Louis occasionally has a few vintage Hammond organs & Leslie speakers for sale. At the present time, he doesn't have any organs or Leslies available, but please check in regularly if you are in the market.
Louis is a professional organist who has owned or played hundreds B-3's in his long career, but none have been more "clean" than "Betty the B-3," which he sold last year. Remarkably, this organ looked and sounded virtually identical to how it looked & sounded when it rolled off the Hammond assembly line in 1958. 
Often, Louis sells the lesser known, but sonically and mechanically identical, Hammond models C-3 and A-100. A little-known fact: many classic “B-3” recordings were actually made with Hammond C-3’s or A-100’s. [see photos below]
Jimmy McGriff Larry Young
Jimmy Smith Jon Lord (Deep Purple)
The Hammond model C-3 is simply a B-3 housed in a different cabinet—more of a traditional church organ look, but with the same dimensions as a B-3. The A-100 was designed for the home and features a slightly more compact cabinet than the B-3 or C-3, with built-in speakers, amplifier, and reverb all packed in. A-100's can be adapted to play perfectly thru Leslie speakers, and all of Louis’ A-100's have been so modified.
Regarding Leslie speakers: the earliest Leslie models had a single speed (stopped or fast) and 20 watts RMS of amplification. Later models had an added speed—slow or “chorale”—and had 40 watts. (A few models had 40 watts but only one speed.) The one-speed Leslie models can be converted to two speeds by simply plugging in a “Hamptone” conversion kit ($289). As far as the wattage: for professional use, 40 watts is a must, but for home or studio use, 20 watts is plenty.
The organ pictured above is a 1959 Hammond C-3 that Louis sold for a price of $2,000. The organ sounded amazing and was in essentially brand-new condition.
The organ pictured above is a 1962 Hammond A-100 that Louis sold, paired with a matching Leslie speaker [see photo below], for a price of $1,800. Both the organ & speaker were in absolute mint condition; Louis purchased them from the original owner, a church organist who lovingly maintained the organ over the decades.
The organ pictured above is the same A-100 as in the previous photo, here paired with the matching Leslie speaker that Louis purchased it with. The Leslie was a model 44W, perfect for home use.
Another organ Louis sold, several years back, was a model B-3 and Leslie that he sold to a student, Nike design legend Tinker Hatfield. In a 2017 Netflix documentary about Tinker, he's shown in the opening segment playing "Green Onions" on that organ!
