12xxx Series Build Checklist
A check list for the parts you need for your 12xxx series build.
The list is roughly in the order you will need the parts.
The required quantities are shown next to the default items.
Items marked with a yellow V are the parts we would recommend.
There are options available for some parts. Read each section carefully, adjust the quantities if needed; and add the items to your cart.
The list is roughly in the order you will need the parts.
The required quantities are shown next to the default items.
Items marked with a yellow V are the parts we would recommend.
There are options available for some parts. Read each section carefully, adjust the quantities if needed; and add the items to your cart.
Prerequisites | NOTE: PAYPAL HAS SLOWED DOWN THE RESPONSIVENESS OF THE "ADD TO CART" BUTTONS. WHEN YOU ADD ITEMS TO THE CART, THE PAYPAL CART WILL APPEAR IN A NEW BROWSER TAB OR WINDOW. MAKE SURE THAT THE ITEM YOU ARE ADDING APPEARS IN THE CART BEFORE YOU HIT THE NEXT "ADD TO CART" BUTTON OR ITEMS MAY NOT BE ADDED TO THE CART. | ||
| These are the things you need to acquire ahead of time: Transformers, Choke - Click here for more info | |||
Chassis | |||
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MetroAmp 12 Series Chassis - Updated version .060" steel chassis. Updated to accept the new production Belton sockets. Features spot-welded corners. Treated with gold color, zinc chromate finish. | $125.00 V | |
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MetroAmp socket hole cover for 12 Series Chassis | $6.00 V | |
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MetroAmp Power Transformer Mounting Plate for 12 Series and JTM45 Chassis | $16.00 V | |
Panels | |||
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MetroAmp 100 watt Panel Set Fits 12 Series and 1969 chassis | $60.00 V | |
| MetroAmp JMP style front panel only | $30.00 | ||
| MetroAmp 100 watt back panel only | $30.00 | ||
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MetroAmp JMP style face plate with JMP marking added |
$40.00 | |
| Custom 100 watt Style back plate Contact Us to discuss your chassis type. |
$55.00+ | Contact us | |
Boards | |||
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MetroAmp 12 Series Board Set | $40.00 V | |
| MetroAmp 12 Series Board Set Fully perfed. | $45.00 | ||
| Double Turret 12 Series Board Set | $45.00 | ||
| Double Turret 12 Series Board Set Fully perfed. | $50.00 | ||
MechanicalsThe things you need to bolt down to get started! | |||
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3/8" Rubber Grommet for 3/8" chassis opening, 9/32" inside diameter |
$0.25 V |
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| 1/2" Rubber Grommet for 1/2" chassis opening, 3/8" inside diameter | $0.35 V | ||
 | 2 Hole Solder lug #6 internal tooth | $1.70 pkg of 10 V | |
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New Plexi Amp Hardware Kit More Hardware for amp with laydown power transformers All bolts have round heads Large bolts:(6) 1/2" #10,(4) #8 Nuts/washers for PT Small bolts:(6) 1/2",(6) 3/8" - #4 size | $18.95 V | |
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8 Pin Micalex Socket For newer Metro 12 series chassis 1 1/2" mounting centers, fits 1 3/16" to 1 1/4" chassis hole, top or bottom mount. | $3.50 V | |
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Tube Retainer For EL34, 5881 or 6L6 | $2.00 V | |
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9 Pin Micalex Socket with shield base Fits 3/4" chassis hole. 1 1/8" mounting centers. | $2.95 V | |
| Shield for 9 pin socket | $1.95 V | ||
PI Capacitor - pick one setupThis option use a standard 1 3/8" mounting ringPick one capacitor value | |||
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F&T Dual 16uf 450v | $9.95 | |
| F&T Dual 32uf 500v | $9.95 | ||
| F&T Dual 50uf 500v | $9.95 V | ||
 | Medium Can Clamp 1 3/8" clear anodized | $2.00 V | |
This option uses a 32uf TAD cap with a 1" mounting ring | |||
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TAD 32uf Can 500v Used with Metro 12 series chassis | $6.95 | |
 | Small Can Clamp 1" - Used with TAD 32uf can cap | $2.50 | |
Wire and Wiring AccessoriesYour going to need these things... make sure you have them now! | |||
 | Plexi Amp Wiring Kit
12 feet of Red and Black. 7 feet each of Brown, Orange, Yellow, Green, Blue, Purple and White. | $14.55 V | |
 | 22awg Tinned Buss wire | $0.10 per foot V | |
| 18awg Tinned Buss wire | $0.20 per foot V | ||
 | 18awg Sleeving PVC Coated Fiberglass | $0.50 per foot V | |
 | 1/8" Heat Shrink | $0.20 per 4" V | |
| 1/4" Heat Shrink | $0.25 per 4" V | ||
 | 4" Cable Tie Black | $0.50 pkg of 10 V | |
Screen Socket ResistorsYou need to pick a style and get four of these! | |||
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1K 7watt Welwyn W22 Wirewound Resistor For that cool classic look! | $2.95 V | |
 | 1K 5watt Ohmite | $2.50 | |
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1K 5watt Xicon Wirewound Resistor Lower cost alternative! | $0.75 | |
Marshall Components KitThe small components needed to complete the kit! | |||
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Resistors: All 1 watt and 2 watt resistors included (5 watt screen socket resistors not included)
Silver Mica Caps: (3) 500pf, (1) 250pf, (1) 100pf, (1) 47pf Small Electrolytic Caps: (2)10uf bias and (2)cathode bypass ((1)330uf and (1)220-250uf) Diodes: (5) 1N4007 25k trimmers: (1) Vertical, (1) Horizontal The ValveStorm version of the kit(s) substitute 1 watt Carbon Film resistors with longer leads for some of the 2 watt Metal Oxides. Provided resistors list: Kit resistor Comparison Brands and types provided may vary depending upon availability | ||
Alternate Electrolytics - Select "No Aluminum Caps" from the kit above | |||
Cathode Bypass Capacitors - Pick one for the Normal channel | |||
 | BC Components 220uf axial 25v | $1.50 | |
| BC Components 330uf axial 25v | $2.00 | ||
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BC Components 330uf axial 25v - Light Blue Higher temp version | $3.95 | |
 | Sprague Atom 250uf axial 25v | $4.25 | |
| Sprague 330uf axial 25v | $1.95 | ||
Bias Capacitors - Pick two of the same type | |||
 | BC 10uf Axial 160v | $2.50 V | |
Wiring Tube Sockets and Transformers | |||
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6v Marshall Indicator Includes star retaining ring. Let us know if you want the e-clips instead. Installing 6v Indicators | $6.95 V | |
 | Marshall New Style Impedance Selector | $32.95 V | |
Power & Standby SwitchesYou need to get two switches. If you are going to use a Metro Dual Voltage Power Transformer, get one of the red ones. | |||
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DPST Switch 20A @125v,10A @250v | $7.95 V | |
 | Dual-Voltage Switch Newer version 3PDT Switch for use with dual voltage power transformers. | $17.95 | |
 | Marshall Chrome Toggle Ring The more modern style with the beveled edges See vintage style here: More info | $3.95 V | |
FuseHoldersPick two of one type... | |||
For 5/8" holes with Double-D shape. Use with latest Metro 12series and Ceriatone chassis | |||
 | Panel Mount Fuseholder for 1.25" x 0.25" fuses Fits 5/8" mounting hole with Double-D shape | $2.50 V | |
For 5/8" holes with round shape. | |||
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Panel Mount Fuseholder for 1.25" x 0.25" fuses 5/8" mounting hole | $3.00 | |
| Panel Mount Fuseholder for 1.25" x 0.25" fuses 5/8" mounting hole | $7.00 | ||
Power Cords | |||
Modern IEC type connector and cords | |||
 | IEC Receptacle | $1.75 V | |
| New! IEC punch service for steel chassis 28mm x 21mm rectangular cutout | $7.50 V | ||
 | 8 foot Power Cord with IEC female end SVT (Marshall type) 18 awg. | $4.95 | |
| 12 foot Power Cord with IEC female end SVT (Marshall type) 18 awg. | $6.95 V | ||
Bare End cords and strain relief | |||
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Strain relief for SVT cord 1/2" opening | $0.50 M | |
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New! Locking strain relief for SVT cord fits 1/2" opening | $1.50 | |
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8 foot Power Cord, 18 AWG, 3 Conductor, Black Bare end SVT type | $4.95 M | |
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12 foot Power Cord, 18 AWG, 3 Conductor, Black Bare end SVT type | $6.95 | ||
Jacks | |||
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Old Style Cliff Jack with metal ring Made in the UK. Additional jacks | $2.25 V | |
Potentiometers - pick one | |||
CTS Pot Amp Set | |||
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5/16" bushing lengths, 3/8" brass shafts Volume: (2) 1m audio Additional pot sets Treble: (1) 250k linear Mid: (1) 25k linear Bass: (1) 1m audio Presence: (1) 5k linear | $28.95 V | |
Alpha Pot Amp Set | |||
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Volume: (2) 1m audio Additional pot sets Treble: (1) 250k linear Mid: (1) 25k linear Bass: (1) 1m audio Presence: (1) 5k linear | $8.95 | |
Filter Capacitors | |||
Power Board Capacitors | |||
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F&T Axial 100uf 450v .99" diameter x 1.96" long | $9.50 V | |
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F&T Axial 30uf 500v .99" diameter x 1.48" length | $7.50 V | ||
Preamp Board Capacitors - Pick one style | |||
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F&T Dual Axial 33uf/33uf 450v | $9.95 V | |
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F&T Axial 16uf 475v Allows for separate grounding points on the preamp stages. Buy two. .64" diameter x 1.55" length | $5.95 | |
Coupling CapacitorsAdditional choices - click here: More Coupling Caps | |||
Synergy Royal Mustards Capacitors | |||
 | Synergy Royal Mustards .0022uf 500v | $4.00 V | |
| Synergy Royal Mustards .022uf 500v | $4.00 V | ||
| Synergy Royal Mustards .1uf 500v | $5.70 V | ||
| Synergy Royal Mustards .68uf 200v | $6.00 V | ||
Mallory 150 Capacitors | |||
| Note: Picture does not indicate actual capacitor. Capacitors are yellow unless otherwise idicated. | |||
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Mallory .0022uf 630v (yellow case) | $0.80 | |
| Mallory .022uf 630v (yellow case) | $1.00 | ||
| Mallory .1uf 630v (yellow case) | $1.25 | ||
| Mallory .68uf 100v (yellow case) | $2.75 | ||
Alternate .68uf Capacitors | |||
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Panasonic Polypropylene .68uf 500v | $1.50 | |
1/2 watt NOS AB Resistors - Optional | |||
Additional resistor choices - click here: More Carbon Comps | |||
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| 820 ohm 5% - Long leads | $2.00 | ||
| 33K ohm 5% - Long leads | $1.00 | ||
| 47K ohm 5% - Long leads | $1.25 | ||
| 68K ohm 5% - Long leads | $2.75 | ||
| 100K ohm 5% - long leads | $3.00 | ||
| 470K ohm 5% - Long leads | $4.00 | ||
| 1meg ohm 5% - Long leads | $1.75 | ||
Knobs | |||
Additional knob choices - click here: More Knobs | |||
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Set-screw knob pkg of 8 Low profile knobs(0.6") with light gold colored caps. | $11.95 V | |
Fuses | |||
Fast Blow | |||
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1 amp AGC - Fast Blo .25" x 1.25" | $0.65 V | |
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2 amp AGC - Fast Blo, Mains Fuse (240v) .25" x 1.25" | $0.65 | ||
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4 amp AGC - Fast Blo, Mains Fuse (120v) .25" x 1.25" | $0.65 V | ||
Slow Blow | |||
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1 amp AGC - Slo Blo .25" x 1.25" | $0.70 | |
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2 amp AGC - Slo Blo, Mains Fuse (240v) .25" x 1.25" | $0.70 | ||
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4 amp AGC - Slo Blo, Mains Fuse (120v) .25" x 1.25" | $0.70 | ||
Tubes | |||
Additional tube choices - click here: More Tubes | |||
 | JJ 12ax7 - spiral filament | $12.95 V | |
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JJ EL34 - Matched Quad | $68.00 V | |
| JJ EL34 - Matched Quad Burned in for stability | $68.00 | ||
Chassis Mounting Bolts | |||
 | Chassis Mounting Bolts. Qty.4 | $3.95 V | |
