@gunrunnerjohn posted:Phasing is not critical as far as TMCC track signal, only if you use multiple transformers, obviously they all have to be in phase. All transformers used obviously should be isolated from any connection to the primary of the transformer.
I've seen quite a few Legacy and TMCC bases with low output voltage, including one of my Legacy bases. I no longer use the Legacy base to charge, I use the #993 charging base to charge my Legacy remotes.
Here's a simple rig to test track signal strength, and instructions for use:
Testing the TMCC/Legacy Track Output Signal
Wow, Thank you for the schematic. That will be a huge help. I'm a retired electronics test engineer so that schematic is a big help.
Just ran another test. With the remote in the base for a couple of minutes then it all works fine on track power up.
With e remote on the base for 30 minutes then the track signal is lost and trains start up on power up.
Wait 10 minutes with remote off the base and power up is then OK.
So Cjack is on to something, the remote in the base heats up either the remote or the base enough to cause the problem.
Im now testing the base unit with a styrofoam insert in place of the remote to see if base heating is the issue.
BTW the base or remote does not get hot, just warm to the touch.
I did eliminate the base charging and plan to use lithium batteries. Taped off the charge terminals at base.
Also ran a more direct signal wire run thinking it was too long and mixed in a bundle of layout wires for 4-5 feet.
Also check to make sure the Lionel Power house has a good ground at 3 prong plug.
Again thank you, I will use the test schematic on the base with it empty and with the remote placed on it.
Suspect we will find signal degradation when warm.
Roger
