......Charger
- Got reply from Computronics ... that RSP-1000-48 is in stock !
- Emailed back asking for total price, so that I can pay immediately.
- This is the best ever !
- Also ... worked on 'Shunt' circuit, and other circuits required.
- Posted suggestion on rc-groups (here) and got reply.
- Further communication, trying to work out how to get it right.
......Control circuit
- Put wires on the circuit, and circuit in box.
- Thoroughly testing ... discovered that the LM338K is putting out full voltage ! Darn !
- More testing, and the LM338K is stuffed.
- But it had worked perfectly on the breadboard. It seemed to work on the circuit board (but I hadn't tested the voltage).
- Testing and thinking and studying, gives 2 possibilities: [1] the soldering heat was too high (I did have difficulty trying to solder to the can) ... or [2] kick-back from capacitors in the "hidden" circuit in the Contactor, frying it (idea from application notes to device).
- Decision: Buy another LM338K, and test it on the breadboard with the diodes suggested, and not through the contactor, then test with the contactor, then mount it without soldering it so badly !
