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An AC transformer with a house ground pin connection is required.  This linked thread discusses correct wiring between a transformer similar to the one pictured below and the TMCC base.

The highlights from that earlier thread are:

- the plug that connects to the TMCC-1 Base is a 5.5 x 2.5mm barrel connector

- the barrel connector's outside sleeve needs to be wired to 1) the center (house ground) screw terminal on the new transformer and 2) to one of the new transformer's outer screw terminals

- the tip of the barrel connector is wired to the remaining unoccupied screw terminal on the replacement transformer.

TMCC 1 Base Replacement transformer - connections


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  • TMCC 1 Base Replacement transformer - connections
Last edited by SteveH

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