Cloning the JCM900: 900 Special Ep.1
I decided to clone the Marshall JCM 900 Mark 3. I Analyze the Circuit & I discuss the plan. 0:00 - Who clones the 900 ? 1:45 - Schematic Analysis 2:28 - Clipping Stages Compared 4:25 - Input Protection Zeners 5:29 - Dual Gains 6:20 - Diode Clippers 7:59 - Voltage Divider & Master Volumes 10:25 - Presence Mention 10:51 - Negative Feedback 11:35 - Screen Grid & Grid Stoppers 12:08 - The Layout 14:26 - Complete Re Grounding 16:06 - PSU Capacitance 17:47 - PSU Voltage "Regulator" Dropper 19:33 - No Choke 21:00 - Isolated Jacks 21:20 - Speaker Output Impedance 25:55 - Tube Selection 26:32 - The Transformers 28:57 - Post Ramble
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900 Special Ep.2: The Bulk of the Wiring
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Grok AI Finally Reveals How Ancient Egyptians Cut Granite — The Proof Is Shocking!
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Restoring A Mid Century Classic: The Advent 5012
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900 Special Ep.3: Play Testing & Bug Fixes
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1966 Fender Super Reverb Overhaul - Part 2 | Everything Else
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My Thoughts On The Fender Controversy
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Traynor Custom Special YCS100H Circuit Analysis
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Fender 1966 Deluxe Reverb: Intermittent Hum
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Story time - and building one of my own PCBs (minor rant)
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Building a Subwoofer that KICKS HARD
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The 1.25V Trick That Gives You Any Voltage You Want
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Guitar Amps Are UGLY—So I Built a Better One
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Anika Nilles: Getting To Know Rush's New Drummer
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What AI Found in the Dead Sea Scrolls Is Raising Serious Biblical Questions
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Ground Schemes | Part 1 : The Ideal vs Good Enough vs Vintage Marshalls
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New D-lab series Basic Training Tube amp repair How to really fix a dirty pot Not what you think
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9 Vintage Turntable Brands Ranked From WORST to BEST
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NEW JBL Summit Everest & K2 Revealed at HIGH END Vienna 2026
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The Best Cable - Wire For Audio? Let's Look Closer!
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