Stay Alive

[bossy]

Just after some advice as I dont want to fry my ESU V4 decoder in getting a class 73 to run correctly...or without stopping because the track is 0.00001mm out of level.

 

Currently have a home made stay alive capacitor fitted 25v 2000UF but the loco sound and wheels stop immediately. I plan to add another 24v 1000UF in but not sure if it should be in series or parallel web appears to say both! 

 

Advice much appreciated

 

Thanks

[smokebox]

Parallel will increase the overall capacitance. Series connection increases the working voltage but will reduce the overall capacitance.

 

Edited to add further info.

[Nigelcliffe]

And even 4700uF is fairly small, though should be starting to see an effect.  

I have put as much as 160,000uF into 4mm scale locos (using super-caps, not the cheap and somewhat bulky electrolytics).  

[bossy]

 thanks for the advice so parallel is the way to go. I thought my current install was not working but it appears as suggested above not enough.   

[Phil S]

parallel but only if they are of sufficient voltage rating !!!   Otherwise you have to use several in series to get the voltage rating  - this is common with the super-cap solution.   A combination of the 2 is what you wil probably find in the larger versions .

[bossy]

just an update purchased a TCS TA1 capacitor ok £25 quid but it works and loco runs great now. 

 

With sound thinking that the single capacitors are not really enough.

[norman]

Hi Bossy

I assume you mean a TCS KA1 which is a super capacity pack

 

KA2 is also available and excellent value

 

regards

Norman