CHOI0082 CHl/82A,B,D
Chassis. 3u high (5.25") modules for use with PN3/58, in
A, Band D versions, at SCPD's request. Supersedes CHl/12
A-D series chassis. ED 1980.
CHOI0082 CHl/82J
Chassis.
version.
3U module for use with PN3/58 in 'J' width
Equipment superseded: CHl/12. DD(4) 1986.
CHOI0083 CHl/83
Chassis.
Unequipped chassis originally for use in the
Radio Continuity Studio Desk front panel size 260mm x
150mm. Parent equipment EPI0/18. DD 1980.
CHOI0084 CHl/84A,B
Chassis.
3U BMM Phototype card (Low speed Analogue
version). Similar to 4U version CHl/75 A&B. 'A' version
wire wrapped connections. 'B' version solder connections.
3U unequipped PCB with coding comb and handle. DD 1982.
CHOI0085 CHl/85
Wire Wrap Chassis. Unsupportd 5U BMM Card with large array
of holes on a 0.1" square grid for wire-wrap prototyping.
Includes a +5V 'Ring Main' and distributed decoupling. 5-U
Unsupported Card. DD 1984.
CHOI0086 CHl/86
Chassis. RF Chassis to fit PN3/54, consisting of front and
back aluminium alloy panels separated by lengths of
aluminium alloy extrusion with two side screens. Option
for gasket between housed PCB and extrusion to provide low
impedance earth connection. H = 178 mm W = 31.6 mm. DD
1984.
CHOI0086 CHl/86A
Chassis.
As CHl/86K Chassis, but with a 'BMM' 'A' width
front panel. H = 178 W = 52.85. DD(5) 1986.
CHl/86K Chassis. RF Chassis to fit PN3/54, consisting of front and
back aluminium alloy extruded panels separated by lengths
of aluminium alloy extrusion with two side screens. Gasket
seals on front and rear panels to reduce RFI Gasket
material between housed PCB and extrusion to provide low
impedance earth connection. H = 178 W = 31.6mm. CHl/86.
DD(5) 1985.
CHOI0087 CHl/87A
Digital Video Wire-Wrap Chassis.
This is an equipped pcb
for wire-wrap prototyping, mainly for digital video. It
incorporates standard power and clock pin allocations as
per DDTM 1.184(84), and provides a fully-gridded component-
side ground plane, uncommitted power distribution,
circumferential 0.1 inch grid area, and accommodation for
about eighty 14 or 16 pin DIL IC' s. 4U BMM unsupported
card with 2 x 56 way edge-connectors. D&ED (V) 1987.
CHl/87B Digital Video Wire-Wrap Chassis. As for CHl/87A, but
including delayed start and !12V circuitry, also -5.2V and
balanced clock-input circuitry. D&ED (V) 1987.
CHl/87C Digital Video Wire-Wrap Chassis. As for CHl/87B, but
including wire-wrap pins fitted to the edge connector.
D&ED (V) 1987.
CHOI0088 CHl/88 & A-D Sound Control Desk Chassis. Chassis used on radio
continuity suites. Based on the CHl/77 series, this unit
is a half-width chassis 130 mm wide x 225 mm high x 300 mm
deep. The only ones so far produced include 3 U card
frames.
CHl/88 Basic chassis
49

49