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~1
CH1/46B. Pegs 25, 44.
OBSOLESCENT.
DD 1967.
DD Spec 9.92.
ACO.
~1/568
Temperature Control Amplifier used to maintain outgoing
cables from PA7/506 at a constant temperature. Modified
commercial power amplifier, 305mm x 178mm x 76mm.
DD 1967. WITHDRAWN.
AMl/569
Clock Pulse Amplifier used in Field Store Standards
Converter to amplify output of C02/535 and field re-set
pulse. CH1/12A. DD 1967. WITHDRAWN.
AM1/570
Video Amplifier with adding and delay circuits as part of
a burst stabi1isation system. Used in AM18/513B. CH1/43.
Pegs 12, 3. DD 1967. DD Spec 8.269. ACO. OBSOLESCENT.
~1/571
Pulse Buffer Amplifier used with UN14/504. Contains 8 7dB
pulse buffer amplifiers to compensate for losses in the
delay lines and give standard level outputs at 75~. Power
required: +18V d.c. at 180mA. CH1/43A. Pegs 1, 2, 3.
DD 1967. DD Spec 8.294. ACO. OBSOLESCENT.
AMl/572
AGC Amplifier used
UN20/515. CH1/12A.
in C06/504 in conjunction
DD 1968. WITHDRAWN.
with
AM1/573
Head Amplifier for 1 and 2 signals. Associated with
PA1/514B. Includes two AM1/533 printed boards and is
similar in construction to AM1/533 but with copper tube
41mm diameter x 152mm long. DD 1968. WITHDRAWN.
AM1/574
Chrominance AGC Amplifier used in AGC system for C06/504
to correct a field by field variation in chrominance
level. Associated with UN1/583. CH1/12A. DD 1968.
WITHDRAWN.
AM1/575
Video Head Amplifier to replace the original valve
head-amplifier in the Cinte1 Colour Slide Scanner. PCB in
Eddystone box. DD 1968. DD Spec 8.318. DDTM 8.266.
OBSOLESCENT.
~1/576
Discriminator Drive Amplifier, electrically as UN15/501.
Used in UN15/503. PCB 117mm x 3Omm. DD 1969.
DD Spec 4.56. ACO. OBSOLESCENT.
AM1/577
Power Amplifier used in EP1/519 to drive line
of te1ecine scan chassis from output of
processor. CH1/12A. DD 1969. WITHDRAWN.
scan shift
Cinemascope
AM1/579
Video Processing Amplifier. Inputs: 1V p-p video in 75~,
2V p-p mixed blanking in 75~. Outputs: A blanked 1V p-p
video signal, composite or non-composite, as required,
into 75~. First used Research Department. Advanced Field
Store
Standards
Converter.
CH1/12A.
Pegs
45,
50.
DD 1969/70. WITHDRAWN.
AM1/580
Delay Line Input Amplifier with a nominal input level of
0.5V p-p, maximum gain 26dB, 3dB bandwidth from 20MHz.
Includes preset 75~ input attenuator. First used Research

11