Fender 1969 Twin Reverb AC568 - AB763 Repair, Conversion, and Studio Comparison
Автор: Pro Amp Solutions
Загружено: 2023-12-28
Просмотров: 1495
Описание:
Join me in the repair and conversion of this Fender 1969 Twin Reverb. This is a vintage amp in excellent original condition. It is a beautiful example of a window sill Silver Face Twin Reverb that is transitional. This has the AC568 circuit which was only manufactured for a few months. The tube chart indicates it is an AB763 circuit, but it is actually an AC568. This amp came in for service with no reverb and scratchy pots. I step through the repair and then I bring something new for this channel. I take it on the road as an AC568 for a studio test with a gifted musician, and then I convert it to an AB763 circuit for a comparative studio test! Join me for my first experience recording an amp wide open with my camera setup. I learned a lot from the session and will improve the audio at the next opportunity. While the camera audio distorts some as it is overdriven by how loud the amp projected, I believe this video still does a good job conveying the difference in the circuit from the player's perspective. I wish you could have heard it the way we did. I had a blast and expect to do more interactive videos like this. I would enjoy hearing your thoughts and feedback. Love Your Tone!
0:00 What? It's an AC568!
9:36 Power Cord Safety Prep Work
10:16 BK 747B RCA 12AT7 Reverb Driver Tube Test
11:05 Cabinet with Utah Speakers and AB763 Tube Chart
12:13 AC568 Circuit Amp Studio Review
47:37 AC568 Schematic Overview Discussing AB763 Differences
53:53 Component Removals Begin
55:51 AB763 Conversion Bias Test
57:16 AB763 Component Changes Walk Through
1:01:32 AB763 Circuit Amp Studio Review
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