is supposed to give a "rotating" sound to the bass frequency. Some people disengage the Space Expander (it get power from a belt connected to the horn fast/slow motor) and add a dual speed motor to the bass. It's a simple fix, but Leslie engineered the 900 series with only a slow motor for the bass, so they must have had something in mind !! Yes, I had and sold two 760's -- essentially industrial versions of the 122/147 Leslie. Cheers !

@@johnnoxon9632 John, can you do a Video of just the "Space Expander" Audio ( turn the Horn and Rotor Audio off ) ? It was long ago when I had both the Leslie 910 & 900u in my Procession and really paid no attention to that Space Expander but i would like to hear it !! Thanks

@@johnnoxon9632 I think the " Space Expander" was only for the upper 6x9 Speakers and not the Bottom Rotor. The Bottom Rotor was just "Dry" on Slow Speed. I would choose the 760 over the 910 but the 910 would maybe sound cool for today's Synth if you add Coaxial 6x9's

Hello, Chris in Chile. There was a time when a great many American warships carried Hammond organs as standard issue for their on-board chapels. Thus many Hammonds could be found far-and-wide and the ships were decommissioned and shipboard items sold off. Still, you might check your port cities for vintage Hammonds. Best of luck to you. -- John

The speakers are connected to a Leslie 44W amp which provides both A/C to the coil, and signal DCV to the field coil. The jensen F15LL speakers are wonderful.

Glad you liked the video ! -- I used to use a Twin Reverb with my Leslie -- used one channel for a horn "bleed".

To clarify I’m wondering if It might be necessary and or possible to reduce the volume of those little speakers up top so that I’m not getting too much stationary sound and not enough swooshy Leslie spinning... or are those sending the audio from the rotary units? Thanks again

@@stevenvasquez7726 8/13/2020 Hello Steven. Check out my listing on CraigsList at the following link: sacramento.craigslist.org/msg/d/roseville-leslie-rms-watts-4-amps-6/7175212317.html There are 4 amps with 4 volume controls; additionally, there are two cross-over adjustment controls on the exterior side. -- John's Hammonds

Hey, Terrence -- you're right about this Leslie having just a stock single motor speed (fast/stop) on the bass drum. A Fast/Slow motor could be added easily enough by just wiring to the upper motor stack. However, Leslie may have been looking for the sustained bass sound to clean-up "heavy" chords at the high volume levels this Leslie was designed for...

@@johnnoxon9632 Thanks and yes sir ! Actually some of the Leslie 900s ( I had a 900U ) had 2 speeds for the lower rotor. The 910 replaced the 900 but not the slow speed for the bottom rotor.

Hey, Marcus. You're right about the Leslie 720. They are really mis-understood. Even Capt. Foldback left them out of his List of Leslies -- something I hope to change as I've recently sent him video and photos. Cheers !

Hey, Marcus -- you're very right ! The Leslie 720's are excellent speakers but very few people know about them. They're full range with the "helicopter" tweeter, two 6x9s, a spinning 8" midrange like you'd find in a Leslie 16, and a stationary 15" !!! Amazing !!

Wanted to know could I add this to an old Hammond with the tone cabinet speaker that presently would like a tin can

He does have it on his list​@@johnnoxon9632