MTH Parts & Sales is expecting a restock of the Protosound 3 Steam Upgrade Kits in mid-March 2023. In addition to the upgrade kits we will also be receiving separate sale Protosound 3/2 Stacker Boards in both 5V and 3V variations.
In preparation for the delivery of these printed circuit boards we have pulled together a couple documents to help everyone understand what and where the Stacker boards can be used. For instance, the Protosound 3/2 Stacker 5V board can be used to replace any factory installed Protosound 2 5V circuit board and still retain all its original features. The same can be said for the Protosound 3/2 Stacker 3V board (with the exception of 3 locomotives). Attached below is the educational document we compiled which also includes the DCS Consumer Loader Instructions. Two documents that identify whether a model was delivered with Protosound 2-5 Volt or Protosound 2-3 Volt electronics.
If you are interested in obtaining any of these items we encourage you to use our "Wish List" feature within the site (find the item you want that is marked "out of stock, click on the add to cart button and enter your email address to be notified when it is put away and ready for sale/shipping).
The product numbers of the items arriving in March are as follows;
50-1911 Protosound 3 Steam Upgrade Kit
AE10000355V Protosound 3/2 Stacker - 5 Volt
AE10000353V Protosound 3/2 Stacker - 3 Volt
You can find these parts by searching our part inventory here
For any questions please feel free to email us at info@mthpartsandsales.com
Thank you,
Mike Reagan
MTH Parts & Sales LLC