C02/5l0
C02/5ll
C02/5l2
C02M/5l3
C02M/5l4
C02M/5l5
C02/5l8
C02/5l9
C02/520
C02/52l
- 79 -
C02
10 UNl/535,
WITHDRAWN.
AMl/522, AM4/5l6A.
DD 1961/63.
ACO.
Frequency Converter used in MDl/502. Consists of two
binary divider chains one of which accepts an FM output
from MD3/50l, and the other from a frequency stable
source, and the feeds output to UN15/50l. CHl/26.
Includes 10 UNl/535, 2 AMl/522. DD 1964. DD Spec 4.25.
ACO. OBSOLESCENT.
Frequency Converter (Sound) used in EP7/505, EP7/506 to
convert the output of AMl/538 to the required output
channel frequency at a level to drive the sound output
amplifier.
Replaced
by
C02/5l9
in
new
equipment.
DD 1964. DD Spec 12.1 DDTM 12.3. OBSOLESCENT.
Frequency Converter (Vision) used in EP7/505, EP7/506 to
convert the output of AMl/539 to the required output
channel frequency at a level to drive the vision output
amplifier. Replaced by C02/520 in new equipment.
DD 1964. DD Spec 12.1. DDTM 12.3. OBSOLESCENT.
Binary Counting Frequency Converter used to modify GEl/504
to produce simultaneous NTSC and PAL type sub-carriers.
CHl/12A with 6 UNl/535 Binary Units. DD 1965. WITHDRAWN.
Binary Counting Frequency Converter used to modify GEl/504
to produce simultaneous NTSC and PAL type sub-carriers.
CHl/12A with '4 UNl/535 and UNl/534 Feedback Unit.
DD 1965. WITHDRAWN.
Binary Counting Frequency Converter used in OS5M/50l.
Provides a fixed division ratio of 72 and a division ratio
of 865 variable to 859 or 871. CHl/26A with 17 UN9/S28.
DD 1965. WITHDRAWN.
Control Track Converter for producing a locked 250 c/s
output from a control track signal of 62.5 c.s. from a
slow-running Ampex tape recorder. It also recovers edit
pulses from the tape signal. CHl/12A. DD 1966.
WITHDRAWN.
Converter, Frequency, Sound, used in EP7/S0S-S07 to
convert the modulated audio signal from IF to any Band I
channel. Gain: lOdB. Requires external oscillator.
Printed circuit board 89mm x l52mm. Replaces C02/5ll in
new equipment. DD 1966. OBSOLESCENT.
Converter, Frequency, Vision. Similar
vision signal. Replaces C02/Sl2 in
DD 1966. OBSOLESCENT.
to C02/Sl9 but for
new equipment.
Colour Sub-Carrier Frequency Converter used in conjunction
with one or more C02/S22 to provide feeds of colour
sub-carrier of adjustable phase for use by colour
equipment. Provides output frequency at 15/16 of input
sub-carrier frequency. Includes MD2/504, 4 UN9/528.
CHl/12A, pegs 7, 32. First used EPlL/509. DD 1966.

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