AM16/50l
AM17/50l
AM17/502
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AMI 6
circuits with edge contacts to mate with 24 way connector.
Superseded by AM16/l8. DD 1973. OBSOLESCENT.
Time Code Reproducing Amplifier, used to
time code signals from a tape relay head.
accept signals from tapes running at a
speeds. PCB l27mm x 64mm. DD 1972.
DDHB 7.192. EDI 10140(1)OCT72. OBSOLESCENT.
amplify SMPTE
Designed to
wide range of
DDMI 7.265.
AM17 SERVO AMPLIFIERS
Part of equipment for transferring programmes recorded on
synchronised magentic tape on to magnetic film.
Amplifies, clips and shapes sync signals of about 50c/s
frequency. Mains operated. 483mm x l33mm panel. Input:
-95dB from sync track head. Output: +8dB into 100kn input
of power amplifier. Valves: 2 CV290l, CV455. TVX.7.
DD 1958. DD Spec 1.28. ACO. OBSOLESCENT.
Servo Limiter Amplifier used in equipment for transferring
programmes recorded on synchronised magnetic tape to
magnetic film. Amplifies, clips and shapes waveform of
synchronising sinals of nominal 50Hz frequency. CHl/18C.
DD 1967. ACO. OBSOLESCENT.
=========================================================================
AM17 Sub Group not available for new designs DD 1977.
AM18/50l
AM18/502
AM18/502A
AM18/503
AM18 STABILISING AMPLIFIERS
Used after MX8/501 and MX2/50l to produce standard level
syncs. CH3/l chassis. CVX.9. DD 1959. DD Spec 8.44.
DDHB 8.77. TI.TVX.9. OBSOLESCENT.
Used for reducing linear low-frequency distortion and
interference on video signals. Chassis CH3/lH. Inputs:
(a) composite waveforms with picture amplitude of 0.7V
t3dB peak-to-peak. (b) mixed syncs if required 2V t6dB
peak-to-peak. Output: -15dB on IV peak-to-peak of
composite waveform. Valves: 4 E180F, 9 E88CC, 3 CV5112.
DD 1959. DD Spec 6.78. DDHB 6.31. OBSOLESCENT.
Modified AM18/502 to permit
signals of 405 or 625 C.C.I.R.
U.K. 625-line colour standard.
operation on
standard and
WITHDRAWN.
monochrome
on proposed
Synchronising Pulse Stabilising Amplifier. Part of OB
Mixer MXl/50l. Accepts output of two cut/fade amplifiers.
AMl/504 or output of split-screen effects unit UN4/40l and
produces an output signal with correct sync pulses.

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