Marshall™ Potentiometers
("Pots")

We carry a complete selection of Marshall™ Amplifier parts for both vintage and modern amps.

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Click on Type of Marshall™ Pot:

Marshall™ bias pots

Marshall™ JCM800 pots for PC board mounting

Marshall™ amps up until 1979 with solder lugs and set-screw knobs (also a few early JCM800)

Marshall™ JCM900
and the early Valvestate Series 1 amps

Marshall™ JCM2000 (DSL/TSL) and the later Valvestate Series 2 amps

Marshall™ "G" series MG amps and the early 2000's MGxxDFX series (such as the G50RCD, and the MG100DFX)

The 2010 and later MG series amps (such as the MG100FX) with the large "MG" on the front faceplate





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POT, 22K-25K VERTICAL LINEAR BIAS ADJUST POT FOR Marshall™
Used in many previous Marshall™ models with PC board circuitry.  Mounted on the main PC board - used to set the bias on the output tubes.   Common failure item.  This is the original Marshall™ part.   Body of pot is 15mm (about 5/8") in diameter.
Part #P-BPM-22KL-V
$2.95  


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POT, 22K-25K HORIZONTAL LINEAR BIAS ADJUST POT FOR Marshall™
Mounted on the main PC board or turret boards - used to set the bias on the output tubes.  This style has 3 pins for mounting - see photo.  Common failure item.   This is an alternate horizontal style - particularly useful in modifications, kit builds, etc.   Body of pot is 15mm (about 5/8") in diameter.
Part #P-BPM-22KL-H
$2.95  


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POT, JCM2000 SERIES 22K LINEAR BIAS ADJUST POT FOR Marshall™
Marshall part number POTTR22K, used as bias adjust pots.   Found in the DSL-50, DSL-100, TSL-100, TSL-122 models in the JCM2000.    Each amplifier uses two bias pots.
Part #POT-TR22K
$3.50  


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POT, ORIGINAL Marshall™ , PC MOUNT, 24mm DIAMETER BODY, 9.5mm DIAMETER THREADED BUSHING. 
Used in many previous Marshall™ models with PC board circuitry (such as the later JCM800 series).   Original Marshall replacement with 8.8mm (nominal 9mm) diameter threaded bushing.  Bushing length is 9.5mm.   Diameter of the body of the pot is the size of a quarter (about 1 inch or 24mm).   Includes washer and two nuts.  Replacement nut is the JN-975.  Pots are manufactured by Alpha, Song Huei, or Di Ya for Marshall. Select Pot Value in Options
Part #P-VM24-XX
$6.95
Note - the B4.7K, the B22K, and the B220K sizes are currently unavailable from Marshall.   Use the B4.7K, B22K and/or the B220K in the P-VM24AP style pot below as alternatives.  

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POT, AFTERMARKET Marshall™ TYPE, PC MOUNT, 24mm DIAMETER BODY, 8mm DIAMETER THREADED BUSHING.
This is an alternative pot for 24mm Marshall pots - made by Alpha.  7.8mm (nominal 8mm) diameter threaded bushing.  Bushing length is 10.5mm.    Diameter of the body of the pot is the size of a quarter.   This pot has a smaller diameter bushing than the original - however, unlike many other suppliers, we include all necessary washers (2) and nuts (3) to be a drop-in replacement for the original Marshall™ pot.  Replacement nut is the JN-1016.  Select Pot Value in Options
Part #P-VM24AP
$6.95

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POT - CTS,  3/8" BUSHING
Top quality 24 mm carbon composition. 300° rotation. 1/2 watt, 500VDC rating. 1/4" diameter solid metal shaft, 3/8" bushing, solder lugs. Fits perfectly in vintage amps like Fender™ (Tweed, Brownface, Blonde, original Blackface and original Silverface Models), all Marshalls up to 1979 and some of the JCM800 versions, vintage Vox, vintage Orange, vintage Hiwatt, vintage Boogie, Sound City, Music Man and many more. With correct 1/4" shaft and 3/8" bushing. Superior quality, solderable back!    CTS was the original OEM supplier for vintage Fender™ pots.  Note:  250K J-Taper, 1 Meg J-Taper, and 3 Meg Reverse Audio (C3M) pots have brass colored shafts.
Select Pot Value in Options
INCLUDES NUT & WASHER  (For spare or replacement nut, order the JNUT-38 nut found in this section)
Part #P-VC-XX
 

Starting at
$5.95

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BRASS POT ADAPTER SLEEVE
Do you want to put a 1/4" set-screw knob on your 1/4" knurled shaft potentiometer?  Do you need to eliminate the off-center problem when using a 1/4" set screw knob on a 6mm shaft pot?

Just slip one of our solid brass pot adapter sleeves onto any 1/4" knurled pot shaft or 6mm pot shaft to ensure a snug and secure fit for a 1/4" (6.35mm) smooth shaft knob. We have tested this adapter extensively, and it really does work great!

Note:  Will NOT work with 3/16" knurled shaft pots.  Those smaller knurled shafts are typically found in Crate and Peavey amps.  Not recommended for D-shaft type shafts.

Part #PAS-635

$0.95  


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POT NUT, METAL
Replacement metric nut for the Marshall™ 24mm pots (P-Vxxxx-M24) which have brass colored threaded bushings.     Metric threads M9x.075 zinc plated.
These nuts typically fit the original pots used in vintage Marshalls.  They do not fit the newer Alpha replacement 24mm pots which have silver colored threaded bushings - for those pots, see the JN-1016 nut.
Part #JN-975
$0.49


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POT WASHER, METAL
Replacement metric washer for the Marshall™ 24mm pots (P-Vxxxx-M24) which have brass colored threaded bushings.  9mm ID, 15mm OD.   
These washers typically fit the original pots used in vintage Marshalls, and the original Marshall™ replacement pots that we sell.  They do not fit 3/8" diameter pot bushings (such as pots in vintage Fender amps), or Switchcraft jacks.
Part #JW-9
$0.19


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POT NUT, METAL, 8MM
Replacement nut for the Fender™ bracket mount pots with smooth 1/4" shafts (FPHD-xxxx), such as used on the Hot Rod Deluxe/Deville, Blues Deluxe/Deville.    Also fits the substitute replacement pots for Marshall™ 24mm with silver-colored threaded bushings, and our P-VA-XX pots.  Metric threads M8x.075 zinc plated.
Part #JN-1016
$0.39  


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POT NUT, METAL
Replacement metric nut for the Marshall™ 11mm (P-VKG type)   Metric threads M9x.075 zinc plated. 

Part #JN-VKG11
$0.49


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POTENTIOMETER NUT AND WASHER, METAL
Replacement nut for the Marshall™ style 16mm pots (P-Vxxxx-M16, P-MGP-XXX and P-Vxxxx-M16S).   Metric threads M7x.075 zinc plated.
Part #PNW-16
$0.45  


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POT, PC MOUNT, 16mm DIAMETER BODY, 7mm DIAMETER THREADED BUSHING.  ORIGINAL Marshall™ REPLACEMENT PART.
Used in Marshall™ Valvestate I, JCM900, JCM600, JTM30, JTM60, and 6100 Series. Used in Marshall™ models: AS80R, 8040, 8080, 8100, 8200, 8240, 8280, JCM900 Models: 2100, 2101, 2500, 2501, 4100, 4500, 4101, 4102, 4501, 4502, SL-X 2100, SL-X 2500, 6100, 6101, JTM60 and JTM30 Series.  Also used in other amps besides Marshall™.   Available values:  B4.7K, B10K, B22K, B50K, A100K, B100K, B220K, and A1M.   Select Pot Value in Options
INCLUDES NUT & WASHER  (For spare or replacement nut, order the PNW-16 nut and washer set found here).
Part #P-VM16-XX
$2.95

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POTENTIOMETER DUST CAP, for all 16mm (5/8") pots.   Slips over the case of the pot and helps keep out dust and contamination.  Made by Alpha.  Fits all 16mm potentiometers.   Sold individually.  Note:   For single-gang pots only - will not fit dual 16mm pots.
Part #PDC-16
$0.20 each

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POT, 10K OHM X2 LINEAR DUAL, (B10K), PC MOUNT, 6 MOUNTING PINS, 16mm DIAMETER BODY, 7mm DIAMETER THREADED BUSHING.  ORIGINAL Marshall™ REPLACEMENT PART.
Used in Marshall™ Valvestate I, JCM900 and JCM600 Series. Also used in the JMP1 Preamp as Output Level Control.  Used in Marshall™ models:   AS80R, 8200, 8240, 8280, JCM900 Models: 2100, 2101, 2500, 2501, 4100, 4500, 4101, 4102, 4501, 4502, SL-X 2100, SL-X 2500, JTM60 and JTM30 Series.  Diameter of the body of the pot is slightly smaller than a dime. 
Shaft length is 11.5mm.  Fits many other amps besides Marshall™.
INCLUDES NUT & WASHER  (For spare or replacement nut, order the PNW-16 nut and washer set found here).
Part #P-V10KLX2-M16
$6.95  


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Complete Marshall™ Potentiometer Kit, 11 POTS TOTAL.  ORIGINAL Marshall™ REPLACEMENT PARTS.  MARSHALL VS65R.
Complete replacement Potentiometer Kit for the Marshall™ ValveState Model VS65R.  11 pots on the front panel.
Part #MPK-15
$62.95  


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Complete Marshall™ Potentiometer Kit, 15 POTS TOTAL.  ORIGINAL Marshall™ REPLACEMENT PARTS.  MARSHALL VS100 AND VS100R MODELS.
Complete replacement Potentiometer Kit for the Marshall™ ValveState Models VS100, VS100R, VS102R, VS100H or VS100RH.  15 pots on the front panel.
Part #MPK-16
$81.95  


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POT, 11mm, Marshall™ TYPE, PC MOUNT.
Used in many later Marshall™ models with PC board circuitry, including the JCM2000 series TSL100, TSL122, DSL100, DSL50 as well as some of the late 90's ValveState models and the MA50/MA100 amps.   This pot has 4 pins.  Includes mounting nut.  Available values:  B5K, B10K, A10K, B20K, B50K, A100K, B100K, A200K, B200K, A500K, and A1M.   Select Pot Value in Options
Part #P-VKG-XX
$6.95

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POT, DUAL TANDEM, 7 pins, 14mm, A200K, Marshall™ TYPE, PC MOUNT.
Used in the Marshall™ DSL401 as the master volume control.   This pot has 7 pins.  Marshall™ part number POTP00076.  Includes mounting nut. 
Part #P-VKG-A200KX2
$15.95

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POT, 10K LINEAR, 9mm, Marshall™, PC MOUNT.  LABELED "B10K", D-Shaft.
Used in the fourth series of MG amplifiers -  such as the MG15FX, MG30FX, MG50FX, MG100FX, etc.    Includes nut and washer.  This pot is used in all control locations, all functions.   Replaces original Marshall™ part number M-POTP-91001.

Part #P-VMG-10KL
$9.95

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POT, PC MOUNT, MG SERIES, 16mm DIAMETER BODY, 7mm DIAMETER THREADED BUSHING, MEDIUM SHAFT.
Used in the Marshall™ G10MKII, G10CD, G15RCD, G30RCD, G215RCD, G50RCD, G80RCD, G100RCD, B25, MG10CD, MG15CD, MG15CDR, MG15DFX, MG30DFX, MG50DFX, MG100DFX, MG250DFX, MG100HDFX.  Diameter of the body of the pot is slightly smaller than a dime.  Shaft length is 10mm.  Click on photo for more detail.    


INCLUDES NUT & WASHER  (For spare or replacement nut, order the PNW-16 nut and washer set found here).
Part #P-MGP-XX

$3.95

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POT, DUAL 10K OHM LINEAR, (B10KX2), PC MOUNT, 16mm DIAMETER BODY, 7mm DIAMETER THREADED BUSHING, MEDIUM SHAFT.
Used in the Marshall™ MG100HDFX (Loop Level), MG100DFX (Loop Level), MG250DFX (Master Volume).  Diameter of the body of the pot is slightly smaller than a dime.  Shaft length is 10mm.  Click on photo for more detail.  Replaces Marshall™ part number POTP-90036.  Download cross-reference guide for these pots.
INCLUDES NUT & WASHER  (For spare or replacement nut, order the PNW-16 nut and washer set found here).
Part #P-MGP-10KBX2
$6.95  


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