CHl/50A-C
CHl/51A,5lB
CHI/52
CHl/53A,53B
CHI/54
CHI/56
CHl/57A
CHl/57B
CHl/60A
CHl/60B
CHl/6l
CHl/63
CHl/66
CHl/67
73 -
CHl
Reed Relay Chassis for mounting 1, 2 or
respectively. Flat rectangular ISEP, rail
plugging mounted units into PN3/49A, PN3/49B
DD 1968. OBSOLESCENT.
3 UN2l/5A-M
chassis for
or PN3/49C.
Similar to CHl/18C, CHl/18E with provision for a second
printed board on a hinged side. DD 1968. DD Spec 2.289.
OBSOLESCENT.
Relay Chassis
STC type 25.
double 33 way
OBSOLESCENT.
used on EP5/509 to hold 12 relays similar to
Similar construction to CHl/43A but with
ISEP connectors. DD 1968. DD Spec 8.329.
Sound Control Chassis similar in construction to CHl/37
but with height of 229mm. Used where the 406mm height of
CHl/35 is unacceptable. Used with ISEP connectors. 229mm
x 572mm x 235mm deep; B = 229mm x l14mm x 235mm. DD 1969.
DD Spec 3.532. OBSOLESCENT.
Filter Chassis for mounting filters on PAl/26, PAl/27.
DD 1969. DD Spec 2.304. OBSOLESCENT.
Directional Coupler Chassis to house
coupler printed boards. Box formed of
together and drilled to suit 4 'c'
DD 1970. WITHDRAWN.
UHF directional
2 channels bolted
type connectors.
UHF Chassis used in place of CHl/48, CHl/49 to house UHF
amplifiers in active deflectors and transposers. Made of
cast aluminium. DD 1970. OBSOLESCENT.
UHF Chassis to house control units used in active
deflectors and translators. Case aluminium box with sheet
aluminium lid. DD 1971. OBSOLESCENT.
DD 1971. CANCELLED.
DD 1971. CANCELLED.
RF Chassis, screened to house printed wiring board, etc.
Fits special Imhof CDX panel; dimensions: l78mm x 46mm
approx. DD 1971. OBSOLESCENT.
Chassis, of 27mm nominal width, for use in PN3/23 to
accommodate printed wiring boards with 42 way edge
connector to mate with 42 way "greenline" socket. Similar
basic design to CH1/43. DD 1972. OBSOLESCENT.
Chassis, used for AMl/594-6 series of amplifiers,
providing a screened box with built in heat-sink for a
single stripline package transistor. Made from aluminium
strip and extruded heat sink, 190mm x l08mm x 41mm.
DD 1972. OBSOLESCENT.
Chassis, used for AM1/545, AMl/547 and AMl/549 series of
amplifiers, providing a screened box with built in head
sinks for three stripline package transistors. Made from

73