Juried Engineering CF680-5-025 Carbon Film Resistor 680 Ohm 5% 0.25W (1/4W) Conformal Coated (Pack of 25): Amazon.com: Industrial & Scientific
smseace 680 pcs 0 Ohm-1M Ohm with 1/2W 68 Values Metal Resistor Assortment Kit Used for DIY and Experiments Packed in Box SM-11-3: Amazon.com: Industrial & Scientific
uxcell 10Pcs 680 Ohm Resistor, 5W 5% Tolerance Metal Oxide Film Resistors, Axial Lead, Flame Proof for DIY Electronic Projects and Experiments: Amazon.com: Industrial & Scientific