Building Filters
 - Texas Instruments SNJ54192J Counter Single 4-Bit Decade UP/Down 16-Pin- Manufacturer: Texas Instruments
 - Texas Instruments SNJ54192J Counter Single 4-Bit Decade UP/Down 16-Pin Condition : New $20 USDSan Jose, CA
 - Texas Instruments, SNJ54S169J Counter Single 4-Bit Sync Binary UP/Down 16-Pin- Manufacturer: Texas Instruments
 - Texas Instruments, SNJ54S169J Counter Single 4-Bit Sync Binary UP/Down 16-Pin Condition : New $15 USDSan Jose, CA
 - Texas Instruments SNC54185AJ Single 4-Bit IC 16-Pin Ceramic Dip Counter- Manufacturer: Texas Instruments
 - Texas Instruments SNC54185AJ Single 4-Bit IC 16-Pin Ceramic Dip Counter Condition : New $15 USDSan Jose, CA
