| 77721 | 2N1519 | Germanium PNP Transistor | Motorola |
| 77722 | 2N1519 | Germanium PNP Power Transistor, TO-36 Package | Silicon Transistor Corporation |
| 77723 | 2N1520 | Germanium PNP Transistor | Motorola |
| 77724 | 2N1520 | Germanium PNP Power Transistor, TO-36 Package | Silicon Transistor Corporation |
| 77725 | 2N1521 | Germanium PNP Transistor | Motorola |
| 77726 | 2N1521 | Germanium PNP Power Transistor, TO-36 Package | Silicon Transistor Corporation |
| 77727 | 2N1522 | Germanium Power Transistors | GPD Optoelectronic Devices |
| 77728 | 2N1522 | Germanium PNP Transistor | Motorola |
| 77729 | 2N1522 | Germanium PNP Power Transistor, TO-36 Package | Silicon Transistor Corporation |
| 77730 | 2N1523 | Germanium PNP Transistor | Motorola |
| 77731 | 2N1523 | Germanium PNP Power Transistor, TO-36 Package | Silicon Transistor Corporation |
| 77732 | 2N1524 | Germanium PNP Transistor | Motorola |
| 77733 | 2N1525 | Germanium PNP Transistor | Motorola |
| 77734 | 2N1526 | Germanium PNP Transistor | Motorola |
| 77735 | 2N1527 | Germanium PNP Transistor | Motorola |
| 77736 | 2N1528 | Silicon NPN Transistor | Motorola |
| 77737 | 2N1529 | PNP germanium power transistor in high-reliability equipment | Motorola |
| 77738 | 2N1529 | Germanium PNP Transistor | Motorola |
| 77739 | 2N1529 | Trans GP BJT NPN 40V 0.5A 3-Pin TO-5 | New Jersey Semiconductor |
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| 77740 | 2N1529 | Germanium PNP Power Transistor, TO-3 Package | Silicon Transistor Corporation |
| 77741 | 2N1529A | PNP germanium power transistor in high-reliability equipment | Motorola |
| 77742 | 2N1529A | Germanium PNP Transistor | Motorola |
| 77743 | 2N1529A | Trans GP BJT NPN 40V 0.5A 3-Pin TO-5 | New Jersey Semiconductor |
| 77744 | 2N1529A | Germanium PNP Power Transistor, TO-3 Package | Silicon Transistor Corporation |
| 77745 | 2N1530 | PNP germanium power transistor in high-reliability equipment | Motorola |
| 77746 | 2N1530 | Germanium PNP Transistor | Motorola |
| 77747 | 2N1530 | Trans GP BJT NPN 40V 0.5A 3-Pin TO-5 | New Jersey Semiconductor |
| 77748 | 2N1530 | Germanium PNP Power Transistor, TO-3 Package | Silicon Transistor Corporation |
| 77749 | 2N1530A | PNP germanium power transistor in high-reliability equipment | Motorola |
| 77750 | 2N1530A | Germanium PNP Transistor | Motorola |
| 77751 | 2N1530A | Trans GP BJT NPN 40V 0.5A 3-Pin TO-5 | New Jersey Semiconductor |
| 77752 | 2N1530A | Germanium PNP Power Transistor, TO-3 Package | Silicon Transistor Corporation |
| 77753 | 2N1531 | PNP germanium power transistor in high-reliability equipment | Motorola |
| 77754 | 2N1531 | Germanium PNP Transistor | Motorola |
| 77755 | 2N1531 | Trans GP BJT NPN 40V 0.5A 3-Pin TO-5 | New Jersey Semiconductor |
| 77756 | 2N1531 | Germanium PNP Power Transistor, TO-3 Package | Silicon Transistor Corporation |
| 77757 | 2N1531A | PNP germanium power transistor in high-reliability equipment | Motorola |
| 77758 | 2N1531A | Germanium PNP Transistor | Motorola |
| 77759 | 2N1531A | Trans GP BJT NPN 40V 0.5A 3-Pin TO-5 | New Jersey Semiconductor |
| 77760 | 2N1531A | Germanium PNP Power Transistor, TO-3 Package | Silicon Transistor Corporation |
