M43P501KB40 Vishay | Vishay 43P Series 20-Turn Through Hole Trimmer Resistor with Pin Terminations, 500Ω ±10% 1/2W ±100ppm/°C Side Adjust | 162-192 | RS Components
50 ohm Trimmer Trim Pot Variable Resistor 3106Y | West Florida Components
Bourns 3296Z-1-102 Resistor Trimmer Potentiometer, 10% Tolerance, 1/2 Watt, 25 Turn, 2.19 mm Pin Through Hole Tube, 1k Ohm, 4.83 mm W x 10.03 mm H x 11.05 mm L (Pack of 4): Amazon.com: Industrial & Scientific
64WR5KLF - TT Electronics - Trimmers, Potentiometers and Rheostat Resistors
Amazon.com: Aexit 3 x Variable Resistors 50K ohm Trimpot Trimmer Pot Variable Potentiometers Resistors 6.8mm : Industrial & Scientific