Скачать или смотреть How to use a Digital Oscilloscope...to test your tube amp! AT THE BENCH!

The previous video detailed how I use the multimeter to test voltages in a tube amp, this clip deals with the Oscilloscope. I cover Scope basis, generating a test signal, tracking the signal through the amp and finally how to measure RMS output power.

Our test amp is a Mojotone 45 kit that was built by a local player and brought in to me for completion.

0:00 Intro
0:53 Scope basics
6:43 Signal generator
9:22 Connecting to the amps input
11:35 1st gain stage
14:00 Volume wiper
15:42 Mix resistors
17:03 V2a gain stage - AC Coupling
20:03 Cathode follower - tone stack in
22:50 Treble wiper
23:27 Phase inverter in
24:05 Speaker output
26:24 How to measure output power
28:32 Outro - possible mods?

https://headfirstamplification.com