Late-50's Gibson GA-6 Amplifier ....with some Very Unusual Problems
53:09
1965 Gibson GA-5T Skylark in Superb Original Condition
9:47
A Very Unusual Tube Amp Problem......and Repair
10:45
Construction methods in tube instrument amps
17:54
What Amateurs Don't Understand About Guitar Tone
22:01
The Doug and Pat Show on vintage Gibson amps Part I
6:25
Vintage Gibson GA-8 Gibsonette 6V6 Class A tube guitar amp inspection & repair
52:11
1954 Gibson GA-77 Amp: Some Challenges and Some Great Tone
22:39