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Potentiometer - Alpha, Audio, 3/8" Bushing

Potentiometer - Alpha, Audio, 3/8" Bushing

Alpha
Potentiometer - Alpha, Audio, 3/8" Bushing image 1
Customer image:<br/>""
Customer image:<br/>"Image shows bench testing of a synchrodyne AM broadcast receiver. Three pots in back connect to the RF/AF breadboard for RF gain, tuning, and AF gain control. Knobs also came from AES."
Customer image:<br/>"Vogel Instrument Company Evolution 30"
Customer image:<br/>"Vogel Instrument Company Evolution 30"
Customer image:<br/>"HVC to Trainwreck "
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Potentiometer - Alpha, Audio, 3/8" Bushing image 1
Customer Images:
Customer image: ""Customer image: "Image shows bench testing of a synchrodyne AM broadcast receiver. Three pots in back connect to the RF/AF breadboard for RF gain, tuning, and AF gain control. Knobs also came from AES."Customer image: "Vogel Instrument Company Evolution 30"Customer image: "Vogel Instrument Company Evolution 30"Customer image: "HVC to Trainwreck "
Starting at: $1.90
In Stock

Standard fit for most vintage American made tube amps.

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

Part Numbers
ResistanceOur Part NumberUPC/EAN
1 kΩR-V38-1KA841358100512
10 kΩR-V38-10KA609722122634
25 kΩR-V38-25KA609722122672
100 kΩR-V38-100KA609722122610
250 kΩR-V38-250KA609722122658
500 kΩR-V38-500KA609722123273
1 MΩR-V38-1MA609722122641
Body 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
Life1 MΩ versionR-V38-1MA15,000 cycles
1 kΩ versionR-V38-1KA15,000 cycles
10 kΩ versionR-V38-10KA15,000 cycles
25 kΩ versionR-V38-25KA15,000 cycles
100 kΩ versionR-V38-100KA15,000 cycles
250 kΩ versionR-V38-250KA15,000 cycles
500 kΩ versionR-V38-500KA15,000 cycles
Manual Soldering Max Temp for 3 sec.1 MΩ versionR-V38-1MA350 °C
1 kΩ versionR-V38-1KA350 °C
10 kΩ versionR-V38-10KA350 °C
25 kΩ versionR-V38-25KA350 °C
100 kΩ versionR-V38-100KA300 °C
250 kΩ versionR-V38-250KA350 °C
500 kΩ versionR-V38-500KA350 °C
Max. Working Voltage250V
Max Rotational Stopper Strength1 MΩ versionR-V38-1MA6Kgf
1 kΩ versionR-V38-1KA6Kgf
10 kΩ versionR-V38-10KA6Kgf
25 kΩ versionR-V38-25KA6Kgf
100 kΩ versionR-V38-100KA6Kgf
250 kΩ versionR-V38-250KA6Kgf
500 kΩ versionR-V38-500KA6Kgf
Operating (Useable) Temperature-10 °C to +70 °C
Rated Wattage (Power)0.25W
Rotational Torque20-200 gf-cm
Shaft Diameter6.35 mm
Sliding Noise<47 mV
Tap Residual Resistance≤100 Ω
TaperAudio
Tolerance1 MΩ versionR-V38-1MA±30%
1 kΩ versionR-V38-1KA±20%
10 kΩ versionR-V38-10KA±20%
25 kΩ versionR-V38-25KA±20%
100 kΩ versionR-V38-100KA±20%
250 kΩ versionR-V38-250KA±20%
500 kΩ versionR-V38-500KA±20%
Total Rotational Angle300° ±5°
Total Shaft Length1 MΩ versionR-V38-1MA15 mm
1 kΩ versionR-V38-1KA15 mm
10 kΩ versionR-V38-10KA15 mm
25 kΩ versionR-V38-25KA15 mm
100 kΩ versionR-V38-100KA15 mm
250 kΩ versionR-V38-250KA15 mm
500 kΩ versionR-V38-500KA15 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. × 0.973 in. × 1.048 in.
Weight (Packaging)0.0309 lbs.
R-V38-1KA - 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 Voltage250V
Max Rotational Stopper Strength6Kgf
Operating (Useable) Temperature-10 °C to +70 °C
Rated Wattage (Power)0.25W
Rotational Torque20-200 gf-cm
Shaft Diameter6.35 mm
Sliding Noise<47 mV
Tap Residual Resistance≤100 Ω
TaperAudio
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-V38-10KA - 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 Voltage250V
Max Rotational Stopper Strength6Kgf
Operating (Useable) Temperature-10 °C to +70 °C
Rated Wattage (Power)0.25W
Rotational Torque20-200 gf-cm
Shaft Diameter6.35 mm
Sliding Noise<47 mV
Tap Residual Resistance≤100 Ω
TaperAudio
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-V38-25KA - 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 Voltage250V
Max Rotational Stopper Strength6Kgf
Operating (Useable) Temperature-10 °C to +70 °C
Rated Wattage (Power)0.25W
Rotational Torque20-200 gf-cm
Shaft Diameter6.35 mm
Sliding Noise<47 mV
Tap Residual Resistance≤100 Ω
TaperAudio
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-V38-100KA - 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.300 °C
Max. Working Voltage250V
Max Rotational Stopper Strength6Kgf
Operating (Useable) Temperature-10 °C to +70 °C
Rated Wattage (Power)0.25W
Rotational Torque20-200 gf-cm
Shaft Diameter6.35 mm
Sliding Noise<47 mV
Tap Residual Resistance≤100 Ω
TaperAudio
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-V38-250KA - 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 Voltage250V
Max Rotational Stopper Strength6Kgf
Operating (Useable) Temperature-10 °C to +70 °C
Rated Wattage (Power)0.25W
Rotational Torque20-200 gf-cm
Shaft Diameter6.35 mm
Sliding Noise<47 mV
Tap Residual Resistance≤100 Ω
TaperAudio
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-V38-500KA - 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 Voltage250V
Max Rotational Stopper Strength6Kgf
Operating (Useable) Temperature-10 °C to +70 °C
Rated Wattage (Power)0.25W
Rotational Torque20-200 gf-cm
Shaft Diameter6.35 mm
Sliding Noise<47 mV
Tap Residual Resistance≤100 Ω
TaperAudio
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-V38-1MA - 1 MΩ 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 Voltage250V
Max Rotational Stopper Strength6Kgf
Operating (Useable) Temperature-10 °C to +70 °C
Rated Wattage (Power)0.25W
Rotational Torque20-200 gf-cm
Shaft Diameter6.35 mm
Sliding Noise<47 mV
Tap Residual Resistance≤100 Ω
TaperAudio
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.

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Product Reviews

4.71 out of 5 based on 14 reviews
seb-ear-aaaaox.net - August 18th, 2022
5 out of 5

A high level of consistency & very decent quality at a great price point. They work out great for me.

Yoonshik Hong - November 20th, 2019
5 out of 5

Very good

zeke - May 11th, 2019
5 out of 5

great price for this pot, will be used in effects pedal builds.

Dean Curtis - February 3rd, 2019
5 out of 5

These pots are well made and a great value.

Derek S - January 11th, 2019
5 out of 5

The Alphas are decent pots, use these in high voltage conversion amps, price is great from AES and fast shipping. The only issue I've had is when using knobs that are tight, pushing and pulling tight knobs on and often causes damage, so we are more careful now with no issues, and continue to use Alpha Pots.

dazerp - February 29th, 2016
5 out of 5

Alpha pots are really good quality, with the exception of one 250K linear I had fail right out of the chute on a tone stack, but honestly that could have been a stray solder blob that fell into the works. Other than that, very smooth action, and they ohm out better than the advertized tolerance.

Peter Freiberger - January 13th, 2016
1 out of 5

The pot I got was noisy. To Antique Electronic Supply's credit they immediately sent another. I haven't installed it yet. I suppose you get what you pay for, and for a buck and a half...

DLC - September 6th, 2015
5 out of 5

As described, good value

David Fauver - May 20th, 2015
5 out of 5

If you repair a lot of older tube amps , you better have 5 or 6 of these on hand all the time. Alpha potentiometers are dependable , and don't break the bank.

Afab - April 10th, 2015
5 out of 5

Nice pot, I like that they have all the different values that I need in matching style pots. Can't beat their prices. Good quality.