Ok,here's where im at ..
I fixed my mistakes and tested the unit for magic smoke, drawing a 4.75amp load for about 5 minutes. The heat sink got warm ,the resistor on the pot was lukewarm ,and the AmMeter resistor got warm but no cause for concern.
P5 now lets me set the current cut off limit, like it should be. Before the P/S wasn't doing this as it should ,It was all on its own doing cut ,limit but never anything that could be controlled ,other than reduced,probably more so from my grounding mistake
Internal sense circuit now works properly:
the current will be cut off when the value set by P3/P4 is exceeded.,once the situation is cleared the P/S resumes normal operation. before it would fall but not enough to completely protect the work or the PS..Cut is now just that Cut. again probably from my error
Because of my mistakes in grounding I think the transistor's latched because to resume I had to manually flick the Int/Ext switch..then the voltage and current was all messed up.after..The unit was acting like a slot machine ,never the same way twice..
All do to my mistakes.
The circuit once again:
https://electronics-diy.com/schematics/1090/laboratory-power-supply-circuit.png
My "Frankenstein"
The case started out as an AKAI stereo tuner,no amp or anything just a AM/FM receiver.I gutted it
.
I chopped out the face plate ,then cut a strip of sheet metal from an old VCR case,laid out my front bezel, cut and drilled ,then mounted the sheet on the Chassis plate with No More Nail's mounting tape,noticeably better than the 3 Stuff,
The transformer came from some audio gear,fused and switched using a 15amp,125 volt toggle switch from an old roof top A/C.
The mains current enters via an old computer monitor Mains plug in and its associated chord.
The heat sink is from a wine cooler, The fan/and fan controller cam from a computer power supply
The transformer out AC filter is bits from a computer power supply,the heat sink from a television the 8amp rectifier from a back up power supply.
I purchased the Tip3055's,7 seg displays ,Pot's and knobs. all other discrete components and hardware are salvage.
I built the Volt and AmMeter based on the ICL7107's,I built these units each with their own regulator on board so there would be no messing with regulators or such when they get installed. Any DC current from 7-37 volt would do.
This is about as environmentally friendly as I could get.