KY-3
Encyclopedia : K : KY : KY3 : KY-3
- This article is about the telephone system. For the district of Kentucky, see United States House of Representatives, Kentucky District 3
According to information on display in 2002 at the NSA's National Cryptologic Museum, the KY-3 provided high fidelity secure voice over special wideband circuits. It was used by executives, diplomats, military leaders and the intelligence community. Some 2500 units were produced between 1965 and 1967 and it was one of the first security equipments to use transistors packaged into functional modules. The unit was packaged in a large, grey relay rack cabinet.
The KY-3 was replaced the STU-I and STU-II.
Source
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See also
| Cipher machines [edit] |
| Rotor machines: CCM | Enigma | Fialka | Hebern | HX-63 | KL-7 | Lacida | M-325 | Mercury | NEMA | OMI | Portex | SIGABA | SIGCUM | Singlet | Typex |
| Mechanical: Bazeries cylinder | C-36 | C-52 | CD-57 | Cipher disk | HC-9 | Kryha | Jefferson disk | M-94 | M-209 | Reihenschieber | Scytale |
| Teleprinter: 5-UCO | BID 770 | KW-26 | KW-37 | Lorenz SZ 40/42 | Siemens and Halske T52 |
| Secure voice: KY-3 | KY-57 | KY-58 | KY-68 | OMNI | SIGSALY | STE | STU-II | STU-III | VINSON | SCIP | Sectéra Secure Module |
| Miscellaneous: Cryptex | JADE | KG-84 | KL-43 | Noreen | PURPLE | Pinwheel | Rockex |
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