The idea of the Trik-l or Ampl are both pretty easy to figure and it is kind of odd that nobody has picked up the option to continue them as there are so many who would like to have one.
Part of that business decision may be just a guess from me. But if we look at how the BIM is now replacing the mode solenoids on Winnebago and assume the rest of the RV industry is going the same way, the idea of picking up that business may be clear.
There are likely far more , longer lasting places to invest than the Trik-l, etc. !
The idea is based on zener diodes. Those are really small little items like diodes but with a bit different function as they pass current in tow directions rather than one as most diode.
I picked this off the net:
When we had mode solenoids on all RV, the solenoid connected when the engine ran and that let the alternator charge the coach batteries as we drove.
Power moved from chassis side to coach!
So a Trik-L with a zener diode let power move from the coach side to the chassis side when we shut off the engine but were charging the coach by being plugged into shore power.
Power moved chassis to coach when chassis was high but reversed and moved coach to chassis if/when the coach was higher. And the Trik-L did it in a regulated/controlled way!
What may have stopped folks from picking up the business is that the mode solenoids became obsolete when the BIM replaced the solenoids as BIM is solid state and less prone to burned contacts!
When there is a solid state BIM involved, adding a zener diode to that BIM is so cheap and simple that there is going to be far fewer sales for the Trik lineup as it is going to be built into the BIM!
One of the problems with sorting trouble on solid state is that we can't see, hear, nor feel what is going on in them and the owner of the patent is not likely going to release the info on what and how the BIM does it's thing!
As long as folks are willing to pay big bucks to get the "deluxe" item, they are not going to mention it is based on adding a 20 cent diode!
The question comes down to exactly what each BIM may have built into it?
Is there a 20 cent diode built in or does it need a Trik-l setup added to do that job?
But the future of the Trik-L market is really not that promising when we look at how few RV now come out of the factory with a mode solenoid!
Folks kind of stopped buying horse shoes? They were great things but the demand is pretty flat!