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C04
625 line output pulses from the GE5M/50l to the 405 line
incoming information. PN3/23 with UN17/5l0, UN17/5ll,
AM4/506A, PS2/2lB. DD 1964. DD Spec 10.9. OBSOLETE.
C04/505
Picture Sync Pulse Converter used in EP14M/504 to produce
a composite output from separate inputs of video, sync,
and blanking signals. CHl/12A. DD 1970. WITHDRAWN.
C04/506
Natlock ICE Transmit Pulse Converter, to receive Natlock
error signals FI, AI, RI and Cl at -6V and convert them to
three
0/+5V
signals
to feed ICE transmitter.
Requires
supply
of
a.c.
mains.
CHl/12A.
DD 1972.
DDMI 1.128(73). OBSOLESCENT.
C04/507
ICE Natlock receive pulse converter to receive pulses from
ICE receiver, check against address code and if correct
deliver Natlock FI, AI, RI, Cl error signals at 0/-6V.
Requires
supply
of
a.c.
mains.
CHl/26B.
DD 1972.
DDMI 1.129(73). OBSOLESCENT.
C05 VOLTAGE LEVEL CONVERTERS
(Sub Group previously defined as "Signal Converters" DD 1977).
C05/l
Used on Greenwich Time Signal System to convert from
single current to double current. (+ and -). Superseded
by GEl/16. DD 1958. DD Spec 2.120. OBSOLESCENT.
C05/3
Stereo Signal Converter, used to derive a time division
multiplexed signal from left hand and right hand stereo
signals. Used with pairs of limiters to provide stereo
limiting. Requires 24V d.c. CHl/18C, peg numbers 49, 75.
DD 1972.
DDMI 3.555.
DDTM 3.127.
EDI 10156(1)OCT72.
OBSOLESCENT.
C05/4
Logic Signal Converter, to convert a logic signal to a t4V
output suitable for driving telegraph equipment. It is an
optional sub-unit in the EP15M/6-7 Switching Equipment.
Requires t5V supplies. CH1/63. DD 1965. OBSOLESCENT.
C06 TELEVISION STANDARDS CONVERTERS
C06/50l
Line Store Standards Converter. Converts 625 line video
signal to 405 line video signal. Fully transistorised.
Comprises cabinet with PAl/5l4, PAl/5l4, PAl/5l6, PAl/5l7,
PAl/5l8A, PAl/5l8B, JF3/504, C04/503, PAl/38, AMl/533,
PA7/503, PA18/5ll. 2.l3m x 1.22m x O.6lm. DD 1963.
DD Spec 7.38. DDHB 7.67, 7.74, 7.91. ACO. OBSOLESCENT.

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