ICL7660MTV IC CMOS Voltage Converter 8 Pin Can (1 piece): Amazon.com: Industrial & Scientific
Major Brands CA3130E ICS and Semiconductors, CMOS General Purpose OP Amplifier, PDIP-8, 16V, 8-Pin, 4.95 mm H x 7.11 mm W x 10.16 mm L (Pack of 3): Electronic Component Amplifiers: Amazon.com:
Amazon.com: NTE Electronics PN4393 Silicon N-Channel JFET Transistor Chopper and High Speed Switch, TO-92 Package, 5-30 mA Zero-Gate Voltage Drain Current, 30V Drain-Gate Voltage : Industrial & Scientific
Texas Instruments TLV2772CP ICS and Semiconductors, OP Amplifier, -3 Volt, 8-Pin, Plastic Dip Tube, 6.35 mm W x 4.57 mm H x 9.81 mm L (Pack of 5): Electronic Component Amplifiers: Amazon.com: Industrial & Scientific
Juried Engineering CD4001BE IC CMOS Quad 2-Input NOR Gate (Pack of 1): Amazon.com: Industrial & Scientific