Hi, I have a Mighty-MITE (Reg TM) manufactured by LH Research, it is working at 6.0V 65 Amps (I haven't tested that capacity) and 2 voltages 13.0 at 8A apiece. The model No. is MM23-E1654/115 I hesitate to try experimenting with the terminal strips until I have, at least, an idea of how the terminals work, the labels are as follows:- TB-1 7 6 5 4 3 2 1 labels ACC AC GND PF ON -S1 +S1 OFF No problem with 5,6 & 7, but what is PF and -S1 and +S1 and how do I use them, where does the on-off connect to ?? ground?? or what? TB-2 1 2 3 4 5 6 7 8 labels +S2 +V2 -V2 -S2 +S3 +V3 -V3 -S3 I can see that the S's are for switching but how would you use them in supplying voltage to a circuit, could they be for remote sensing of the voltage to the equipment you are running? I would greatly appreciate some help Thanks es 73 Peter. VE7AHX.