7682

The viewing screen requires

5

The viewing screen requires 5 kilovolts and the

speed of

7682

speed of 400,000 inches per second. The 7682 has a

storage time of

30

storage time of 30 seconds which permits storage and

e e e . Qverall Grids

3000

.. e e e . Qverall Grids 28 4Voltagod . . . ..o v vi v en o 3000 mox. VYolts

Cathede. ... o i iv i vt eiannaas Coated Unipatontial Grid

2000

Cathede. ... o i iv i vt eiannaas Coated Unipatontial Grid 3 Voltags (Foews) . . .. o v i v v v v e 2000 max. VYolts

Current . . . v v v v v v

1

Current . . . v v v v v v ... 050 0.0 0.70 Amperes Grid 1 Yoltage:

FocusingMethod . . . .. . v i v vv e oo Electrostatic Negative Bias Value

200

FocusingMethod . . . .. . v i v vv e oo Electrostatic Negative Bias Value . . .. ......... 200 mox. Volts

Flood Gun: Positive Peak Yolue. . . .. .. e

2

Flood Gun: Positive Peak Yolue. . . .. .. e 2 max. Volts

Heater: Min. Bogey Mox. Respect to Flood Gun Cathade

2800

Heater: Min. Bogey Mox. Respect to Flood Gun Cathade . . ... .. 2800 max. Volts

Voltage o . v v v it i v i e e s

6.93

Voltage o . v v v it i v i e e s 5.67 6.3 6.93 Yolts Voltaga Between any Deflaction Electrode

Curmant . . oo v i v i

4

Curmant . . oo v i v i 050 0.0 0.70 Ampere and Grids 2 & 4: ¢

Warm-up Tima bafore Applying Positive or Negative Paak Value

500

Warm-up Tima bafore Applying Positive or Negative Paak Value. . . ... 500 mox. Volts

High Voltages

30

High Voltages. ... ... . 30 -- - - Seconds Peak Haater-Cathede Voltage:

Writing Gun Grid

8

Writing Gun Grid 1 to All Internal Elements. . . .. 8 mox. upf {Reference Valtage is Flood Gun Cathode)

Defloction Eloctrode

5000

Defloction Eloctrode 1 to All Internal Eloments . . 8 max. upf Yiow Screen Yoltage, . .. . . ... ou . 5000 mox. Volis

Defloction Eloctrode

35

Defloction Eloctrode 2 to All Internal Elements . . 8 masx. uuf Grid 5 Voltage {Backing Electrods) . . . . . 35 moax. Volts

Deflection Elactrode

300

Deflection Elactrode 3 to Alb Internal Elements . . B max. puf Grid 4 Yoltage (Collector Electrode) . . . . 300 mox., Volts

Deflaction Electrode

200

Deflaction Electrode 4 to All Intemal Elements . . 8 max. ppuf Grid 3 Voltage (Collimating Electrode}. .. 200 mox. Volts

Grid

200

Grid 2 Voltoge {Accaloroting Electrode}s . 200 max. Volts

OPTICAL: Grid

1

OPTICAL: Grid 1 Voltage:

Phosphor: Nagative Bias Value. . ... v v i o v v vt

150

Phosphor: Nagative Bias Value. . ... v v i o v v vt 150 max. Volts

Positive Bias VYalue., . . .. ... e

0

Positive Bias VYalue., . . .. ... e 0 mox. Volts

Minimum Usoful Yiewing Diometer

16

Minimum Usoful Yiewing Diometer. . . . . ... . .. ... 3-15/16° LIMITING CIRCUIT VALUES:

BaS®. . « e o v aurnean

0.1

BaS®. . « e o v aurnean 14 Pin Small Diheptal (JEDEC B14-45} Electrode Circuit® .. ...... e 0.1 mox. Megohm

Operoting. « « « v o v vt e a e =

71

Operoting. « « « v o v vt e a e =35 to +71 °C

Neon-Operating. . . . .. ... vt ve-re. =

485

Neon-Operating. . . . .. ... vt ve-re. =621to 485 °C

second with a total excursion of

30

second with a total excursion of 0,30 inches and

Note: Damoge to the

200

Note: Damoge to the 7682 may occur if the Write-Gun beam is turned {Collecting Electrode) . .... 150 to 300 200 Volts

on before the Flood-Gun-beam current has reached normal Grid

3

on before the Flood-Gun-beam current has reached normal Grid 3 Voltage

Grids

2

Grids 28 4 Voltaged . . . . ... ... ... 90 1o 110 Yolts Grid § Current {Backing Electrode) . . . . . ... 2 jemperes

Grid

1.5

Grid 3 Voltage {Focus) . . ... .. ... —2000 to 2300 Volts Grid 4 Current (Cotlector Electrode) . . .... 1.5 Ma,

Grid

200

Grid 1 Voltage to Writing Grid 3 Current (Collimating Electrode) . .... 200 pamperes

Coiihoda Voltage . . .vvve vt

4

Coiihoda Voltage . . .vvve vt -2400 Volts Grids 2 & 4 of the Write Gun are intemally connected together

Deflection Electrodes

4

Deflection Electrodes 1 and 2¢. . ... ... 7210 88V dc/In. cathode to Grids 2 & 4 Voltage.

Grid

5

Grid 5 Voltage in each deflection

{Bocking Electrode) . . . . . .,

10

{Bocking Electrode) . . . . . ., 240 15 10 Volts slectrode circuit

EWK=

0

EWK=0 Volts . N

EWG

2500

EWG2Z, 4= 2500 Volts nw gsi

Grid {

1

Grid {1 Bios Volts

Viewing Tima . .. v v v v v e v v e v a

30

Viewing Tima . .. v v v v v e v v e v a0 30 Seconds

Erasing Time (Flood Gun Erasure) |, .,

50

Erasing Time (Flood Gun Erasure) |, ., 50 Milliseconds

Writing Speed . . . .. .. ... . ...,

400000

Writing Speed . . . .. .. ... . ..., .. 400,000 Inches/Second the lines approach the merging condition, the control

Holf Tones. . . ... ............,,

4

Holf Tones. . . ... ............,, 4 grid pulse ampliwde is adjusted to give a written raster

GridDrive . ... ..ot

30

GridDrive . ... ..ot 30 Volts

brightness without the application of a writing signal ness) is adjusted to

2

brightness without the application of a writing signal ness) is adjusted to 2 seconds. The ratio of bright-

ness level at the center of the screen to increase to Resolution: A

60

ness level at the center of the screen to increase to Resolution: A 60 cps sawtooth voltage is applied

the backing electrode. The amplitude of this pulse is lines. Trace length shall be adjusted to

3.5

the backing electrode. The amplitude of this pulse is lines. Trace length shall be adjusted to 3.5 inches.

rectangular pulses adjusted from

10

rectangular pulses adjusted from 2 to 10 volts peak to When the specified brightness is achieved and the

peak to produce complete erasure in

50

peak to produce complete erasure in 50 milliseconds. lines cannot be discerned visually, the condition for

duce a scanning speed of

400000

duce a scanning speed of 400,000 inches per second. The resolution in lines per inch is the number of hori-

of adjustable amplitude to Grid

90

of adjustable amplitude to Grid 1 of the writing gun. 90% of satrated brightness with a writing speed of

400,000 inches per second in 1 scan. Note the writing

1

400,000 inches per second in 1 scan. Note the writing

collector electrode or penetrate through the holes of grid

4

collector electrode or penetrate through the holes of grid 1, first and second anodes {(grids 2 & 4) which are

approximately zero potential. It the storage surface is at —

2400

approximately zero potential. It the storage surface is at —2400 volts with respect to the flood-gun cathode.

EWG

2500

EWG2, 4 = 2500 Volts w

BN A TR )

1

BN A TR ) 1°E i t

Grid

1

Grid 1 Bias volts

Note

4000

Note 2: Voltages are with respect to writing gun cathode. Entire supply must be insulated from ground for 4000 velts.

Cy

200

Cy: 0.1 pf, 200 volis Ry4 Ryg: Write Gun Dy & Dy Centering Controls: Duasl

Ca, C

2

Ca, C3, C4, Cq: Value depends on deflection-voltage fre- 1 megohm potentiometers, 2 watts

Cs: Value deperds on signal-vollage frequency and wave

2

Cs: Value deperds on signal-vollage frequency and wave- 1 megohm potentiometers, 2 watts

form,

0.5

form, 4000 volts R].B’ RIQ! R20, R“: 100,000 Ohm, 0.5 watt

Cq, Cg

200000

Cq, Cg: 0.08 uf, 600 volts R,,: Cellector Electrode Control: 200,000-chm potenti-

R,

1

R,: 91,000 chms, 1 watt Rag Rog, Rap: 51,000 ohm 1 watt

Rz, st, R

200000

Rz, st, R2g: 100,000 OhmS, 1 watt Ry Collimating Electrode Control: 200,000-ohm potenti-

Rg

2

Rg. 34. R5. R6= 470,000 ohms, 2 watts ometer, 2 waltls

R,: Write Gun Focus Control

150000

R,: Write Gun Focus Control: 250,000-0hm potentiometer, Ryp: Accelerating Anode Control: 150,000 ohm potenti-

2 watts ometer, 2 watts

2

2 watts ometer, 2 watts

Ra

5

Ra: 180,000 obm, 1 watt R4o: 1 megohm, 5 watts

Rg, RIO'

1

Rg, RIO' 322, R23: lmegohm, 0.5 watt Rgq: 22,000 ohm, 1 watt

R : Backing FElectrode Control

117

R : Backing FElectrode Control: 100,000-ohm potenti- Ty: Filament Transformer: Primary 117 velts, Secondary

ometer,

4000

ometer, 2 watts 6.3 volts @ 1 ampere, Insulated for 4000 volts

Ryp

117

Ryp: 5,000 ohm, 1 watt Ty: Filament Transformer: Primary 117 volts, Secondary

Ryg: Flood Gun Grid

1

Ryg: Flood Gun Grid 1Control: 250,000-chm petentiometer 6.3 volts @ 1 ampere

2 watts ~ Fleod

2

2 watts ~ Fleod

Moximum Seated Length. . . .. P Cee e PR

1

Moximum Seated Length. . . .. P Cee e PR 14-1/4 Limiting Resistance. . . ... ...... , 1.0 min. Megohm

Greatest Shietd Diameter. . . . .. . .o o

5000

Greatest Shietd Diameter. . . . .. . .o o0 v o n - 5-1/4" £ 1/16" Backing Electroda Circuit Resistance .. 5000 mox. Ohms

Collactor Elactroda . . . .. Recessed Small Ball (JEDEC J

1

Collactor Elactroda . . . .. Recessed Small Ball (JEDEC J1-22) Grid t Circuit Resistance . ... ...... 1.0 mox. Megohm

TYPICAL OPERATING CONDITIONS AND CHARACTERISTICS Grid

4

TYPICAL OPERATING CONDITIONS AND CHARACTERISTICS Grid 4 Voltage

Cathode Current ..., ...... See Gun Transter Characteristic For other values of cathode to Grids

4

Cathode Current ..., ...... See Gun Transter Characteristic For other values of cathode to Grids 2 & 4 Voltages, the

Note

1000

Note 3: Ernse Pulse Characteristics, Amplitude: 0to 10 volts peak-to-peak, Width: 2to 10 microseconds, Frequency: Oto 1000 pulses per second.