Potentiometer - Alpha, Linear, 3/8" Bushing
Standard fit for most vintage American made tube amps.
For similar pots with tighter 10% tolerances, see R-V38-10TOL-XL.
RoHS Compliant
SKU:
R-V38-XL
Item ID:
003750
Application:
Brand:
Alpha
Shaft:
Taper:
Termination Style:
Type/Size:
Accessory Items:
| Resistance | Our Part Number | UPC/EAN |
|---|---|---|
| 1 kΩ | R-V38-1KL | 841358100505 |
| 5 kΩ | R-V38-5KL | 609722158718 |
| 10 kΩ | R-V38-10KL | 609722158626 |
| 25 kΩ | R-V38-25KL | 609722122689 |
| 50 kΩ | R-V38-50KL | 609722158701 |
| 100 kΩ | R-V38-100KL | 609722122627 |
| 250 kΩ | R-V38-250KL | 609722122665 |
| 500 kΩ | R-V38-500KL | 609722123280 |
| 1 MΩ | R-V38-1ML | 609722158633 |
| 2 MΩ | R-V38-2ML | 609722123266 |
| Body Depth | 11.5 mm | ||
| Body Width | 24 mm | ||
| Bushing Length | 6.5 mm | ||
| Bushing Thread | 1 MΩ version | R-V38-1ML | 3/8"-32NEF |
| 1 kΩ version | R-V38-1KL | 3/8"-32UNF | |
| 2 MΩ version | R-V38-2ML | 3/8"-32NEF | |
| 5 kΩ version | R-V38-5KL | 3/8"-32UNF | |
| 10 kΩ version | R-V38-10KL | 3/8"-32UNF | |
| 25 kΩ version | R-V38-25KL | 3/8"-32UNF | |
| 50 kΩ version | R-V38-50KL | 3/8"-32UNF | |
| 100 kΩ version | R-V38-100KL | 3/8"-32UNF | |
| 250 kΩ version | R-V38-250KL | 3/8"-32UNF | |
| 500 kΩ version | R-V38-500KL | 3/8"-32UNF | |
| Hex Nut Thickness | 2.2 mm | ||
| Hex Nut Width | 12.6 mm | ||
| Insulation Resistance | ＞100 MΩ at 500VDC | ||
| Life | 15,000 cycles | ||
| Manual Soldering Max Temp for 3 sec. | 350 °C | ||
| Max. Working Voltage | 500V | ||
| Max Rotational Stopper Strength | 6Kgf | ||
| Operating (Useable) Temperature | -10 °C to +70 °C | ||
| Rated Wattage (Power) | 0.5W | ||
| Rotational Torque | 20-200 gf-cm | ||
| Shaft Diameter | 6.35 mm | ||
| Sliding Noise | <47 mV | ||
| Tap Residual Resistance | ≤100 Ω | ||
| Taper | Linear | ||
| Tolerance | 1 MΩ version | R-V38-1ML | ±30% |
| 1 kΩ version | R-V38-1KL | ±20% | |
| 2 MΩ version | R-V38-2ML | ±30% | |
| 5 kΩ version | R-V38-5KL | ±20% | |
| 10 kΩ version | R-V38-10KL | ±20% | |
| 25 kΩ version | R-V38-25KL | ±20% | |
| 50 kΩ version | R-V38-50KL | ±20% | |
| 100 kΩ version | R-V38-100KL | ±20% | |
| 250 kΩ version | R-V38-250KL | ±20% | |
| 500 kΩ version | R-V38-500KL | ±20% | |
| Total Rotational Angle | 300° ±5° | ||
| Total Shaft Length | 15 mm | ||
| Washer I.D. | 9.7 mm | ||
| Washer O.D. | 16 mm | ||
| Washer Thickness | 0.4 mm | ||
| Withstand Voltage | 500 VAC for 1 min. |
| Packaging Dimensions | 1.3 in. × 1.1 in. × 1 in. | |
| Weight (Packaging) | 0.024 lbs. |
| R-V38-5KL - 5 kΩ version | Body Depth | 11.5 mm |
| Body Width | 24 mm | |
| Bushing Length | 6.5 mm | |
| Bushing Thread | 3/8"-32UNF | |
| Hex Nut Thickness | 2.2 mm | |
| Hex Nut Width | 12.6 mm | |
| Insulation Resistance | ＞100 MΩ at 500VDC | |
| Life | 15,000 cycles | |
| Manual Soldering Max Temp for 3 sec. | 350 °C | |
| Max. Working Voltage | 500V | |
| Max Rotational Stopper Strength | 6Kgf | |
| Operating (Useable) Temperature | -10 °C to +70 °C | |
| Rated Wattage (Power) | 0.5W | |
| Rotational Torque | 20-200 gf-cm | |
| Shaft Diameter | 6.35 mm | |
| Sliding Noise | <47 mV | |
| Tap Residual Resistance | ≤100 Ω | |
| Taper | Linear | |
| Tolerance | ±20% | |
| Total Rotational Angle | 300° ±5° | |
| Total Shaft Length | 15 mm | |
| Washer I.D. | 9.7 mm | |
| Washer O.D. | 16 mm | |
| Washer Thickness | 0.4 mm | |
| Withstand Voltage | 500 VAC for 1 min. | |
| R-V38-1KL - 1 kΩ version | Body Depth | 11.5 mm |
| Body Width | 24 mm | |
| Bushing Length | 6.5 mm | |
| Bushing Thread | 3/8"-32UNF | |
| Hex Nut Thickness | 2.2 mm | |
| Hex Nut Width | 12.6 mm | |
| Insulation Resistance | ＞100 MΩ at 500VDC | |
| Life | 15,000 cycles | |
| Manual Soldering Max Temp for 3 sec. | 350 °C | |
| Max. Working Voltage | 500V | |
| Max Rotational Stopper Strength | 6Kgf | |
| Operating (Useable) Temperature | -10 °C to +70 °C | |
| Rated Wattage (Power) | 0.5W | |
| Rotational Torque | 20-200 gf-cm | |
| Shaft Diameter | 6.35 mm | |
| Sliding Noise | <47 mV | |
| Tap Residual Resistance | ≤100 Ω | |
| Taper | Linear | |
| Tolerance | ±20% | |
| Total Rotational Angle | 300° ±5° | |
| Total Shaft Length | 15 mm | |
| Washer I.D. | 9.7 mm | |
| Washer O.D. | 16 mm | |
| Washer Thickness | 0.4 mm | |
| Withstand Voltage | 500 VAC for 1 min. | |
| R-V38-10KL - 10 kΩ version | Body Depth | 11.5 mm |
| Body Width | 24 mm | |
| Bushing Length | 6.5 mm | |
| Bushing Thread | 3/8"-32UNF | |
| Hex Nut Thickness | 2.2 mm | |
| Hex Nut Width | 12.6 mm | |
| Insulation Resistance | ＞100 MΩ at 500VDC | |
| Life | 15,000 cycles | |
| Manual Soldering Max Temp for 3 sec. | 350 °C | |
| Max. Working Voltage | 500V | |
| Max Rotational Stopper Strength | 6Kgf | |
| Operating (Useable) Temperature | -10 °C to +70 °C | |
| Rated Wattage (Power) | 0.5W | |
| Rotational Torque | 20-200 gf-cm | |
| Shaft Diameter | 6.35 mm | |
| Sliding Noise | <47 mV | |
| Tap Residual Resistance | ≤100 Ω | |
| Taper | Linear | |
| Tolerance | ±20% | |
| Total Rotational Angle | 300° ±5° | |
| Total Shaft Length | 15 mm | |
| Washer I.D. | 9.7 mm | |
| Washer O.D. | 16 mm | |
| Washer Thickness | 0.4 mm | |
| Withstand Voltage | 500 VAC for 1 min. | |
| R-V38-25KL - 25 kΩ version | Body Depth | 11.5 mm |
| Body Width | 24 mm | |
| Bushing Length | 6.5 mm | |
| Bushing Thread | 3/8"-32UNF | |
| Hex Nut Thickness | 2.2 mm | |
| Hex Nut Width | 12.6 mm | |
| Insulation Resistance | ＞100 MΩ at 500VDC | |
| Life | 15,000 cycles | |
| Manual Soldering Max Temp for 3 sec. | 350 °C | |
| Max. Working Voltage | 500V | |
| Max Rotational Stopper Strength | 6Kgf | |
| Operating (Useable) Temperature | -10 °C to +70 °C | |
| Rated Wattage (Power) | 0.5W | |
| Rotational Torque | 20-200 gf-cm | |
| Shaft Diameter | 6.35 mm | |
| Sliding Noise | <47 mV | |
| Tap Residual Resistance | ≤100 Ω | |
| Taper | Linear | |
| Tolerance | ±20% | |
| Total Rotational Angle | 300° ±5° | |
| Total Shaft Length | 15 mm | |
| Washer I.D. | 9.7 mm | |
| Washer O.D. | 16 mm | |
| Washer Thickness | 0.4 mm | |
| Withstand Voltage | 500 VAC for 1 min. | |
| R-V38-50KL - 50 kΩ version | Body Depth | 11.5 mm |
| Body Width | 24 mm | |
| Bushing Length | 6.5 mm | |
| Bushing Thread | 3/8"-32UNF | |
| Hex Nut Thickness | 2.2 mm | |
| Hex Nut Width | 12.6 mm | |
| Insulation Resistance | ＞100 MΩ at 500VDC | |
| Life | 15,000 cycles | |
| Manual Soldering Max Temp for 3 sec. | 350 °C | |
| Max. Working Voltage | 500V | |
| Max Rotational Stopper Strength | 6Kgf | |
| Operating (Useable) Temperature | -10 °C to +70 °C | |
| Rated Wattage (Power) | 0.5W | |
| Rotational Torque | 20-200 gf-cm | |
| Shaft Diameter | 6.35 mm | |
| Sliding Noise | <47 mV | |
| Tap Residual Resistance | ≤100 Ω | |
| Taper | Linear | |
| Tolerance | ±20% | |
| Total Rotational Angle | 300° ±5° | |
| Total Shaft Length | 15 mm | |
| Washer I.D. | 9.7 mm | |
| Washer O.D. | 16 mm | |
| Washer Thickness | 0.4 mm | |
| Withstand Voltage | 500 VAC for 1 min. | |
| R-V38-100KL - 100 kΩ version | Body Depth | 11.5 mm |
| Body Width | 24 mm | |
| Bushing Length | 6.5 mm | |
| Bushing Thread | 3/8"-32UNF | |
| Hex Nut Thickness | 2.2 mm | |
| Hex Nut Width | 12.6 mm | |
| Insulation Resistance | ＞100 MΩ at 500VDC | |
| Life | 15,000 cycles | |
| Manual Soldering Max Temp for 3 sec. | 350 °C | |
| Max. Working Voltage | 500V | |
| Max Rotational Stopper Strength | 6Kgf | |
| Operating (Useable) Temperature | -10 °C to +70 °C | |
| Rated Wattage (Power) | 0.5W | |
| Rotational Torque | 20-200 gf-cm | |
| Shaft Diameter | 6.35 mm | |
| Sliding Noise | <47 mV | |
| Tap Residual Resistance | ≤100 Ω | |
| Taper | Linear | |
| Tolerance | ±20% | |
| Total Rotational Angle | 300° ±5° | |
| Total Shaft Length | 15 mm | |
| Washer I.D. | 9.7 mm | |
| Washer O.D. | 16 mm | |
| Washer Thickness | 0.4 mm | |
| Withstand Voltage | 500 VAC for 1 min. | |
| R-V38-250KL - 250 kΩ version | Body Depth | 11.5 mm |
| Body Width | 24 mm | |
| Bushing Length | 6.5 mm | |
| Bushing Thread | 3/8"-32UNF | |
| Hex Nut Thickness | 2.2 mm | |
| Hex Nut Width | 12.6 mm | |
| Insulation Resistance | ＞100 MΩ at 500VDC | |
| Life | 15,000 cycles | |
| Manual Soldering Max Temp for 3 sec. | 350 °C | |
| Max. Working Voltage | 500V | |
| Max Rotational Stopper Strength | 6Kgf | |
| Operating (Useable) Temperature | -10 °C to +70 °C | |
| Rated Wattage (Power) | 0.5W | |
| Rotational Torque | 20-200 gf-cm | |
| Shaft Diameter | 6.35 mm | |
| Sliding Noise | <47 mV | |
| Tap Residual Resistance | ≤100 Ω | |
| Taper | Linear | |
| Tolerance | ±20% | |
| Total Rotational Angle | 300° ±5° | |
| Total Shaft Length | 15 mm | |
| Washer I.D. | 9.7 mm | |
| Washer O.D. | 16 mm | |
| Washer Thickness | 0.4 mm | |
| Withstand Voltage | 500 VAC for 1 min. | |
| R-V38-500KL - 500 kΩ version | Body Depth | 11.5 mm |
| Body Width | 24 mm | |
| Bushing Length | 6.5 mm | |
| Bushing Thread | 3/8"-32UNF | |
| Hex Nut Thickness | 2.2 mm | |
| Hex Nut Width | 12.6 mm | |
| Insulation Resistance | ＞100 MΩ at 500VDC | |
| Life | 15,000 cycles | |
| Manual Soldering Max Temp for 3 sec. | 350 °C | |
| Max. Working Voltage | 500V | |
| Max Rotational Stopper Strength | 6Kgf | |
| Operating (Useable) Temperature | -10 °C to +70 °C | |
| Rated Wattage (Power) | 0.5W | |
| Rotational Torque | 20-200 gf-cm | |
| Shaft Diameter | 6.35 mm | |
| Sliding Noise | <47 mV | |
| Tap Residual Resistance | ≤100 Ω | |
| Taper | Linear | |
| Tolerance | ±20% | |
| Total Rotational Angle | 300° ±5° | |
| Total Shaft Length | 15 mm | |
| Washer I.D. | 9.7 mm | |
| Washer O.D. | 16 mm | |
| Washer Thickness | 0.4 mm | |
| Withstand Voltage | 500 VAC for 1 min. | |
| R-V38-1ML - 1 MΩ version | Body Depth | 11.5 mm |
| Body Width | 24 mm | |
| Bushing Length | 6.5 mm | |
| Bushing Thread | 3/8"-32NEF | |
| Hex Nut Thickness | 2.2 mm | |
| Hex Nut Width | 12.6 mm | |
| Insulation Resistance | ＞100 MΩ at 500VDC | |
| Life | 15,000 cycles | |
| Manual Soldering Max Temp for 3 sec. | 350 °C | |
| Max. Working Voltage | 500V | |
| Max Rotational Stopper Strength | 6Kgf | |
| Operating (Useable) Temperature | -10 °C to +70 °C | |
| Rated Wattage (Power) | 0.5W | |
| Rotational Torque | 20-200 gf-cm | |
| Shaft Diameter | 6.35 mm | |
| Sliding Noise | <47 mV | |
| Tap Residual Resistance | ≤100 Ω | |
| Taper | Linear | |
| Tolerance | ±30% | |
| Total Rotational Angle | 300° ±5° | |
| Total Shaft Length | 15 mm | |
| Washer I.D. | 9.7 mm | |
| Washer O.D. | 16 mm | |
| Washer Thickness | 0.4 mm | |
| Withstand Voltage | 500 VAC for 1 min. | |
| R-V38-2ML - 2 MΩ version | Body Depth | 11.5 mm |
| Body Width | 24 mm | |
| Bushing Length | 6.5 mm | |
| Bushing Thread | 3/8"-32NEF | |
| Hex Nut Thickness | 2.2 mm | |
| Hex Nut Width | 12.6 mm | |
| Insulation Resistance | ＞100 MΩ at 500VDC | |
| Life | 15,000 cycles | |
| Manual Soldering Max Temp for 3 sec. | 350 °C | |
| Max. Working Voltage | 500V | |
| Max Rotational Stopper Strength | 6Kgf | |
| Operating (Useable) Temperature | -10 °C to +70 °C | |
| Rated Wattage (Power) | 0.5W | |
| Rotational Torque | 20-200 gf-cm | |
| Shaft Diameter | 6.35 mm | |
| Sliding Noise | <47 mV | |
| Tap Residual Resistance | ≤100 Ω | |
| Taper | Linear | |
| Tolerance | ±30% | |
| Total Rotational Angle | 300° ±5° | |
| Total Shaft Length | 15 mm | |
| Washer I.D. | 9.7 mm | |
| Washer O.D. | 16 mm | |
| Washer Thickness | 0.4 mm | |
| Withstand Voltage | 500 VAC for 1 min. |
 Specification Sheet for 1 MΩ | R-V38-1ML |
| Specification Sheet for 2 MΩ | R-V38-2ML |
| Specification Sheet for 1 kΩ | R-V38-1KL |
| Specification Sheet for 10 kΩ | R-V38-10KL |
| Specification Sheet for 100 kΩ | R-V38-100KL |
| Specification Sheet for 25 kΩ | R-V38-25KL |
| Specification Sheet for 250 kΩ | R-V38-250KL |
| Specification Sheet for 5 kΩ | R-V38-5KL |
| Specification Sheet for 50 kΩ | R-V38-50KL |
| Specification Sheet for 500 kΩ | R-V38-500KL |
My Project Lists
Specifications, Files, and Documents
Questions and Answers
Click each question to see its answers.
1 answers
Which potentiometer do replace in my cry baby model gcb95?
Asked by Anonymous on November 1st, 2015.
November 2nd, 2015
Staff MemberTop Contributor
An OEM replacement for the Crybaby Wah would be our SKU- P-ECB-24B
1 answers
I have a 1968 Fender Super Reverb (Silverface) Will these pots replace all the old pots in this amp?
Asked by Zulch on April 2nd, 2019.
April 2nd, 2019
Staff Member
We can not verify that all the values of the potentiometers in your amp will be covered by this listing, but as long as the hole size in your chassis is 3/8" these will physically fit.
Product Reviews
Perfect replacement, good quality and value. This saved a Heathkit oscilloscope from the trash heap! Great service. Thank you!!!
I always use the ALPHA pots !! Excellent !! Very precise values , and AES is the best supplier !!
These are my favorite pots for amp builds. They have a nicely damped, positive feel. Bourns pots have a very loose feeling to me and CTS pots are similar to Bourns. It's too bad you can't get these in all the flavors necessary for various builds or repairs.
Great pot. Smooth operation.
Excellent linear pot. Smooth operation.
Nice solid unit - smooth action
These seem to have tighter tolerances than CTS pots, and I like the firmer rotation feel.
I bought these for the Bass and Treble controls in the tube pre amp that I built.
They work fine.
The pot is decent quality. no problems
Nice inexpensive pot