In this video we go step by step through the Marshall Class 5 Fromel Modification as well as a new speaker and valves. Let me know your thoughts on the changes and if this video was helpful. Thanks!
Time Stamps
0:00 - Intro
0:52 - Un-modded Amp tones
4:10 - Mods and Tools
4:46 - Step 1- Mod Disclaimer
6:54 - Step 2 - Prepare the Amp
9:49 - Step 3 - Drain Filter Caps
11:43 - Step 4 - Tube PCB Prep
12:05 - Step 5 - Output Jacks PCP removal / Access Tube PCB
14:16 - Step 6 - Tube PCB Mods
18:11 - Step 7 - R25
19:28 - Step 8 - Removing main PCB
22:01 - Step 9 - Grid leak and V1 Cathode Mod
23:13 - Step 10 - Bright Cap
24:01 - Step 11 - Preamp Gain for tone stack
25:24 - Step 12 - Coupling Cap and tone stack mod
27:00 - Step 13 - Treble Peaker
27:44 - Step 14 - V2B Plate Load
28:15 - Step 15 - Cooling Bias
29:22 - Step 16 - Filter Caps
30:15 - Step 17 - Adding a Choke
32:20 - Step 18 - Putting it back together
34:45 - Step 19 - Checking you work...Sound test!
37:34 - Final Thoughts
