Cheap and Nasty or Low-Cost Unicorn? ☢️
21:35
It's World Famous, but is it World Class？☢️
34:58
A Tiny Micro-Spectrometer - Reviewed [Pt2]
1:02:17
Restoration Old Burned Professional Power Amplifier // Restore Damaged Audio Amplifier
16:16
Better Geiger S2 comparison with another low cost scintillator detector
13:01
Buying a Vintage Geiger Counter ☢️
9:17
Radioactive Mystery box part1 with Radiacode 103 & Pudibei NR-950
9:33
a DIY x-ray generator ☢️
25:37