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Voltage - Triode (with diode, heptode or hexode) ·Heptode-Triode

HCH81

Radio receiver frequency changer combining oscillator and mixer functions for superheterodyne conversion. Its multi-grid construction translates incoming RF signals to the intermediate frequency within the receiver front end.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
2
Base
-
Socket code
B9A
Base pins
9
Nominal heater
12.6 V / 150 mA

Description

Triode-heptode frequency-converter tube for radio receivers. Electrical ratings, heater data, operating limits, and published characteristics are captured from the supplied datasheet.

Socket description

Small-button Noval 9-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
-
Socket code
B9A
Base pins
9
Nominal heater voltage
12.6 V
Nominal heater current
150 mA
Parallel heater voltage
-
Parallel heater current
-
Series capable
Yes

Terminal pinout

Electrical assignments shared by every tube using this base designation.

No verified pinout is recorded for this base designation.

Section ratings

2 physical sections, each with unique specifications.

Section 1

Triode

X-ray radiationInterelectrode capacitances
Transconductance
0.0037 S
Amplification factor
22
Max plate voltage
250 V
Max plate dissipation
0.8 W
Max cathode current
6.5 mA

Published ratings/characteristics are also preserved as parameter rows. Philips HCH81 oscillator triode of a triode-heptode AM/FM frequency changer. At Va 100 V, Vg 0 V, Ia 13.5 mA the published typical gm is 3.7 mA/V and mu 22. Maximum continuous anode 250 V, dissipation 0.8 W, cathode current 6.5 mA; 550 V is cold-anode withstand only. The 12.6 V, 150 mA heater can be supplied in series or parallel circuits.

Section 2

Heptode

X-ray radiationInterelectrode capacitances
Plate resistance
1000000 Ω
Max plate voltage
250 V
Max screen voltage
125 V
Max plate dissipation
1.7 W
Max screen dissipation
1 W
Max cathode current
12.5 mA

Published ratings/characteristics are also preserved as parameter rows. Philips HCH81 heptode mixer/amplifier section, not a hexode. Maximum continuous anode voltage 250 V, dissipation 1.7 W, screen dissipation 1 W, cathode current 12.5 mA. Screen-grid voltage 125 V applies under the specified current condition; up to 250 V is allowed at plate current below 1 mA. The 550 V anode/screen figures are cold limits. Plate resistance about 1 MΩ is a specified mixer operating-point characteristic, not an absolute maximum.

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

1999 Philips E-Z

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • parallel supply Ve =

    12.6 V

    . parallel supply Ve = 12,6V

  • série ou parallele I =

    150 ma

    série ou parallele I = 150 ma

  • Cg =

    2.6 pF

    Cg = 2,6 pF Cgy = 4,8 pF Cgigy ¢ 0,3 DF

  • Cg =

    4.8 pF

    Cg = 2,6 pF Cgy = 4,8 pF Cgigy ¢ 0,3 DF

  • Ca =

    2.1 pF

    Ca = 2,1 pF Ca = 7,9 pF Cgyf < 0,17 pF

  • Ca =

    7.9 pF

    Ca = 2,1 pF Ca = 7,9 pF Cgyf < 0,17 pF

  • Ca =

    0.17 pF

    Ca = 2,1 pF Ca = 7,9 pF Cgyf < 0,17 pF

  • Cag =

    0.006 pF

    Cag = 1,0 p¥F Cagy < 0,006 pF Cgaf ¢ Q0,06 DF le—

  • Cgf <

    0.02 pF

    Cgf < 0,02 pF Cgy = 6,0 pF

  • Cgf <

    6 pF

    Cgf < 0,02 pF Cgy = 6,0 pF

  • Cag-aT =

    0.2 pF

    Cag-aT = 0.20 pF) CgiH-gT < 0,170 pF

  • Cag-aT =

    0.17 pF

    Cag-aT = 0.20 pF) CgiH-gT < 0,170 pF

  • Caf-gT ¢

    0.09 pF

    Caf-gT ¢ 0,090 pF CgiH-(gT+gy) ¢ 0.450 pF

  • Caf-gT ¢

    0.45 pF

    Caf-gT ¢ 0,090 pF CgiH-(gT+gy) ¢ 0.450 pF

  • Cgi H-aT ¢

    0.06 PF

    Cgi H-aT ¢ 0,060 PF CaH-(gT+gs) ¢ 0,350 PF

  • Cgi H-aT ¢

    0.35 PF

    Cgi H-aT ¢ 0,060 PF CaH-(gT+gs) ¢ 0,350 PF

  • c parallel supply Ve =

    12.6 V

    c parallel supply Ve = 12,6 V

  • série ou paralléle Ip =

    150 mA

    série ou paralléle Ip = 150 mA

  • Cg =

    2.6 pF

    Cg = 2,6 pF Cgy = 4,8 pF Cgrga ¢ 0,3 pF

  • Cg =

    4.8 pF

    Cg = 2,6 pF Cgy = 4,8 pF Cgrga ¢ 0,3 pF

  • Cg =

    0.3 pF

    Cg = 2,6 pF Cgy = 4,8 pF Cgrga ¢ 0,3 pF

  • Ca =

    2.1 pF

    Ca = 2,1 pF Ca = 7,9 p¥F Cgy' < 0,17 pF

  • Ca =

    0.17 pF

    Ca = 2,1 pF Ca = 7,9 p¥F Cgy' < 0,17 pF

  • Caz =

    140 PF

    Caz = 140 PF Cagy ¢0,006 pF Cgaf ¢ 0,06 PF

  • Caz =

    0.006 pF

    Caz = 140 PF Cagy ¢0,006 pF Cgaf ¢ 0,06 PF

  • Caz =

    0.06 PF

    Caz = 140 PF Cagy ¢0,006 pF Cgaf ¢ 0,06 PF

  • Cgf <

    0.02 pF

    Cgf < 0,02 pF Cay = 6,0 pF

  • Cgf <

    6 pF

    Cgf < 0,02 pF Cay = 6,0 pF

  • Caf-aT =

    0.2 pF

    Caf-aT = 0.20 pF') Cg, H-gT < 0,170 pF

  • Caf-aT =

    0.17 pF

    Caf-aT = 0.20 pF') Cg, H-gT < 0,170 pF

  • CaH-gT <

    0.45 pF

    CaH-gT < 0,090 p¥ Cg1H-(gT+g3) ¢ 0.450 pF

  • Cg:1 H-aT ¢

    0.06 pF

    Cg:1 H-aT ¢ 0,060 pF CaH-(gT+ga) ¢ 0,350 pF

  • Cg:1 H-aT ¢

    0.35 pF

    Cg:1 H-aT ¢ 0,060 pF CaH-(gT+ga) ¢ 0,350 pF

  • 939

    88 A

    939 088A

  • Vg =Vp =

    200 v

    Vg =Vp = 200 v

  • Ves =

    -28 v

    Ves = -2,3 -28 v

  • Sc =

    7.75 uA

    Sc = 775 7,75 uA/v

  • Vg = Vp =

    100 v

    Vg = Vp = 170 100 v

  • Va=Vp =

    200 v

    Va=Vp = 200 v

  • Vg =

    -28 v

    Vg = 2,3 -28 v

  • Se =

    7475 w

    Se = 775 7475 whA/v

  • Vg = Vy =

    100 v

    Vg = Vy = 170 100 v

  • I(gT+gs) =

    200 W

    I(gT+gs) = 200 W KA

  • Vg, =220 ~24 ST

    24 S

    Vg, =220 ~24 ST -14,5°V

  • Se

    6.2 w

    Se - 750 7,5 620 6,2 wb/V

  • Va = Vp =

    200 v

    Va = Vp = 200 v

  • Ve =

    0 v

    Ve = 0 v

  • Vg| = =243

    -33 v

    Vg| = =243 -33 v

  • S =

    0.024 mA

    S = 2,4 0,024 mA/V

  • Vas = ¢}

    0 v

    Vas = ¢} 0 v

  • 2,0 A-28 A

    -2 A

    -2,0 A-28 A

  • 2,0 A-28 A

    -28 A

    -2,0 A-28 A

  • =141

    -16.5 V

    =141 -16,5 V

  • S =

    0.02 mA

    S = 2,3 0,023 2,0 0,020 mA/V

  • Eingangswiderstand bei

    100 MHZ

    Eingangswiderstand bei 100 MHZ

  • Vg = Vp =

    200 v

    Vg = Vp = 200 v

  • Ves =

    0 v

    Ves = 0 v

  • S =

    0.024 ma

    S = 2.4 0,024 ma/vV

  • Vg, ="

    -16.5 V

    Vg, =" -2,0 -28' - -16,5V

  • s =

    0.02 ma

    s = 2,3 0,023 2,0 0,020 maA/vV

  • Eingangswiderstand bei

    100 MHz

    Eingangswiderstand bei 100 MHz

  • Va =

    100 v

    Va = 100 v

  • S =

    3.7 mA

    S = 3,7 mA/V

  • Vy =

    100 V

    Vy = 200 170 100 V

  • Ia =

    2.5 mA

    Ia = 5,4 4,5 2,5 mA

  • Seff =

    0.58 mA

    Seff = 0,65 0,65 0,58 mA/V

  • 50 mW of the output tube. For the triode section the

    50 mW

    50 mW of the output tube. For the triode section the

  • une puissance de

    50 mW

    une puissance de 50 mW du tube de sortie, La valeur

  • Va =

    100 V

    Va = 100 V

  • Ia =

    13.5 mA

    Ia = 13,5 mA

  • Serr =

    0.58 ma

    Serr = 0,65 0,65 0,58 ma/v

  • von

    50 mW

    von 50 mW erzeben. Der entsprechende Wert fir den Trioden-

  • Vao = max

    550 V

    Vao = max. 550 V

  • Va = max

    250 V

    Va = max. 250V

  • Wo = max

    0.8 W

    Wo = max. 0,8 W

  • Tx = max

    6.5 mA

    Tx = max. 6,5 mA

  • Yk = max,

    100 V

    Yk = max, 100V

  • Vgllg = +0.3 pd) = max

    1.3 V

    -Vgllg = +0.3 pd) = max. 1,3V

  • Va, = max.,

    550 V

    Va, = max., 550 V

  • Va = max. <250V

    250 V

    Va = max. <250V

  • Wy = max,

    1.7 W

    Wy = max, 1,7 W

  • Vi{gergs)o = max

    550 V

    Vi{gergs)o = max. 550V

  • Vg2

    1257 V

    Vg2 4ge ) =max., 1257V

  • V(gasge )(fa <1 mA) = max,

    1 mA

    V(gasge )(fa <1 mA) = max, 250 V

  • V(gasge )(fa <1 mA) = max,

    250 V

    V(gasge )(fa <1 mA) = max, 250 V

  • Vir = max,

    100 v

    Vir = max, 100 v

  • Vg (Igy=+40,3 ua) = max

    40.3 ua

    Vg (Igy=+40,3 ua) = max. 1,3V

  • Vg (Igy=+40,3 ua) = max

    1.3 V

    Vg (Igy=+40,3 ua) = max. 1,3V

  • Vg (Igy=+0,3 wa) =max

    0.3 w

    Vg (Igy=+0,3 wa) =max. 1,3V

  • Vg (Igy=+0,3 wa) =max

    1.3 V

    Vg (Igy=+0,3 wa) =max. 1,3V

  • Vag = max.,

    550 V

    Vag = max., 550 V

  • Va = max,

    2507 V

    Va = max, 2507V

  • Wa = max

    0.8 W

    Wa = max. 0,8 W

  • Ty = max,

    6.5 mA

    Ty = max, 6,5 mA

  • Vif = max

    120 V

    Vif = max. 120 V

  • ~Vglig = +0,3 pA) = max,

    1.3 V

    ~Vglig = +0,3 pA) = max, 1,3V

  • Va, = max

    550 V

    Va, = max. 550V

  • Ty =wmax

    1.7 W

    Ty =wmax. 1,7 W

  • Vige+ee Jo = max

    530 V

    Vige+ee Jo = max. 530V

  • Viea s ) = max,

    125 V

    Viea s ) = max, 125V