output waveform. CH1/46A, pegs 23,
DD Spec 9.110. OBSOLESCENT.
Horizontal Registration Luminance Unit used in EPlM/520 to
accept the luminance video signal from the camera and
produce 2 differentiated signals to drive UN20/533.
Printed board with 33 way ISEP plug, coding 9, 19, 21.
DD 1969. DD Spec 7.198. OBSOLESCENT.
Vertical Registration Luminance Unit used in EPlM/520 to
process the luminance video signal to give 2
differentiated signals for driving UN20/534. Printed
board with 33 way ISEP plug, coding 9, 11, 31. DD 1969.
DD Spec 7.195. OBSOLESCENT.
UN19 Sub Group not available for new designs. DD 1977.
UN20 DETECTOR UNITS
Unit, Detector, Voice Frequency used with AM1/13.
frequency. CH1/18C. DD 1965. WITHDRAWN.
Digital Detector Unit used to compare two digital signals
and to detect disparity between them. CH1/26B, pegs 18,
23. DD 1965. DD Spec 5.120. ACO. OBSOLESCENT.
Detector Unit used
remote control of
on PAlM/50 as a tuned receiver for the
a radio set. CH1/18E. DD 1965.
Tone Detector Unit (2100c/s) used in PAlM/51.
DD 1965. WITHDRAWN.
As UN20/4 but for 10.5kHz. DD 1970. WITHDRAWN.
Input Change Detector Unit which accepts to 6 inputs from
transmitter monitoring equipment and produ,es a d.c.
output signal when any input changes state. This output
signal is normally fed to UN14/4. Printed board.
DD 1966. DD Spec 2.266. ACO. OBSOLESCENT.
Telephone Ringing Detector Unit. Comprises two small reed
ra1ays and associated components mounted on a 95.3mm x
51mm printed board attached to the rear of a miniature
lever key. 51mm x 19mm x 140mm. SCPD 1967. OBSOLESCENT.
FM Translator Detector Unit
stations with EP7/1X. DD 1967.
used a t low
Tone Detector Unit used in PAlM/57 to operate a relay on
receipt of two tones of 167.9Hz and 186.2Hz. CH1/18C,
pegs 12, 43. DD 1967. WITHDRAWN.