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Offline Giovanni Carboni  
#1 Posted : 24 November 2023 11:16:33(UTC)
Giovanni Carboni

Italy   
Joined: 08/03/2015(UTC)
Posts: 11
Location: Toscana, Pisa
Hello everybody,

I installed a Uhlenbrock 76200 decoder on my old CE800. Used in AC analog mode it behaves correctly, allowing direction reversal, but there is a small problem.
In order to reverse direction I have to rotate the transformer knob to zero, wait briefly and then push the knob for reversal. If I don't wait (rotating the knob suddenly
below zero) there are the lights flashing, with the motor clearly suffering overvoltage, and no reversal takes place.
I have a 74120 on another locomotive and this does not happen.


Is this peculiar to newer docoders?




thanks 1 user liked this useful post by Giovanni Carboni
Offline marklinist5999  
#2 Posted : 24 November 2023 13:57:40(UTC)
marklinist5999

United States   
Joined: 10/02/2021(UTC)
Posts: 2,997
Location: Michigan, Troy
Is this decoder meant for analog operation? I have only seen older digital locomotives run without any speed or direction control on analog systems.
Offline Giovanni Carboni  
#3 Posted : 24 November 2023 15:17:05(UTC)
Giovanni Carboni

Italy   
Joined: 08/03/2015(UTC)
Posts: 11
Location: Toscana, Pisa
Originally Posted by: marklinist5999 Go to Quoted Post
Is this decoder meant for analog operation? I have only seen older digital locomotives run without any speed or direction control on analog systems.


Yes, definitely


thanks 1 user liked this useful post by Giovanni Carboni
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