Bourns Guitar and amplifier pots. These are drop in replacement components. * Low torque, Carbon element * 1/4" Knurled Split Shaft, 3/8" Bushing Width, 3/8" Bushing Length * Tolerance: ±20 %, Power Rating: 0.25 watt, Maximum Operating Voltage: 250 V * Bourns Series Number: PDB241-GTR