Vintage MRC Sound & Power 7000 Transformer Controller HO O G Model Train

Vintage NOS 1990s MRC Tech II Throttle Control 3000GS HO O S N TT Model Train

MRC Hobby Transformer Control Master I Solid State Model train

MRC Sound & Power 7000 Train Controller Transformer HO/N/O/G *USED* NO SPEAKER

MRC Control Master II for Powering Electric Model Train

Vintage MRC Model 500 HO Train Control Throttle pack with box & instr-working

MRC TECH 2 Sound Generator System #8000 Steam & Diesel Train Loco Sounds NOS

MRC DC Control Master 20 transformer in box Lot #BLK17