Now that I have sound in the Atlas RS 1, it needs the appropriate Leslie air horn. My question is where is the horn mounted? Did it mount on the roof or was it mounted from the top wall of the cab and projected/ placed above the roof line?
Take a look here: http://www.frisco.org/shipit/index.php?threads/ron-chamberlain-horn-data.4164/ Most photos seem to indicate Leslie S3Ls would be the most suitable.