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| A 500 series telephone is sitting atop the Commercial Telephone Adapter HYX-60/TSEC. On the front of the unit, the LED is labelled "Cipher Rec Ind". (Photo courtesy Kenneth Mitchell, Museum of Cypher Equipment) |
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| Rear view (E-bay photo) |
A 500 series telephone is sitting atop the Commercial Telephone Adapter HYX-60/TSEC. On the front of the unit, the LED is labelled "Cipher Rec Ind". (Photo courtesy Kenneth Mitchell, Museum of Cypher Equipment)
Rear view (E-bay photo)
Can anyone provide any further information on this device?
Back To Menu Page Nov 16/07