Quick and dirty curve tracer. Part 1: Half baked breadboard

Just a quick video on the curve tracer build from Mr. Carlson's lab. I am planning on making mine a stand alone unit that may be used with any scope I happen to be using. Also, the +/- 15vdc dual output power supply is a nice little add on for the bench. Prototyping went well. Resistor values were slightly high causing a lower output frequency(around 940HZ) and the gain was so high I actually backed off the oscillator output voltage to 1.76vdc and still wound up with 22.3vdc output from the amplifier stage.
The power supply is a Mean Well PD-2515 dual output, regulated +/-15vdc power supply. Complete with rectification for the bargain basement price of $11.95 plus shipping. I plan on putting that in and enclosure and adding quick power connectors. It performed flawlessly through testing. Pulled very low current and hit stayed rock solid within +/-0.2 of desired voltage. After adding a 35v 220uF cap across each output, it is ripple is less than 4mV per output. Still laying out the project boxes and deciding how much of this I want to b

[dkmmhdk]

The Mr. Carlson curvetracer is great, I build mine as an external unit myself for the same reason you plan to.
PS: thanks for the comment on my latest vid, that's how I got here.

[patrickbouldinkml]

Did you finish making this? As an external? I'm trying to figure out what on ebay qualifies as a good scope to do this. I understand it needs XY inputs, or also EXT inputs. Example, does the HEath O 12 qualify? Don't want to get stuck with the wrong older scope. 73, KM5L