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DB736

Philips blue short-persistence cathode-ray instrument tube with electrostatic deflection, 6.3 V heater, approximately 68 mm useful scan, and fine-line characteristics for oscillographic display.

Directly heatedCold cathodeCommon cathodeDissimilarSpecialized

Sections: 1
Base: -
Socket code: B12C
Base pins: -
Nominal heater: 6.3 V / 300 mA

Description

The Philips DB736 is a high-sensitivity oscilloscope crt with blue, short persistence.

Socket description

Duodecar 12-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: -
Socket code: B12C
Base pins: -
Nominal heater voltage: 6.3 V
Nominal heater current: 300 mA
Parallel heater voltage: -
Parallel heater current: -
Series capable: No

Terminal pinout

Electrical assignments shared by every tube using this base designation.

No verified pinout is recorded for this base designation.

Section ratings

1 physical section, each with unique specifications.

Section 1

Cathode Ray

X-ray radiationInterelectrode capacitances

Max plate voltage: 1500 V

Electrostatic focusing/deflection CRT section; electrical/screen/deflection data retained in parameter rows.

Source-dependent data

Operating conditions by source

Each block preserves the test conditions and published values from one reference. Values from different sources are intentionally kept separate.

Data set 01

1957 Philips Receiving and Amplifying Tubes

Published operating points and test conditions from this source.

SECTION 1

Cathode Ray

Characteristics

Heater Voltage
6.3 V
Heater Current
300 mA
Phosphor Variant
blue, short persistence text
Screen fluorescence and persistence

Data set 02

1963 Philips Electron Tubes Handbook V2

Published operating points and test conditions from this source.

SECTION 1

Cathode Ray

Characteristic

Heater voltage yç
6.3 V
Heater voltage yç = 6.3 V
Heater current If
300 mA
Heater current If = 0.3 A
Grid No
5.7 pF
Grid No. 1 to all other electrodes Cg1 = 5.7 pF
Cathode to all other electrodes CE
3.3 pF
Cathode to all other electrodes CE = 3.3 pF
LINE WIDTH measured on a circle of
50 mm
LINE WIDTH measured on a circle of 50 mm diameter
Beam current Ij
0.5 uA
Beam current Ij = 0.5 µA
Line width
0.4 mm
Line width = 0.4 mm
Negative grid No
1 V
Negative grid No.1 voltage for
Grid No
1 V
Grid No.1 voltage
cathode Vkf
180 V
cathode Vkf 180 V
Negative grid No
1 V
Negative grid No.1 voltage per kV of
focused spot -Vg
27 to 53 V
focused spot -Vg1 27-53 V V82.44

Other

Deflection factor
24.5 to 30 V
Deflection factor 4x plates Mx = 24.5-30.0 V/cm

Data set 03

1999 Philips 0-D

Published operating points and test conditions from this source.

SECTION 1

Cathode Ray

Characteristic

Chauffage: indirect par C.A. ou C.C. Ve
6.3 V
Published datasheet condition
alimentation parallele If
300 mA
Published datasheet condition
Chauffage: 1nd1rect par C.4. ou C.C. Ve
6.3 V
Published datasheet condition
Heizung: indirekt durch Wechsel-~ Ir
300 mA
Published datasheet condition
Heater voltage Vr
6.3 V
Published datasheet condition
Heater current Ir
300 mA
Published datasheet condition
Grid No. 1 to all other electrodes Cg1
5.7 pF
Published datasheet condition
except yp plate Cy
4.7 pF
Published datasheet condition
y1 plate Cys
4.7 pF
Published datasheet condition
x1 plate to x2 plate Cxy~xp
1.9 PF
Published datasheet condition
Cay = 6,6 £
1 pF
Published datasheet condition
Cay = 6,6 £ 1.0 pF) [ = 2,0
0.3 pF
Published datasheet condition
Ck = 4,0 £ 0,6 pP’ CD,yDot = 2,6 *
0.4 pF
Published datasheet condition
Cpy, = 5.8 £
0.9 pF
Published datasheet condition
Cpy, = 5.8 £ 0,9 pFZ) CDy Di'- D2 D2 = 0,3
0.1 pF
Published datasheet condition
Cpyt = 5.8 £
0.9 pF
Published datasheet condition
Cp, = 6.0 £ 0,9 sz) Ck-D1Di' DeDet = 2,55 &
0.15 pF
Published datasheet condition
Dt = 6,0 £
0.9 pF
Published datasheet condition
Line width ( V(gpiga)
1500 V
Published datasheet condition
Epaisseur de la ligne ( I%Q 54)2 0,5 uh)
0.4 mm
Published datasheet condition
Viga+ge)
1500 V
Published datasheet condition
Vas = 247
397 V
Published datasheet condition
~Vg = 40
-8 V
Published datasheet condition
2,0%
0.3 pF
Published datasheet condition
Ck = 4,0 £
0.6 pF
Published datasheet condition
Ck = 4,0 £ 0,6 pF ) CDa D2' = 2,6 *
0.4 pF
Published datasheet condition
cp, = 5,8 £ 0,9 sz) CD Di'-D2 D2 = 0,3
0.1 pF
Published datasheet condition
Cp,t = 5.8 £
0.9 pF
Published datasheet condition
Cp,t = 5.8 £ 0,9 pF ) Cg.-D: D! D2 D2 0,2 £
0.1 pF
Published datasheet condition
O, = 6.0 £ 0,9 pE°) CiopipytpeDe = 0,35 *
0.15 pF
Published datasheet condition
CDe* = 6,0
0.9 pF
Published datasheet condition
Line width { V(garga)
1500 V
Published datasheet condition
Epaisseur de la ligne ( I(& & = 0,5 uA)
0.4 mm
Published datasheet condition
Betriebsdaten V(gzsgs) R
1500 v
Published datasheet condition
Ves = 247
397 v
Published datasheet condition
—Vg1 = 49
80 v
Published datasheet condition
Cgl = 5.7 DF ) CD2
6 pF
Published datasheet condition
Ck
3.3 pF
Published datasheet condition
Ck = 3,3 pF ') Cpet
6 pF
Published datasheet condition
CD1
4.7 pF
Published datasheet condition
Published value
1.7 pF
Published datasheet condition
CD1'
4.7 pF
Published datasheet condition
CD1'= 4,7 pF ) Cpep2'
1.9 pF
Published datasheet condition
Epaisseur de la ligne
5 V
Published datasheet condition
Epaisseur de la ligne 5V52’54
1500 v
Published datasheet condition
Vg2, g4
1500 v
Published datasheet condition
Ve3 = 247
397 V
Published datasheet condition
~Vg1 = 40
80 V
Published datasheet condition
N1 = 0,49
-0.59 mm
Published datasheet condition
plates and grids No
2 a
Published datasheet condition
LINE WIDTH measured on a circle of
50 mm
Published datasheet condition
Grids No
2 a
Published datasheet condition
Grids No.2 and
4 v
Published datasheet condition
Grids No.2 and 4 voltage Vgs,gq
1500 V
Published datasheet condition
Line width
0.4 mm
Published datasheet condition
will be within a circle of
4 mm
Published datasheet condition
Grids No.2 and 4 voltage Veo,g4
1500 V
Published datasheet condition
Grid No
3 v
Published datasheet condition
Grid No.3 voltage Vgz = 247
-397 v
Published datasheet condition
Negative grid No
1 v
Published datasheet condition
spot -Vgy = 40
-80 V
Published datasheet condition
Deflection factor |¥ PLates lx = 24.5
-30 V
Published datasheet condition
ly plates My = 17.0
-20.5 V
Published datasheet condition
]) For calculation of the grid No
3 v
Published datasheet condition
_5’ = 27
53 V
Published datasheet condition
Fagtour dedevlation (p,n,)= 1,2
20 V
Published datasheet condition
tion plates and grid
2 a
Published datasheet condition

Other

')
57 mm
Published datasheet condition
Nitzlicher Abtastungsvereich (DeDz’)
68 mm
Published datasheet condition
Gamme d'exploration utile (D‘D1:)
57 mm
Published datasheet condition
Useful scan ¥ plates = min.,
68 mm
Published datasheet condition
¥ plates
57 mm
Published datasheet condition
V(gz4ge)
2500 V
Published datasheet condition
V(gzsge)
1000 V
Published datasheet condition
Vg3 = max,
1000 V
Published datasheet condition
—Vg,
200 V
Published datasheet condition
Published value
2 V
Published datasheet condition
Vkr
180 V
Published datasheet condition
W(gasge)
6 W
Published datasheet condition
Rp
5 MΩ
Published datasheet condition
V(gz+gs)
2500 V
Published datasheet condition
V(g2+g4) = min.,
1000 V
Published datasheet condition
Ves
1000 V
Published datasheet condition
—Vg, = max,.,
200 V
Published datasheet condition