0:37
Faulty preamplifier fed signal from audio line tester at medium gain with medium test tone toggling on ...
0:39
Faulty preamplifier fed signal from audio line tester at medium gain with loud test tone toggling on and off.
0:34
Faulty preamplifier fed signal from audio line tester at low gain with quiet test tone toggling on and off.
0:12
Faulty preamplifier fed signal from audio line tester at low gain with medium test tone toggling on and off.
0:27
Faulty preamplifier fed signal from audio line tester at low gain with loud test tone toggling on and off.