Hi! I have made some videos about my Victor multimeters. You can see what's inside.
Unfortunately videos are in Russian, but electronics is international!Victor 86E:
DCV, ohms measurement:
https://youtu.be/Wdu3qMmQrz0?t=5m7sInternals:
https://youtu.be/NVemYowSrPIOverview:
- Not have high voltage protection, and place for it.
- Small fuse
- AVG AC
+ isolated USB from box.
Medium accuracy
- Not have REL button from box.
+ Temperature measurement.
VC9807A+(9806 similar):
DCV, ohms, cap measurement:
https://youtu.be/mI7zogPAnE4?t=1m39sInternals:
https://youtu.be/9fP02oy6dWY?t=1m2sOverview:
- No high voltage protection, and place for it.
- Only 1PTC and current range protection (small fuse)
TRMS, but only 1kHz
+ Excellent accuracy of my multimeter.
Digital calibration.
Manual range.
- Not have REL button (may be modable, but I don’t find datasheet for main IC).