1. Home
  2. Products
  3. Potentiometers

Potentiometer - Alpha, Linear, 3/8" Bushing

Potentiometer - Alpha, Linear, 3/8" Bushing

Alpha
Potentiometer - Alpha, Linear, 3/8" Bushing image 1
Customer image:<br/>"Vogel Instrument Company Evolution 30"
Customer image:<br/>"Ham Radio Transceiver for 40 meters"
Customer image:<br/>"Repaired a Heathkit oscilloscope. "
Click to zoom in
Potentiometer - Alpha, Linear, 3/8" Bushing image 1
Customer Images:
Customer image: "Vogel Instrument Company Evolution 30"Customer image: "Ham Radio Transceiver for 40 meters"Customer image: "Repaired a Heathkit oscilloscope. "
$1.85
In Stock

Standard fit for most vintage American made tube amps.

For similar pots with tighter 10% tolerances, see R-V38-10TOL-XL.

SKU:
R-V38-XL
Item ID:
003750
Application:
Amp
Brand:
Alpha
Resistance:
100k, 10k, 1M, 250k, 25k, 2M, 500k, 50k, 5k
Shaft:
Solid
Taper:
Linear
Termination Style:
Solder Lugs/Tabs
Type/Size:
24mm Single
RoHS Compliant
Part Numbers
ResistanceOur Part NumberUPC/EAN
1 kΩR-V38-1KL841358100505
5 kΩR-V38-5KL609722158718
10 kΩR-V38-10KL609722158626
25 kΩR-V38-25KL609722122689
50 kΩR-V38-50KL609722158701
100 kΩR-V38-100KL609722122627
250 kΩR-V38-250KL609722122665
500 kΩR-V38-500KL609722123280
1 MΩR-V38-1ML609722158633
2 MΩR-V38-2ML609722123266
Product Measurements by Type
Body Depth11.5 mm
Body Width24 mm
Bushing Length6.5 mm
Bushing Thread1 MΩ versionR-V38-1ML3/8"-32NEF
1 kΩ versionR-V38-1KL3/8"-32UNF
2 MΩ versionR-V38-2ML3/8"-32NEF
5 kΩ versionR-V38-5KL3/8"-32UNF
10 kΩ versionR-V38-10KL3/8"-32UNF
25 kΩ versionR-V38-25KL3/8"-32UNF
50 kΩ versionR-V38-50KL3/8"-32UNF
100 kΩ versionR-V38-100KL3/8"-32UNF
250 kΩ versionR-V38-250KL3/8"-32UNF
500 kΩ versionR-V38-500KL3/8"-32UNF
Hex Nut Thickness2.2 mm
Hex Nut Width12.6 mm
Insulation Resistance＞100 MΩ at 500VDC
Life15,000 cycles
Manual Soldering Max Temp for 3 sec.350 °C
Max. Working Voltage500V
Max Rotational Stopper Strength6Kgf
Operating (Useable) Temperature-10 °C to +70 °C
Rated Wattage (Power)0.5W
Rotational Torque20-200 gf-cm
Shaft Diameter6.35 mm
Sliding Noise<47 mV
Tap Residual Resistance≤100 Ω
TaperLinear
Tolerance1 MΩ versionR-V38-1ML±30%
1 kΩ versionR-V38-1KL±20%
2 MΩ versionR-V38-2ML±30%
5 kΩ versionR-V38-5KL±20%
10 kΩ versionR-V38-10KL±20%
25 kΩ versionR-V38-25KL±20%
50 kΩ versionR-V38-50KL±20%
100 kΩ versionR-V38-100KL±20%
250 kΩ versionR-V38-250KL±20%
500 kΩ versionR-V38-500KL±20%
Total Rotational Angle300° ±5°
Total Shaft Length15 mm
Washer I.D.9.7 mm
Washer O.D.16 mm
Washer Thickness0.4 mm
Withstand Voltage500 VAC for 1 min.
Packaging Information
Packaging Dimensions1.3 in. × 1.1 in. × 1 in.
Weight (Packaging)0.024 lbs.
Product Measurements by Item
R-V38-5KL - 5 kΩ versionBody Depth11.5 mm
Body Width24 mm
Bushing Length6.5 mm
Bushing Thread3/8"-32UNF
Hex Nut Thickness2.2 mm
Hex Nut Width12.6 mm
Insulation Resistance＞100 MΩ at 500VDC
Life15,000 cycles
Manual Soldering Max Temp for 3 sec.350 °C
Max. Working Voltage500V
Max Rotational Stopper Strength6Kgf
Operating (Useable) Temperature-10 °C to +70 °C
Rated Wattage (Power)0.5W
Rotational Torque20-200 gf-cm
Shaft Diameter6.35 mm
Sliding Noise<47 mV
Tap Residual Resistance≤100 Ω
TaperLinear
Tolerance±20%
Total Rotational Angle300° ±5°
Total Shaft Length15 mm
Washer I.D.9.7 mm
Washer O.D.16 mm
Washer Thickness0.4 mm
Withstand Voltage500 VAC for 1 min.
R-V38-1KL - 1 kΩ versionBody Depth11.5 mm
Body Width24 mm
Bushing Length6.5 mm
Bushing Thread3/8"-32UNF
Hex Nut Thickness2.2 mm
Hex Nut Width12.6 mm
Insulation Resistance＞100 MΩ at 500VDC
Life15,000 cycles
Manual Soldering Max Temp for 3 sec.350 °C
Max. Working Voltage500V
Max Rotational Stopper Strength6Kgf
Operating (Useable) Temperature-10 °C to +70 °C
Rated Wattage (Power)0.5W
Rotational Torque20-200 gf-cm
Shaft Diameter6.35 mm
Sliding Noise<47 mV
Tap Residual Resistance≤100 Ω
TaperLinear
Tolerance±20%
Total Rotational Angle300° ±5°
Total Shaft Length15 mm
Washer I.D.9.7 mm
Washer O.D.16 mm
Washer Thickness0.4 mm
Withstand Voltage500 VAC for 1 min.
R-V38-10KL - 10 kΩ versionBody Depth11.5 mm
Body Width24 mm
Bushing Length6.5 mm
Bushing Thread3/8"-32UNF
Hex Nut Thickness2.2 mm
Hex Nut Width12.6 mm
Insulation Resistance＞100 MΩ at 500VDC
Life15,000 cycles
Manual Soldering Max Temp for 3 sec.350 °C
Max. Working Voltage500V
Max Rotational Stopper Strength6Kgf
Operating (Useable) Temperature-10 °C to +70 °C
Rated Wattage (Power)0.5W
Rotational Torque20-200 gf-cm
Shaft Diameter6.35 mm
Sliding Noise<47 mV
Tap Residual Resistance≤100 Ω
TaperLinear
Tolerance±20%
Total Rotational Angle300° ±5°
Total Shaft Length15 mm
Washer I.D.9.7 mm
Washer O.D.16 mm
Washer Thickness0.4 mm
Withstand Voltage500 VAC for 1 min.
R-V38-25KL - 25 kΩ versionBody Depth11.5 mm
Body Width24 mm
Bushing Length6.5 mm
Bushing Thread3/8"-32UNF
Hex Nut Thickness2.2 mm
Hex Nut Width12.6 mm
Insulation Resistance＞100 MΩ at 500VDC
Life15,000 cycles
Manual Soldering Max Temp for 3 sec.350 °C
Max. Working Voltage500V
Max Rotational Stopper Strength6Kgf
Operating (Useable) Temperature-10 °C to +70 °C
Rated Wattage (Power)0.5W
Rotational Torque20-200 gf-cm
Shaft Diameter6.35 mm
Sliding Noise<47 mV
Tap Residual Resistance≤100 Ω
TaperLinear
Tolerance±20%
Total Rotational Angle300° ±5°
Total Shaft Length15 mm
Washer I.D.9.7 mm
Washer O.D.16 mm
Washer Thickness0.4 mm
Withstand Voltage500 VAC for 1 min.
R-V38-50KL - 50 kΩ versionBody Depth11.5 mm
Body Width24 mm
Bushing Length6.5 mm
Bushing Thread3/8"-32UNF
Hex Nut Thickness2.2 mm
Hex Nut Width12.6 mm
Insulation Resistance＞100 MΩ at 500VDC
Life15,000 cycles
Manual Soldering Max Temp for 3 sec.350 °C
Max. Working Voltage500V
Max Rotational Stopper Strength6Kgf
Operating (Useable) Temperature-10 °C to +70 °C
Rated Wattage (Power)0.5W
Rotational Torque20-200 gf-cm
Shaft Diameter6.35 mm
Sliding Noise<47 mV
Tap Residual Resistance≤100 Ω
TaperLinear
Tolerance±20%
Total Rotational Angle300° ±5°
Total Shaft Length15 mm
Washer I.D.9.7 mm
Washer O.D.16 mm
Washer Thickness0.4 mm
Withstand Voltage500 VAC for 1 min.
R-V38-100KL - 100 kΩ versionBody Depth11.5 mm
Body Width24 mm
Bushing Length6.5 mm
Bushing Thread3/8"-32UNF
Hex Nut Thickness2.2 mm
Hex Nut Width12.6 mm
Insulation Resistance＞100 MΩ at 500VDC
Life15,000 cycles
Manual Soldering Max Temp for 3 sec.350 °C
Max. Working Voltage500V
Max Rotational Stopper Strength6Kgf
Operating (Useable) Temperature-10 °C to +70 °C
Rated Wattage (Power)0.5W
Rotational Torque20-200 gf-cm
Shaft Diameter6.35 mm
Sliding Noise<47 mV
Tap Residual Resistance≤100 Ω
TaperLinear
Tolerance±20%
Total Rotational Angle300° ±5°
Total Shaft Length15 mm
Washer I.D.9.7 mm
Washer O.D.16 mm
Washer Thickness0.4 mm
Withstand Voltage500 VAC for 1 min.
R-V38-250KL - 250 kΩ versionBody Depth11.5 mm
Body Width24 mm
Bushing Length6.5 mm
Bushing Thread3/8"-32UNF
Hex Nut Thickness2.2 mm
Hex Nut Width12.6 mm
Insulation Resistance＞100 MΩ at 500VDC
Life15,000 cycles
Manual Soldering Max Temp for 3 sec.350 °C
Max. Working Voltage500V
Max Rotational Stopper Strength6Kgf
Operating (Useable) Temperature-10 °C to +70 °C
Rated Wattage (Power)0.5W
Rotational Torque20-200 gf-cm
Shaft Diameter6.35 mm
Sliding Noise<47 mV
Tap Residual Resistance≤100 Ω
TaperLinear
Tolerance±20%
Total Rotational Angle300° ±5°
Total Shaft Length15 mm
Washer I.D.9.7 mm
Washer O.D.16 mm
Washer Thickness0.4 mm
Withstand Voltage500 VAC for 1 min.
R-V38-500KL - 500 kΩ versionBody Depth11.5 mm
Body Width24 mm
Bushing Length6.5 mm
Bushing Thread3/8"-32UNF
Hex Nut Thickness2.2 mm
Hex Nut Width12.6 mm
Insulation Resistance＞100 MΩ at 500VDC
Life15,000 cycles
Manual Soldering Max Temp for 3 sec.350 °C
Max. Working Voltage500V
Max Rotational Stopper Strength6Kgf
Operating (Useable) Temperature-10 °C to +70 °C
Rated Wattage (Power)0.5W
Rotational Torque20-200 gf-cm
Shaft Diameter6.35 mm
Sliding Noise<47 mV
Tap Residual Resistance≤100 Ω
TaperLinear
Tolerance±20%
Total Rotational Angle300° ±5°
Total Shaft Length15 mm
Washer I.D.9.7 mm
Washer O.D.16 mm
Washer Thickness0.4 mm
Withstand Voltage500 VAC for 1 min.
R-V38-1ML - 1 MΩ versionBody Depth11.5 mm
Body Width24 mm
Bushing Length6.5 mm
Bushing Thread3/8"-32NEF
Hex Nut Thickness2.2 mm
Hex Nut Width12.6 mm
Insulation Resistance＞100 MΩ at 500VDC
Life15,000 cycles
Manual Soldering Max Temp for 3 sec.350 °C
Max. Working Voltage500V
Max Rotational Stopper Strength6Kgf
Operating (Useable) Temperature-10 °C to +70 °C
Rated Wattage (Power)0.5W
Rotational Torque20-200 gf-cm
Shaft Diameter6.35 mm
Sliding Noise<47 mV
Tap Residual Resistance≤100 Ω
TaperLinear
Tolerance±30%
Total Rotational Angle300° ±5°
Total Shaft Length15 mm
Washer I.D.9.7 mm
Washer O.D.16 mm
Washer Thickness0.4 mm
Withstand Voltage500 VAC for 1 min.
R-V38-2ML - 2 MΩ versionBody Depth11.5 mm
Body Width24 mm
Bushing Length6.5 mm
Bushing Thread3/8"-32NEF
Hex Nut Thickness2.2 mm
Hex Nut Width12.6 mm
Insulation Resistance＞100 MΩ at 500VDC
Life15,000 cycles
Manual Soldering Max Temp for 3 sec.350 °C
Max. Working Voltage500V
Max Rotational Stopper Strength6Kgf
Operating (Useable) Temperature-10 °C to +70 °C
Rated Wattage (Power)0.5W
Rotational Torque20-200 gf-cm
Shaft Diameter6.35 mm
Sliding Noise<47 mV
Tap Residual Resistance≤100 Ω
TaperLinear
Tolerance±30%
Total Rotational Angle300° ±5°
Total Shaft Length15 mm
Washer I.D.9.7 mm
Washer O.D.16 mm
Washer Thickness0.4 mm
Withstand Voltage500 VAC for 1 min.

My Project Lists

You must be logged in to add items to a project list.

Questions and Answers

Click each question to see its answers.
Asked by Anonymous on November 1st, 2015.
JustinG
November 2nd, 2015
Staff Member
Top Contributor
An OEM replacement for the Crybaby Wah would be our SKU- P-ECB-24B
Answer this question
Asked by Zulch on April 2nd, 2019.
BradWbr
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.
Answer this question
Terms and Conditions
Add a review

Product Reviews

4.95 out of 5 based on 19 reviews
- January 10th, 2022
5 out of 5

Stable and reliable! Have used these in amps and guitars with great success. Prefer Alphas over CTS anyday :-)

- October 18th, 2021
5 out of 5

Nice compact design. The resistance is written on the face which makes it easy to identify which one you want when you have a mixed batch. Wiper action is smooth. Access holes in case allow cleaner solution to be sprayed in if needed. Resistance across the entire range is very linear with no sudden jumps or spikes; oscilloscope shows a nice clean wave with no noise.

- December 11th, 2020
5 out of 5

Perfect replacement, good quality and value. This saved a Heathkit oscilloscope from the trash heap! Great service. Thank you!!!

- October 4th, 2020
5 out of 5

I always use the ALPHA pots !! Excellent !! Very precise values , and AES is the best supplier !!

- August 6th, 2020
5 out of 5

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.

- November 17th, 2019
5 out of 5

Great pot. Smooth operation.

- November 17th, 2019
5 out of 5

Excellent linear pot. Smooth operation.

- October 31st, 2019
5 out of 5

Nice solid unit - smooth action

- December 26th, 2018
5 out of 5

These seem to have tighter tolerances than CTS pots, and I like the firmer rotation feel.

- December 25th, 2018
5 out of 5

I bought these for the Bass and Treble controls in the tube pre amp that I built.
They work fine.