Wow, that seems like a lot of drop.
Of course, you did not mention how much current you are using there.
You also did not mention the wire gauge of the test leads.
So, without those crucial pieces of information we are unable to really advise anything.
Have you actually measured the voltage at each end of the test leads? Both positive and negative?
Have you measured the resistance of the test leads?
Are you using decent banana plugs or some kludgy cheapie Chinese thing?
How are the test leads connected to the load? Alligator clips?
Have you actually measured the voltage at each end of the test leads? Both positive and negative?
No
Have you measured the resistance of the test leads? No
Are you using decent banana plugs or some kludgy cheapie Chinese thing? Old Pomona and generic from school
How are the test leads connected to the load? Alligator clips? Mini grabber and or alligators
I know I was a bit vague. The leads I have are Pomona mini grabbers I've had since getting my AAS degree back in 96. I also have several banana leads to alligator, but they are all old and I bought them when in school as part of the course work I was taking. (I don't know the actual cost or what I truly paid for them, the cost of the class included kits, books etc..)
My newer DMM, a Tripplet 9045 measures the a 5VDC set point (5.01VDC actual) as 4.993VDC so I'm almost certain is the leads or circuit. I threw together some very simply circuits with LEDS and resistors, so I was only pulling a few mA, .0125
I don't have anything substantial in the way of test leads and I'd like to put together a kit to keep with the supply. It doesn't help that I really don't have a true test load. So I'm looking for recommendations.
Cheers.