PAl 7
- 282 -
Spec 3.261. OBSOLESCENT.
PA17/82
Channel
DK4/4.
Telephone Relays for two channels
1959. DD Spec 3.262. OBSOLESCENT.
of DK4/3
and
PA17/83
Monitoring Relays for
for 35 monitoring
OBSOLESCENT.
DK4/4 in conjunction with RLP/19A
points.
1959.
DD Spec 3.263.
PA17/84
Cue Programme, Clean Feed and PFL Relays used with tenth
channel of DK4/3 and DK4/4 and mixer pre-fade circuits for
10 desk channels. 1959. DD Spec 3.264. OBSOLESCENT.
PA17/85
Cue Programme and Clean Feed relays for three channels of
DK4/3 and DK4/4. 1959. DD Spec 3.265. OBSOLESCENT.
PA17/86
Signalling and amplifier switching relays used with Mixer
Suite EP5/4 on BA2/8. 1959. DD Spec 3.274. OBSOLESCENT.
PA17/87
Mixer monitoring and talkback relays used with EP5/4 on
BA2/8. 1959. DD Spec 3.269. OBSOLESCENT.
PA17/88
Monitoring Relays for DK3/l7.
one at a time to one output.
OBSOLESCENT.
Selects up to 18 sources
1959. DD Spec 3.275.
PA17/89
Signal Storage relays used at sending and receiving ends
on voice frequency switching scheme. 1959.
DD Spec 2.141. OBSOLESCENT.
PA17/90
Auxiliary Relay Panel used at Towyn on Penmon-Towyn Remote
Control System. 1959. OBSOLESCENT.
PA17/91
Fuse Alarm Relays used with
DD Spec 3.267. OBSOLESCENT.
DK3/13.
DD 1959.
PA17/92
Switchboard Response Relays used at sending end on voice
frequency
switching
scheme.
1959.
DD Spec 2.135.
OBSOLESCENT.
PA17/93
Route Telephone Relays used with DK4/3.
DD Spec 3.266. OBSOLESCENT.
1959.
PA17/94
Ringing Supply Failure Alarm Relays and C/O.
Spec 3.268. OBSOLESCENT.
1959.
DD
PA17/95
T.O. Monitoring Relays. Similar to RLP/19A but on hinged
chassis CH1/10. DD 1960. DD Spec 3.289. OBSOLESCENT.
PA17/96
Programme and Transmitter switching relay panel used at
Brighton. 1960. OBSOLESCENT.
PA17/97
Source Signalling Relays for EP5/4. 1961. DD Spec 3.305.
OBSOLESCENT.
PA17/98
PA17/99
Used at Me1drum. 1961. OBSOLESCENT.
Used at North Hessary Tor and Rowridge.
1961.

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