CAN RECHARGEABLE BATTERIES BE ADDED LATER, OR MUST THEY BE PURCHASED WITH THE BASIC BATTERY OPERATED SOUND UNITS?
Nope, if you desire, we provide instructions on how to add Nickel Metal Hydride batteries later. Small Scale Railway discourages the use of rechargeable batteries if you operate a small layout where the track voltage rarely exceeds 7V. If you don’t exceed 7V, the rechargeable batteries will never gain a sufficient charge to operate the sound unit (since the Micro-Chuff and Micro-Diesel require as little as 4V to operate and recharge, they are more flexible for use). DO YOU MAKE THESE SOUND UNITS YOURSELF? No, we designed it, but the manufacturing is left to machines at a SE Michigan company. The PWB’s were made in Ohio. The expensive circuit parts are made by US based companies in SW US. So the US made value add & assembly labor content is near 100%. WHAT ARE SOME OF THE TECHNICAL SPECS FOR THE MINI-PROTOTYPE SOUND UNIT? size: 3.7″ long x 0.6″ wide x 0.2″ high, without battery, speed sensor or speaker (N Scale 50 box car shape) power: 5.7V to 12V input voltage at the battery terminal i
