One dedicated circuit for each mono block?

@ditusa  you have given me something else to ruminate & worry about.

 I own a house built in the ’60s and when I bought it it did have the old style fuse box and there is one circuit with a few outlets WITHOUT the 3rd wire (ground). Is there a good chance there is some knob & spool going on here, and would I be able to see that by pulling one of those outlets and would I be able to identify it from what wire I could see from the removed outlet?

@dpop  , thanks!  I do have the tester already  (I was dropping some new lines in previously)  I take it that  the 'standard (non-isolated ground) outlet (which uses the conduit or metal clad cable ground)' you referred to will have the 3rd ground.  I wonder if tht is what they did in the rest of the house where the outlets do have the 3rd ground?  I have tested them all with the AC tester and the lights do illuminate properly as advertised.  I think that I should pull some of those outlets off & see what I have got going on back there. . . .

Thanks again, @dpop  I was behind my panel in the last few weeks adding some additional lines and I recall being confused that there was not nearly as many uninsulated grounds as there were whites on the neutral/ground bar.  what is interesting is that all of the 2 spade outlets are all the same circuit that they did not do.  Yuk, the more I learn the more I wonder what I paid the home inspector for 30 years ago.  

Okay, thanks @dpop  I am thinking I should pull one of those old outlets without the third wire and see what's going on back there.  We are not using them for much, some lamps, cordless phone, clock, etc, but probably enough to be a fire hazard?

Thanks @dpop  , this is educational.  I was just wishing that the home inspector I hired would have pointed some things out for me.  This was back in '92 and I had never owned a home before, so a lot of that stuff didn't mean anything to me (fuse boxes vs breaker panels, 2 spade outlets vs 3 prong outlets), just little stuff like that.  He did catch a furnace that failed the CO test, so I got that out of it.  Since then, I did have a breaker panel put in so I could run some dedicated lines, and I was there when the guy put it in, but if he explained anything to me about the existing circuitry, it went through one ear and out the other.  Anyway, thanks for explaining this for me.

You are right, @dpop  , I didn't know anything at all about houses back then so I didn't really know what to ask & I cannot blame the home inspector for my knowledge deficit.  I did get a report from him and a lot of that stuff may be in the report . . . if I looked hard enough, I could probably still find it.  And a lot of the electrical stuff that I have learned since (mostly quite recently) I only learned because of my interest in my system (which only started evolving in probably '94 or so).   If it hadn't have been for that, I'd probably still have the original fuse box.