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Potentiometer - Alpha, Audio, 3/8" Bushing
Standard fit for most vintage American made tube amps.
For similar pots with tighter 10% tolerances, see R-V38-10TOL-XA.
RoHS Compliant
SKU:
R-V38-XA
Item ID:
039698
Application:
Brand:
Alpha
Shaft:
Taper:
Termination Style:
Type/Size:
Accessory Items:
| Resistance | Our Part Number | UPC/EAN |
|---|---|---|
| 1 kΩ | R-V38-1KA | 841358100512 |
| 10 kΩ | R-V38-10KA | 609722122634 |
| 25 kΩ | R-V38-25KA | 609722122672 |
| 100 kΩ | R-V38-100KA | 609722122610 |
| 250 kΩ | R-V38-250KA | 609722122658 |
| 500 kΩ | R-V38-500KA | 609722123273 |
| 1 MΩ | R-V38-1MA | 609722122641 |
| 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 | 1 MΩ version | R-V38-1MA | 15,000 cycles |
| 1 kΩ version | R-V38-1KA | 15,000 cycles | |
| 10 kΩ version | R-V38-10KA | 15,000 cycles | |
| 25 kΩ version | R-V38-25KA | 15,000 cycles | |
| 100 kΩ version | R-V38-100KA | 15,000 cycles | |
| 250 kΩ version | R-V38-250KA | 15,000 cycles | |
| 500 kΩ version | R-V38-500KA | 15,000 cycles | |
| Manual Soldering Max Temp for 3 sec. | 1 MΩ version | R-V38-1MA | 350 °C |
| 1 kΩ version | R-V38-1KA | 350 °C | |
| 10 kΩ version | R-V38-10KA | 350 °C | |
| 25 kΩ version | R-V38-25KA | 350 °C | |
| 100 kΩ version | R-V38-100KA | 300 °C | |
| 250 kΩ version | R-V38-250KA | 350 °C | |
| 500 kΩ version | R-V38-500KA | 350 °C | |
| Max. Working Voltage | 250V | ||
| Max Rotational Stopper Strength | 1 MΩ version | R-V38-1MA | 6Kgf |
| 1 kΩ version | R-V38-1KA | 6Kgf | |
| 10 kΩ version | R-V38-10KA | 6Kgf | |
| 25 kΩ version | R-V38-25KA | 6Kgf | |
| 100 kΩ version | R-V38-100KA | 6Kgf | |
| 250 kΩ version | R-V38-250KA | 6Kgf | |
| 500 kΩ version | R-V38-500KA | 6Kgf | |
| Operating (Useable) Temperature | -10 °C to +70 °C | ||
| Rated Wattage (Power) | 0.25W | ||
| Rotational Torque | 20-200 gf-cm | ||
| Shaft Diameter | 6.35 mm | ||
| Sliding Noise | <47 mV | ||
| Tap Residual Resistance | ≤100 Ω | ||
| Taper | Audio | ||
| Tolerance | 1 MΩ version | R-V38-1MA | ±30% |
| 1 kΩ version | R-V38-1KA | ±20% | |
| 10 kΩ version | R-V38-10KA | ±20% | |
| 25 kΩ version | R-V38-25KA | ±20% | |
| 100 kΩ version | R-V38-100KA | ±20% | |
| 250 kΩ version | R-V38-250KA | ±20% | |
| 500 kΩ version | R-V38-500KA | ±20% | |
| Total Rotational Angle | 300° ±5° | ||
| Total Shaft Length | 1 MΩ version | R-V38-1MA | 15 mm |
| 1 kΩ version | R-V38-1KA | 15 mm | |
| 10 kΩ version | R-V38-10KA | 15 mm | |
| 25 kΩ version | R-V38-25KA | 15 mm | |
| 100 kΩ version | R-V38-100KA | 15 mm | |
| 250 kΩ version | R-V38-250KA | 15 mm | |
| 500 kΩ version | R-V38-500KA | 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. × 0.973 in. × 1.048 in. | |
| Weight (Packaging) | 0.023 lbs. |
| R-V38-1KA - 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 | 250V | |
| Max Rotational Stopper Strength | 6Kgf | |
| Operating (Useable) Temperature | -10 °C to +70 °C | |
| Rated Wattage (Power) | 0.25W | |
| Rotational Torque | 20-200 gf-cm | |
| Shaft Diameter | 6.35 mm | |
| Sliding Noise | <47 mV | |
| Tap Residual Resistance | ≤100 Ω | |
| Taper | Audio | |
| 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-V38-10KA - 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 | 250V | |
| Max Rotational Stopper Strength | 6Kgf | |
| Operating (Useable) Temperature | -10 °C to +70 °C | |
| Rated Wattage (Power) | 0.25W | |
| Rotational Torque | 20-200 gf-cm | |
| Shaft Diameter | 6.35 mm | |
| Sliding Noise | <47 mV | |
| Tap Residual Resistance | ≤100 Ω | |
| Taper | Audio | |
| 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-V38-25KA - 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 | 250V | |
| Max Rotational Stopper Strength | 6Kgf | |
| Operating (Useable) Temperature | -10 °C to +70 °C | |
| Rated Wattage (Power) | 0.25W | |
| Rotational Torque | 20-200 gf-cm | |
| Shaft Diameter | 6.35 mm | |
| Sliding Noise | <47 mV | |
| Tap Residual Resistance | ≤100 Ω | |
| Taper | Audio | |
| 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-V38-100KA - 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. | 300 °C | |
| Max. Working Voltage | 250V | |
| Max Rotational Stopper Strength | 6Kgf | |
| Operating (Useable) Temperature | -10 °C to +70 °C | |
| Rated Wattage (Power) | 0.25W | |
| Rotational Torque | 20-200 gf-cm | |
| Shaft Diameter | 6.35 mm | |
| Sliding Noise | <47 mV | |
| Tap Residual Resistance | ≤100 Ω | |
| Taper | Audio | |
| 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-V38-250KA - 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 | 250V | |
| Max Rotational Stopper Strength | 6Kgf | |
| Operating (Useable) Temperature | -10 °C to +70 °C | |
| Rated Wattage (Power) | 0.25W | |
| Rotational Torque | 20-200 gf-cm | |
| Shaft Diameter | 6.35 mm | |
| Sliding Noise | <47 mV | |
| Tap Residual Resistance | ≤100 Ω | |
| Taper | Audio | |
| 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-V38-500KA - 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 | 250V | |
| Max Rotational Stopper Strength | 6Kgf | |
| Operating (Useable) Temperature | -10 °C to +70 °C | |
| Rated Wattage (Power) | 0.25W | |
| Rotational Torque | 20-200 gf-cm | |
| Shaft Diameter | 6.35 mm | |
| Sliding Noise | <47 mV | |
| Tap Residual Resistance | ≤100 Ω | |
| Taper | Audio | |
| 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-V38-1MA - 1 MΩ 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 | 250V | |
| Max Rotational Stopper Strength | 6Kgf | |
| Operating (Useable) Temperature | -10 °C to +70 °C | |
| Rated Wattage (Power) | 0.25W | |
| Rotational Torque | 20-200 gf-cm | |
| Shaft Diameter | 6.35 mm | |
| Sliding Noise | <47 mV | |
| Tap Residual Resistance | ≤100 Ω | |
| Taper | Audio | |
| 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-V38-1MA |
| Specification Sheet for 1 kΩ | R-V38-1KA |
| Specification Sheet for 10 kΩ | R-V38-10KA |
| Specification Sheet for 100 kΩ | R-V38-100KA |
| Specification Sheet for 25 kΩ | R-V38-25KA |
| Specification Sheet for 250 kΩ | R-V38-250KA |
| Specification Sheet for 500 kΩ | R-V38-500KA |
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Questions and Answers
Click each question to see its answers.
1 answers
Should these pots be used only for amp projects or could they be used for guitars as well?
Asked by kjt1776 on December 16th, 2018.
December 18th, 2018
Staff Member
They are perfectly acceptable replacements for guitar potentiometers.
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