is a Four function N-scale drop-in for
the Intermountain F3A/B units and the F7A/B units.
NOTE: This version of the IMF4 is designed for the 2015
style Intermountain frame where the motor is connected
to the control board via soldering wires not the previous
style of using "Motor Feet".
||N Scale Supply
amp Motor drive rating
amp peak load
80mA function outputs
F3A/B units and the F7A/B units.
version of the IMF4 is designed for the 2015 style Intermountain
frame where the motor is connected to the control board
via soldering wires not the previous style of using "Motor
EMF Load Compensation for superior slow speed control even
with heavy loads.
Drive creates SUPER QUIET engine performance.
for realistic throttle response when using DC power.
Brightness of bulbs or LEDs is adjustable.
is the ultimate in DCC control thru the entire speed range.
Momentum lets you make custom acceleration curves.
Reset is faster and easier to reset to the default settings.
on DC stops the train with deceleration when in a DC block,
maintains lighting, then accelerates when DCC returns.
Gyra, Rotary Beaco n and Blinking Ditch Lights are adjustable.
Lock for programming same address decoders independently.
Control of the Motor Circuit: for a smoke unit, high speed
switching, or a variable brightness light up to 1.2 amps
Remapping: 13 buttons for most lights, 7 buttons for operations.
Mode Programming allows on the main track programming.
Program Modes are supported allowing use with any controller.
and Advanced Consisting for use with any controller.
- 28 /
128 Speed Step Control operating at 256 speed steps.
lighting features not listed above include Random Flicker,
Single & Double Strobe, and Constant Dim light.
Back to N Scale Supply
catalog page for : Train Control Systems