This month a special friend from the 74 series.
That useful Hex Inverter the 7404
Serving suggestion: triple piggy-back with a banked resister chip and common cathode 7-segment display. Garnish with assorted capacitors ( 47-470 microfarads ). Affix 3 dead house flies and connect to an R12 4.5v source.
Availability: RM 480z. Socketed.