- 11 -

~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 WITHDRAWN.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 WITHDRAWN.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 WITHDRAWN.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 WITHDRAWN.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WITHDRAWN.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 WITHDRAWN.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 WITHDRAWN.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