*Released under the John F. Kennedy Assassination Records Collection Act of 1997 (44 USC 2107 Hote) .” DATE: 11-14-2017 fora 1-Mr. Gale (attn. J.E. Kelly, room 1541) Gare) i-Mr...Conrad.— April 19, 1965 ~~ L. 1-Mr. Millen 7G mo 1-Mr. Baker 1-Mr. Corbett fff Airtel re or | \ . TO: SAC, Philadelphia (92-1027 Sub F) JUNE FROM: Director, FBI (92-6054) —— / 5 LA COSA NOSTRA PH DIVISION AR - CONSPIRACY Reurairtel 4/12/65 in captioned matter furnishing details for the ' proposed MISUR installation at 902 South 8th Street, Philadelphia. The \ following technical details are set forth for the information of the sound- | trained Agents of your office. ; . . A review of the technical data indicatés the ZAM unit will perform satisfactorily in captioned installation. Accordingly, the Western Electric ) - 500 L/M telephone instrument, previously furnished by your office, is being altered to include the ZAM unit in the network. When the alteration has been completed and tests made under simulated line conditions similar to those described in reairtel, the telephone instrument along with other equipment for remote controlling the SPMT urit will be forwarded to Philadelphia. Tests suggested by your telephone company source may be conducted under controlled conditions in room 66 of the Federal Building by the source temporarily assigning a number from the same exchange as the target instrument. The requested tests should be completed within a short time and should not delay installation at the target area more than one day. i Authority to install will be handled separately. . NOTE: Target area is a known meeting. place for ‘members of captioned organization. An on-the-spot survey conducted by the Laboratory and conferences with telephone company sources indicate that the SPMT approach is the only relnont —— 4 odia for effecting MISUR coverage. Special remote control SPMT equipment _ will be used for this installation. ‘All switching equipment will be concealed in Bureau-assigned space in the Federal Building. Telephone company records will not indicate routin Rosen —<C«SrSi—MALCR, yw ro Sullivan : ‘ é, , Tavel \, okt, D \ Trotte ve CKC . ( Cr i Tele. om . , fe a ¥ TBLETYPE UNIT L_1 | APR #9 1968 | é offtarget service through Bureau-controlled . , MAILED. __ COMM FB Docld: 32307394 Page 2?
Released under the John F. Kennedy Assassination Records Collection Act of 1992 (44 USC 2107 Hore} _ narra fase 14208 _— _ | FBI | Date: 4/12/65 | Transmit the following in | (Type in plain text or code) Via AIRTEL REGISTERED MAIL | (Priority or Method of Mailing) . | ee LL LL bo i TO: Director; FBI (92-6054 ) , Attn: FBI Laboratory, Electronic Section SOGEROM: SAC, Philadelphia (92-1027 Sub F) (P) J UNE ( ) LA COSA NOSTRA PH DIVISION AR - CONSPIRACY Re visit of Supervisor CHARLES kK. CORBETT, of the Laboratory, to Phila. 4/5/65. ‘ Phone company contact has furnished a tabulation of resistances requested as follows: Customer to MArket 7 exchange, 9th and Race Streets 204 ohms ' MA 7 exchange to Federal Building, 9th and Market Streets 72 ohms 4th floor Main Frame, Federal Building, to Room 66 in yy basement 25 ohms a Sincé .the last two figures would require pairs both! to and from these locations, these figures should be doubled. * Accordingly, the total resistance would be 204 plus 144, plus 50, equals 398 ohms. Sufficient spare pairs are available between the Federal Building and the MA 7 exchange so that extra pairs could be used to halve that resistance. Contact recalled telling SA CORBETT that customer was | tn transmission zone 1. A check revealed custoner is actually in transmission zone 2. He noted, however, that this would make it more logical that the 300 eries ins trume placed . ‘3 With 8 200 Series. | ies REC 18 Es ee ost / 0212. iA sl so t 1965 . 5 é. Bureau ak 5 APRS LAxY 5 AEB ERG Ge G Wick Approved: Special Agent in Charge | | Docld: 32307394 Page 3