These organs had Tremelo. This one pictured was the first Conn Organ I ever played. I was most fascianted in the early 60's by the sound of this organ compared to the Hammond I was so accustom to as well as the Baldwin's I played on at the local dealers. The stops were all pitched at 8' with couplers from 16' to 1 3/5' to bring out the upper and lower pitches. It had inter and intra manual couplers. It is a nice all tube organ if it works properly and has the individual oscillatiors so often mentioned about the Conn and a few other brands of organs.
The long narrow stop tabs were so unqiue, and the sound was awesome and smooth compared to the percussive Hammond and buzzy sounding Baldwins. Below the stop tabs there were cards that were placed over and around the stops to aid in choices of registration. Since this was located in a church the cards used for church playing were blue. Other colors were for other types of music. I was invitied to play this organ at a gospel singing when they sang a few hymns with the other gospel speicals and songs. I also would go early each month when this church sponored the gospel singing and would play for nearly an hour before the people began to gather.
As I reflect back on those days a Conn like this might have been a very good choice for me. They had great brochures and literature regarding the features of these organs. I did play on a few others of this series with the percussion stops located on the lower right of the bottom manual. They played from the lower manual only which was unique since percussion on other models and brands played from the upper manual.
Not too long back I was trying to find out if one of these models not all that far from me was in working condition to play. However the guy didn't get back to me, and apparently it wasn't or he let it go for the tube and amp. He said it was worth more to sell the tube and amp to the guitar fans.
Yes this organ is from the days when organs were built well and they did their best to have great sounding stops in lieu of all the bells and whistles, auto rhythm machines, and fancy fingers, etc. They are the perfect analog organs that so many of us older ones grew to enjoy and favor so much.