Studio Pro

My DIY Marshall 4001 Studio 15

Specifications / Assembly / Samples / Tube Screamer / Contact




Vue de face
Done!



arrière
Done! Back side.



Pose du Tolex
Tolex job with contact liquid neoprene glue and protection corners



Arrière Tolexé
Backside tolex job and tube protection perforated plate



Défonce et Tolex
Beveled edge done with powered tool and start Tolex job



Grill-cloth monté
Grill-cloth attached. Easy removal with a small piece of Tolex attached in the bottom right corner



Fixation Grill-cloth
Grill-cloth mounting system on combo



Grill Cloth
Loudspeaker plate in 10 mm medium wood. Grill-cloth stappled, smart plate mounting system (velcro is used for removable, invisible and vibration-less system)



Monté
Voilà! (or "walla" like some people say). Chassis is installed in combo



isolation
Isolation: aluminum foil glued with neoprene to seal the chassis from electromagnetic perturbation



HPmonté
Cut in the top for an easy acces to controls. Assembly of the loadspeaker, leather handle and rubber feet



intérieur
Loudspeaker assembly using a safe system to prevent perforation (outside bold, allen type)



Assemblage
Combo assembly (L x H x P = 60 x 45.6 x 32 cm). A big fat 1 x 12" combo



tasseaux
Wood (pine, 28x28 mm) is glued and screwed. Cut for loudspeaker



Planches
I am now a carpenter. OK... my favorite store did for me the 18 mm medium wood cut



Presque teminé
Can't wait for the combo! Celestion G12H30 Rocks on the floor



Bias
Back side, bias setup with a custom cable (voltmeter -> RCA plug). Please download the speedsheet I created to trace loading curves and calculate Bias current (download)



Bias Zoom
Zoom on easy Bias setup (connect voltmeter to RCA plug, switch reading from one tube to the other with mini-switch, adjust Bias with potentiometers)



ensemble
Electronics assembly is completed



cablage
Wiring top-down view


Préampli
Preamp section on on side



Atténuateur
A simple power break with isolated switchcraft jack



plaque tube
Backside with cathode components section, connection for future reverb



StarGround
Star grounding, next to the main filter cap. Master volume efect loop isolation (cupper tape)



alimentation
Power supply on the opposite side of preamp (mains filter is integrated)



Chauffage
Tube heating, green wiring (DC for V1 on top, AC in the back corner)



Facade
Face plate completed



TurretBoard
  Old fashioned Turret board assembly: Power supply (left), Cathode components (right), preamp (front)



système de bias
Bias setup system, center-right (2 potentiometers, 1 switch, 1 RCA plug)


Chassis peint
Face plate design. Paint, stickers and gloss finish


Chassis fini
Chassis drill job completed


chassis trous
Chassis backside drilled


Chassis vierge
Chassis before drilling


pièces en vrac
Components ready for assembly (ugly green couch for sale)



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