Uploaded May 2025 | Updated September 2026, 2 weeks ago

---

In this video, I did a review and teardown of a DSO-TC4, an oscilloscope/component tester/function generator combo device from Fnirsi. Product link: amzn.to/3GjVtWR

00:00 Overview
03:16 Power on, resistors
05:45 Capacitors, test waveform
09:14 Inductors
10:25 Diodes
12:34 Transistor/MOSFET/SCR
14:08 Zener Diode, IR decoding, voltage testing
17:31 Oscilloscope mode, bandwidth test
19:38 AM/FM modulated signals
20:56 Signal generator
22:00 Teardown, current consumption, conclusions