Teletext Decoder Control Unit. Remote control keypad for
Teletext Decoder CD3/532. Incorporates signal processing
to enable keypad functions to be coded into serial form
pulses. Powered by current fed down the lead from the
CD3/532. Mounted in small diecast box. DD 1977.
Genlock Control Unit. This unit will enable drive units
GE6/535 and GE5L/508 to have their outputs made
synchronous to a video sourcet with the ability to offset
the output pulse timing ad subcarrier phase. Power
1.246(80). DDHB 1.168(82). EDI 10473 (1) JUN 83.
Generator Control Unit. Forms part of GE7L/ 501;
Generator t and contains thumbwheels t display and
switches on front panel. Halfcard 12V power
PS2/186At supplies power to rest of generators as
the UN3/575. Power requirements 240V a.c. mains.
DD 1978. DDMI7.416(79). EDI 10473(1)JUN 83.
conjunction with Joysticks or control switches to
for TARIFTWO EP6L/509.
from TARIFTWO. Power requirements +12V t -12V at
Printed circuit board 150mmx 68mm. Supersedes
(not direct replacement). DD 1978. DDMI 7.419(79)
Fader Interface. Two channel fader interface for driving
the Linear Split Screen Switch SE3/511. Each channel
contains a curve bender to BBC spec't and has a Cut
facility. External logic can also turn either or both
channels hard ON or OFF. Power requirements +12V t -12V t
+5V (from SE3/511). CH1/64J. DD 1982. DDHB 8.395(83).
Telephone Effects Unit. This unit provides full telephone
effects for up to 8 phones. Any 2 phones may be
interconnected (and conversation held between them) by a
simulated phone call and full tone effects are provided.
The tones and ringing signal may be those used in the U.K't
the Continent orNorth America. The unit it portable and
fits into an Imhof case (Type 1280B) 406mm x 229 x 191mm.
Voiceover Effects Unit. This unit accepts input programme
at -20dBt -10dB or OdB volume (selected on rear connector)
and passes it through an amplifier whose gain may be
reduced in respnse to a second 'voiceover'contribution are
not however mixed within the unit. This unit is a BMM
3.640.(77). DDHB 3.203(77). EDI 10327(P)OCT77.
1: 1 Direct Injection Box. Box contains input and output
socket (XLR in and out) and special safety transformer t
LL256SP to provide interface from commercial to BBC
equipment. Voltage ratio
150 mm x 80 mm x 50 mm Box. Sub-units LL256SP transformer.
DD 1981. DDMI 3.708. EDI 10453(1)JUL 82.