B&K 1076, Instruction Manual

Page: 43 / 64

All harmonics above Channel 6 will be absorbed by the filt.er, thus eliminating
the high-band int.erference. Likewise, if the generator is set for a channel
above Channel 6 and int.erference occurs at Channel 6 or below, use the filt.er
and take the output from the high-band (Channels 7 through 13) t.erminals.
5.
Using the Television Analyst
tlJl
a Video System Transmitter
Operat.e the Television Analyst as directed under "Displaying Your Own
Pictures." Writ.e or type the names of the persons being paged on a trans­
parent piece of acetat.e. To type on the acetat.e, shift the lever on your type­
writer to position where ribbon is not used. Take 2 pieces of good quality
carbon paper and insert acetat.e between them so carbon surfaces are against
the front and back of acetat.e. Put in typewrit.er and type message in area
3-by4-inches. The clear slide provided has this area marked off. The ace­
tat.e may be used again by just wiping the carbon printing off.
THEORY OF OPERATION
The Television Analyst is a complet.e flying spot scanner Video Signal
Generator coupled with a radio frequency transmitt.er. For the reader's con-
tlZA"t7
MODULATED
R.F.OUTPUT
-�--
6 AN B 6ANB
V-Z A
-------llsr.VIOE01--..,...;­
AMP.
12AU7
V-3B
VIDEO
PHASE
INVERTER
V-68 V-6A
4.5 MC t--_..-----tREACTANCE
OSCILATOR TUBE
V-1
931A
Tl2AU7
V-3A
SYNC.
PHASE
t6DE7
V-BA
VERT.
osc.
+12AT7
V-28
SYNC.
MIXER
+son
V-88
VERT.
OUTPUT
CG 6DQ6
V-9A V-10
V-98 ,-.---1 HORIZ.
HORIZ.
OUTPUT
osc.
"T12AT7
V-4B
COLO R
osc.
6DQ6
V-11
PLATE
DRIVE
IXZ
V-13
HIGH
VOLT.
REC T.
Figure 26-,..Bloct diagram of TV Analyst
41
yl2AX7
V-7A
AUDIO
PREAMR
6CB6
V-5
R.f.-LF.
osc.
,l.cAX7
V-7B
TONE
GENERATOR
26CA 4
V-15
B+- LOW VOLT.
RECTIFIER
-150V
-150
RECTI FI ER
VOLTS-