DEC DECtape 551 Manual page 77

3
'-i
2
'4
PA
h::
o
2
+3
DE
-4
CAPACITOR -DIODE GATE, POSITIVE OR NEGATIVE
INDICATED BY POLARITY OF THE INPUTS.
t.
PULSE INPUT
2. CONDITIONING LEVEL INPUT
3. PULSE OUTPUT
PULSE INVERTER
PULSE AMPLIFIER
t.
PULSE INPUT, POLARITY INDICATED
BY INPUT SIGNAL
2,3. TRANSFORMER - COUPLED PULSE
OUTPUT
FLIP-FLOP (MOST FLIP-FLOPS HAVE ONLY SOME
OF THE FOLLOWING):
I. DIRECT-CLEAR INPUT
2. GATED~LEAR INPUT
3. DIRECT-SET INPUT
4. GATED-SET INPUT
~.
COMPLEMENT INPUT
6. OUTPUT LEVEL,-3V IFO,OV IF t
7. OUTPUT LEVEL, 0 V IF 0, -3 V IF t
8. CARRY PULSE OUTPUT
DELAY (ONE -SHOT MULTIVIBRATOR)
I. INPUT PULSE
2. OUTPUT LEVEL,-3V DURING DELAY
3,4. TRANSFORMER-COUPLED PULSE
OUTPUT
Figure A 1-1 Circuit Symbols {continued}
A 1-4