☆ Operation confirmed Tenshodo SL1 Sound System + Operation check adapter included HO Model railroad 16th scale with original box -------------------------------------------------- Included: The SL1 operation check adapter is to be considered as a HO gauge steam locomotive. ① The draft sound is produced each time the top left button is pressed. (This is the same as the contact points provided on the locomotive driving wheels) ② The worm gear on the bottom right is the motor. Please consider this as the internal motor of a steam locomotive. (Forward and reverse operation can be confirmed.) -------------------------------------------------- Main product: The contents of the SL1 original box are the following three items: ① Dedicated box ② Cushioning material ③ Two types of instruction manuals All are included. I considered cleaning the panel overall with alcohol, but I thought the lettering would come off, so I haven't done any thorough cleaning. Even so, I think it's a beautiful item considering its age. The panel has been wiped with water in a clean area. Dust cleaning with an air duster has also been done. The power cord is flexible and can be used as is without any problems. There are some stains that are difficult to express in digital images. Please refrain from purchasing if you are sensitive to such details. An out-of-production analog controller. There are no complex address settings like a digital controller. It is the Tenshodo masterpiece, the SL1. The instruction manuals are also included, and I have confirmed normal operation with all possible operation patterns that I can think of. For full-scale use, processing of the contact points on the back of the steam locomotive driving wheels is required.