main operating suite. Provides lamps and keys for 60
subscribers and 225 twin monitoring points. Comprises
CT3/2 with 5 panels 243A, 234F, 246C, 2 PA8/llA, PA8/26C,
PA8/26D, PA8/47B, PA8/68A, PA8/74A, PA8/l09A, 2 UN10/3.
Broadcasting House Extension. DD 1958. DD Spec 3.187.
Miscellaneous Switching and Monitoring Desk for 180
monitoring points and 150 source/route circuits. Includes
CT/49 with 9 panels 243A, PA8/7A, PA8/7B. Broadcasting
House Extension. DD 1958. DD Spec 3.188. OBSOLESCENT.
EMX and Monitoring Desk (RH) for 100 EMX subscribers and
270 monitoring circuits with a further 180 on adjoining
DK3/10. Used with 2 BA9/3 for EMX purposed and 3 BA7/2
for monitoring. Comprises CT/49 with 3 panels 240, 6
243A, 3 PAS/llA, PAS/10C, PAS/26B, PAS/47A, UN10/3.
Broadcasting House Extension. DD 1958. DD Spec 3.1S9.
DDHB 3.3S. OBSOLESCENT.
EMX and Monitoring Desk (LH) similar to DK3/ll and
installed alongside it. Adjoining DK3/l3 provides a
further lSO monitoring circuits. DD 1958. DD Spec 3.190.
DDHB 3.38. OBSOLESCENT.
Miscellaneous and Monitoring Desk for 180 twin monitoring
points and 25 intercom points. Installed alongside DK3/l2
and used with it and DK3/9, DK3/l0, DK3/ll to form main
operating suite. Comprises CT3/2 with 4 panels 240, 234F,
DD 1958. DD Spec 3.191. OBSOLESCENT.
Sound OB Desk used with DK3/7. Comprises CT/49 with
JF2/l, PN3/4 (with ASN/4 and FHP/3A), TS/10, ATM/l, AT/30,
PA8/50A. DD 1958. WITHDRAWN.
Television Sound OB Desk used with DK3/6. Comprises CT3/2
with INl/2, UN10/3, Panel 233C, 3 243A, 246C, PA8/llA,
PAS/llB, 3 PAS/25A, PAS/26A, PAS/46A, PA8/5lA. DD 1958.
Despatch Position Desk for handling engineering side of
work involved in the reception and recording of news
despatches. CT3/2A with PAS/7A, PA8/7B, PAS/8lA, PA8/81B,
PA8/8lD, PA8/8lE, PA8/82A, PA8/82B, PA8/84A, PA8/85A,
DD 1959. DD Spec 3.247. OBSOLESCENT.
Technical Operations Manager's Desk for monitoring outputs
of 5 main operating positions, check receivers etc. CT/52
with PA8/88A, PA8/89A, PA8/90A, PA8/9lA, PA8/92A, PA8/92B,
PA8/93A, PAS/96A, PA8/98A, PA8/99, PAS/40A, Panel 107K,
BX5/S, PB5/9. First used Broadcasting House Extension.
DD 1959. DD Spec 3.250. OBSOLESCENT.
Assistant Technical Operations Manager's Desk. Similar to
DD Spec 3.250.