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BR140(#54213) with c95 decoder and #56560 sound effect circuit.

Tasks of the project:

 

Original arrangements of #54213

 

Points:

All equipments are removed.

Points:

Details:

<Speaker / Acoustics>

Points:

<Electronics Chassis>

Points:

<Head/tail light interface>

 

Points:

 

<c95 or c95/2?>

At first, I consider c95/2 is best decoder since this locomotive has two motors. But due to the less current consumption of the motors, it seems to be feedback control for load compensation does not works perfectly.

Comparison of c95 and c95/2(for reference original DELTA and 2x#60955):

Decoder

Load comp.

Slow running

Accel. cont.

Overheat

functions

org.DELTA

No function

N.G.

No function

No problem

No function

c95

O.K.

O.K.

O.K.

No Problem

4

c95/2

N.G.

N.G.

O.K.

No problem

4

2x#60955

O.K.

O.K.

O.K.

No problem

2

According to this result, I chose c95 for this unit.

2x#60955(in same address settings) also works fine. It will be a good choice for any other application. But in this case f3 and f4 cannot be available(but with 'shunting mode' by turn on f4).

<How about overheat problem of #56560?>

Almost all part of MAXI BR140 made of steel or cast metal and has enough inner capacity. So the loco has good radiation character itself. During bench test there are no thermal problem.

<Final fitting>

Points:

Conclusion:

 

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Copyright 2000 by Jun Maeda / KOBE JAPAN