Alaonix 7800 7" Two Channels Digital Curve Tester PCB troubleshooting tool:

Alaonix 7800 7" Two Channels Digital Curve Tester, Model 7800 is a Benchtop device. User can use it to check electronics semiconductor – transistors, diodes, zeners , capacitor and resistor…..

Alaonix 7800 Two Channels Digital Curve Tester Video:

CRT (analog) and LCD (digital) Screen Noise Compare: