AM18
AM18/514A
AM18/515
AMI8/516
AM18/517
AM18/518
AM18/519
AM18/520
AM19/501
AM19/502
AM19/503
AM19/504
AM19L/507
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Modified AM18/514 for use
OBSOLESCENT.
in AMI8/513C.
DD 1968.
As AM18/504 but housed in CH1/13D for portable use on TV
OBs. DD 1965. OBSOLESCENT.
As AM18/509E but housed in CHl/13C for portable use on TV
OBs. DD 1965. OBSOLESCENT.
Provides
contains
EQIM/507.
forward path for feedback clamp
a sync pulse separator to drive
CH1/12A. DD 1965. DD Spec 11.19.
circuit and
AM3/504 on
WITHDRAWN.
Level Stabilising Amplifier for stabilising video levels,
using sync pulses amplitude as reference. Mains operated.
CH1/12B. DD 1966. WITHDRAWN.
Stabilising Amplifier giving constant peak-white to black
amplitude of 0.7V for pre-set range of input signal
amplitude. Comprises GE2/535B, AM1/552, UN1/578, UN1/579,
IN2/502, PS2/13F, with wired rear panel and PN3A/19F.
DD 1966. DD Spec 11.30. DDHB 11.36. ACO. OBSOLESCENT.
Stabilising Amplifier used in AM18/503A with AMl/558.
Electrically as AM18/507 with additional circuits for
burst stabilisation. CH1/43A, pegs 3, 4, 5. DD 1967.
DD Spec 8.276. ACO. OBSOLESCENT.
AM19 NON-LINEAR AMPLIFIERS
Used in te1erecording for pre-correction of subsequent
distortions in the film process. Part of EP4/501.
DD 1958. OBSOLESCENT.
Used in l6mm te1erecording equipment EP4/502 to precorrect
subsequent
distortion
in
film
process.
Output
0.35V
picture positive or negative going with or without sync
into 75~. Plug-in sub-units to vary characteristic.
CH/39F. DD 1959. DDHB 7.30. OBSOLESCENT.
Used in AMI9/504. Consists of 3 units each on CHl/12A.
Unit 1 pegs 4, 21; Unit 2 pegs 8, 20; Unit 3 pegs 8, 22.
DD 1963. DD Spec 7.119. ACO. OBSOLESCENT.
Used on EP6/50l. PN3/23 with AMI9/503 (Units 1, 2, 3),
AMS/507,
PS2/13M.
DD 1964.
DD Spec 7.117.
ACO.
OBSOLETE.
Four-tube Gamma and Matrix Amplifier used between 4-tube
colour sources and colour encoders to prepare the signals
for coding. Requires input of mixed sync pulses and has 4
outputs at 0.7V p-p video. Includes AM19/505, 2 AM19/506,
AM1/548. Mounted on a PN3/23. DD 1966. DD Spec 8.305.

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