Lot OF 4 Elenco Snap Circuits Replacement Parts A1 U4 Q1 Q2

SNAP CIRCUITS Elenco Amplifier IC Unit (U4), Part # 6SCU4

Electronic Snap Circuits Elenco Amplifier IC Unit (U4), Part # 6SCU4 U4 Yellow

Elenco Snap Circuit Replacement Part U1 Music U2 Alarm U3 Space War U4 Amplifier

Snap Circuits by Elenco U4 Amplifier IC Replacement Add-On Part

ELENCO Snap Circuits Replacement Part U4 AMPLIFIER IC / 29 - Official 6SCU4

Snap Circuits by Elenco U4 Amplifier IC Replacement Add-On Part Piece YELLOW