All boxes are identified, parts are vintage and unused (New Old Stock NOS). Includes the following RCA transistor quantities and part numbers: 7 X 142711, 1 X 142838 (Silicon), 3 X 137340, 1 X 150364, 2 X 142839, 1 X 146851, 1 X 143794, 2 X 151263, 1 X 142691, 1 X 141558, 1 X 139268, 1 X 133690, 1 X 143792, 1 X 146847, 1 X 132823, 1 X 153350, 1 X 145410, 1 X 141344