DSO138, Not Even Once

Before you buy a DSO138 or DSO150 from ebay, amazon, wish or aliexpress, it is important to understand what you are getting. The specifications are …

My Equipment

Here is a list of the different electrical equipment I have in my possession.

Power Supplies

Likriktare ESP630, 2 – 57 VDC 25 A

Danica dual 0-30 VDC 2 A bench power supply



0 – 230 V, 12A, housed, single phase

0 – 260 V, 8A, housed with Volt/Ampere meters, single phase

0 – 230 V, 6A, housed stack of 3 for 400 V in Delta connection, three phased

0 – 230 V, 25A, housed stack of 3 with motor control for 400 V in Delta connection, three phased



Application BS-310S, 2 channel, 15 MHz, dual trace, analog

Rigol DS1054Z, 4 channel, 50 MHz (upgraded to 100 MHz), digital storage oscilloscope


Oscilloscope related equipment

Tektronix P5200 differential probe

Tektronix A6909, 2 channel high voltage isolator

Pearson Current monitor model 110 (5 kA)

Pearson Current monitor model 101 (50 kA)

Ion Physics Current Monitor (100 kA)


Signal generators

Hewlett Packard 3310A Function generator

Hewlett Packard 3325A Synthesizer / function generator


Other test equipment

Hewlett Packard 8903A Audio Analyzer

uTracer3 vacuum tube / valve tester

Handheld 30kV analouge voltmeter



Fluke 8842A table multimeter

Fluke  117 True RMS multimeter

Elma BM805 Digital Multimeter

LCR Meter, cheapest I could find off of Ebay, good accuracy to the price.



Weller WECP-20 soldering iron