CD3
CD3/513
CD3/514
CD3M/515
CD3/516
CD3/517
CD3M/518
CD3/519
CD3M/520
CD3/521
CD4M/501
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New PAL Decoder used in CD3L/506.
DD Spec 8.518. WITHDRAWN.
CH1/55C.
DD 1970.
Sync/Non-sync Decoder to link PAlM/538 with EP5/509.
CHl/12A. DD 1971. DD Spec 8.519. OBSOLESCENT.
Sound in Syncs Decoder for converting ruggedised Sound in
Syncs video signal into separate video and audio output
signals. Comprises AMl/47, C09/3, UN23/577, UN23/568,
UN23/578, UN16/528, UN16/529, UN16/526, AMl/593, AMl/48,
OSl/520, FL4/570, UN23/529 and PS2/136 or PS2/137 on Imhof
rack in a Vero case; dimensions: 495mm x 2l6mm x 318mm.
DD 1972. OBSOLESCENT.
Unit Extract Decoder enabling two 16 element serial PSK
input signals to be decoded to 8 bit parallel output
signals. Used in EP8/504, EP8L/505, EP8L/506, EP8L/507,
EP8L/508. Chassis type CH1/63. DD 1972. OBSOLESCENT.
Bi phase Mark Decoder, used to convert binary data coded
in Bi phase Mark form to serial NRZ form, with strobe
pulse. For use with COl/505. 254mm x 203mm PCB with 71
way
edge
connector.
DD 1972.
DDMI7.262.
DDHB 7.186.
EDI 10140(1)OCT72. OBSOLESCENT.
Time Code Decoder, used to decode the SMPTE time code and
to display the time indication as a digital read out on a
television
picture.
Four
254mm
x 203mm printed wiring
boards in Imhof special 90mm x 481mm chassis with power
supplier.
DD 1972.
DDMI 7.264.
DDHB 7.188.
EDI 10l83(1)JLY73. OBSOLESCENT.
Chroma Key Decoder designed as "add on" unit for existing
mixer installations. Accepts video, sub-carrier and mixed
synchronising pulse inputs and delivers decoded B-Y signal
suitable for driving GE2/604. CHl/12A. DD 1972.
DDMI 8.512. EDI 10l6l(P)DEC72. OBSOLESCENT.
8 line to 128 line Decoder used at Lisnagarvey to accept
monitoring data in a parallel 8 bit binary form and
provide a multiple output to a lamp display unit. PN3/23
with PN3A/37. DD 1972. DDTM 2.404. OBSOLESCENT.
Fault Decoder used in CD3M/520 to decode information from
5 line to 32 line form, with facility to store the input
information.
CHl/63,
coding
1,
3,
14.
DD 1972.
DDTM 2.404. OBSOLESCENT.
CD4 TRANSCODERS
PAL to PAL Transcoder for obtaining a signal with nominal
subcarrier frequency from one having line related
subcarrier frequency without demodulating it. PN3/23 with

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