Index of /pdf/pcm
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   DIR /pdf
   DIR pictures
       PCM-12_Brochure.pdf
       PCM-12_Casette_Int_Diag.pdf
       PCM-12_Omega_CPU_Diag.pdf
       PCM-12_Omega_Front_Panel_Diag.pdf
       PCM-12_Omega_System_Operating_Manual_Jun80.pdf
       PCM-12_Omega_TTY-CRT_Interface_Diag.pdf
       PCM-12A_4k_Basic_Manual_Dec75.pdf
       PCM-4k_Static_Mem_schem.pdf