Several versions of the EIS relays are available for standard 122 and 147 family Leslies. However, the EIS-9V is a special version designed for non-standard installations where the original Leslie amplifier has been removed and the user desires to implement their own motor control system. The EIS-9V is supplied with a small transformer which powers the relay and also provides a low DC voltage source (isolated from the AC line) which allows safe remote tremolo switching.
In addition to basic fast / slow operation, the EIS-9V can also provide the Leslie with a stop function. In order to implement this feature a 3 position switch (or two 2 position switches) will be required.
While the EIS-9V provides all the electrical functions required for a custom Leslie motor control system, the mechanical implementation is left entirely to the installer. A suitable enclosure, AC power inlet, motor sockets, etc. must be selected, purchased and assembled by the installer. Since each of these custom built systems will have unique construction details, it is not possible to provide detailed installation instructions for the EIS-9V.