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Jensen speakers usually have their codes along the rim of the basket. The date code is 220945 where 220=Jensen, 9=last digit of the year (1959), and 45=week of the year. The model number is P10R. |
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Oxfords typically have the codes on one of the larger spokes in the speaker basket. The date code on this example is 465-538 where 465=oxford, 5=last digit of the year (1965) and 38=week of the year ( |
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| Code | Manufacturer |
|---|---|
| 67 | Eminence |
| 73 | J.B. Lansing (JBL) |
| 137 | CTS |
| 220 | Jensen |
| 285 | Rola |
| 328 | Utah |
| 391 | Altec-Lansing |
| 433 | Cleveland |
| 465 | Oxford |
| 649 | Electro Voice (EV) |