| 1513 | OC204 | Silicon p-n-p medium power transistor |
| 1514 | OC204 | Silicon Transistor |
| 1515 | OC205 | Silicon p-n-p medium power transistor |
| 1516 | OC205 | Silicon Transistor |
| 1517 | OC206 | Silicon p-n-p medium power transistor |
| 1518 | OC206 | Silicon Transistor |
| 1519 | OC207 | Silicon p-n-p medium power transistor |
| 1520 | OC207 | Silicon Transistor |
| 1521 | OC22 | Germanium Transistor |
| 1522 | OC23 | Germanium Transistor |
| 1523 | OC24 | Germanium Transistor |
| 1524 | OC25 | Germanium P-N-P high power transistor |
| 1525 | OC25 | Germanium Transistor |
| 1526 | OC28 | Germanium P-N-P high power transistor |
| 1527 | OC29 | Germanium P-N-P high power transistor |
| 1528 | OC35 | Germanium P-N-P high power transistor |
| 1529 | OC36 | Germanium P-N-P high power transistor |
| 1530 | OC41 | Germanium Transistor |
| 1531 | OC42 | Germanium Transistor |
| 1532 | OC43 | Germanium Transistor |
| 1533 | OC44 | Germanium Transistor |
| 1534 | OC45 | Germanium Transistor |
| 1535 | OC70 | Germanium Transistor |
| 1536 | OC71 | Germanium Transistor |
| 1537 | OC72 | Germanium Transistor |
| 1538 | OC75 | Germanium Transistor |
| 1539 | OC76 | Germanium Transistor |
| 1540 | OC77 | Germanium Transistor |
| 1541 | OM200 | Hearing aid amplifier |
| 1542 | ORP10 | Infrared photoconductive detector,indium antimonide detector for room temperature operation |
| 1543 | ORP13 | Infrared photoconductive detector, indium antimonide detector for liquid N2 temperature 77K operation |
| 1544 | ORP52 | Cadmium sulphide photoconductive cells |
| 1545 | ORP60 | Cadmium sulphide photoconductive cells |
| 1546 | ORP61 | Cadmium sulphide photoconductive cells |
| 1547 | ORP62 | Cadmium sulphide photoconductive cells |
| 1548 | ORP69 | Cadmium sulphide photoconductive cells |
| 1549 | ORP90 | Cadmium sulphide photoconductive cells |
| 1550 | ORP93 | Cadmium sulphide photoconductive cells |
| | |
