Pickett N515-T Duplex* Slide Rule for Electronics - Project Apollo Atomic Age - 1960 F*S

Apollo Era, ten-inch white aluminum linear slide rule has a nylon cursor. (The N in the model number is for "nylon," and the T denotes the rule's "traditional" white color.) The rule is held together with stamped aluminum contoured posts. The front of the base has (Lr) H, (fx)2Π, A, D, L, and Ln scales. The front of the slide has (Cr) B, S, T, CI, and C scales. The left end of the slide is marked (facing vertically): ELECTRONIC (/) MODEL N-515-T. A gray Pickett logo in the style used between 1958 and 1962 is at the right end. The number 349 is printed above the logo. The back of the rule contains various formulae relating to electronics, such as temperature conversion, Ohm's Law for AC and DC circuits, parallel resistance, coupled inductance, and efficiency. Short (approximately 2.5 inches) scales on the slide are used with the reactance and resonance decimal point located at the left end of the rule. A logo at the right end of the slide has i superimposed on a C, superimposed on a boo