The model 147A is specifically designed for single-channel organs with self-contained speaker systems, such as Hammond Organ model A-100 and spinet models such as M, M-2, M-100 and L-100. It is identical to the Model 122XB, with the exception of having a 6-pin connector, and no ¼” or footswitch jack
Specifications
Single-Channel Input Two-speed horn and bass rotor