Click to zoom in
Customer Images:
No Images yet! Submit a product image below!
Potentiometer - Alpha, Reverse Audio, 3/8" Bushing
Standard fit for most vintage American made tube amps.
RoHS Compliant
SKU:
R-V38-X-RA
Item ID:
003749
Application:
Brand:
Alpha
Electronics:
Shaft:
Taper:
Termination Style:
Type/Size:
Accessory Items:
| Resistance | Our Part Number | UPC/EAN |
|---|---|---|
| 50 kΩ | R-V38-50K-RA | 609722123297 |
| 250 kΩ | R-V38-250K-RA | 609722158640 |
| 500 kΩ | R-V38-500K-RA | 609722158695 |
| 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 | 250V | ||
| Max Rotational Stopper Strength | 6Kgf | ||
| Operating (Useable) Temperature | -10 °C to +70 °C | ||
| Rated Wattage (Power) | 50 kΩ version | R-V38-50K-RA | 0.25W |
| 250 kΩ version | R-V38-250K-RA | 0.5W | |
| 500 kΩ version | R-V38-500K-RA | 0.25W | |
| Rotational Torque | 20-200 gf-cm | ||
| Shaft Diameter | 6.35 mm | ||
| Sliding Noise | <47 mV | ||
| Tap Residual Resistance | ≤100 Ω | ||
| Taper | Reverse 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. |
| Packaging Dimensions | 1.3 in. × 1.1 in. × 1 in. | |
| Weight (Packaging) | 0.024 lbs. |
| R-V38-50K-RA - 50 kΩ 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 | 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 | Reverse 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-V38-250K-RA - 250 kΩ 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 | 250V | |
| 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 | Reverse 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-V38-500K-RA - 500 kΩ 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 | 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 | Reverse 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. |
 Specification Sheet | All Models |
My Project Lists
Specifications, Files, and Documents
Questions and Answers
Click each question to see its answers.
1 answers
Any 3 meg RA available ?
Asked by Anonymous on September 30th, 2016.
The only 3 meg reverse audio pot we have with solder lugs is a CTS pot found here: R-VC3M-RA. This pot has a nylon shaft.
1 answers
Will there be any 100k in Alpha or CTS in Reverse Taper and with solid shaft?
Asked by Froseph2012 on March 31st, 2018.
Unfortunately we do not have this style of pot in a 100k reverse audio. Please send us your product suggestion to see if we can source this for you: https://www.amplifiedparts.com/new-product-suggestions.
1 answers
Do you have any 100k and 10k reverse audio pots? I've found the Alpha 50,250, and 500k, but none in the other resistances.
Asked by Anonymous on December 27th, 2020.
December 30th, 2020
Staff Member
Not at this time, but you can make a suggestion to management for any products you would like to see us carry by submitting a new product suggestion: https://www.amplifiedparts.com/new-product-suggestions
Product Reviews