The real one, Big Boy 4013 in action
Märklin "Big
Boy 4013"
The real one, Big Boy 4013 in
action
The Märklin Big Boy 37990 class 4000 on the
brand new test stand from
SFA Modellbau, Germany.
The original Märklin decoder (Addr. 40)
Front PCB panel
Original sound decoder in the tender (Addr. 41)
The new LokSound mfx decoder from ESU in a test setup
Wheel sensor connections
(Thanks to Dennis Gapinski, ESU, LLC. for his help)
Another test setup for sound adjustments. This sound is awesome!