Price 25 cents';'
for Industrial and Military Applications RCA Nuvistor Tubes
For I nd ustrio I 0 nd Milito ry Applications
General symmetry of the assembly of these tubes This brochure presents data for also eliminates the need for mica spacers eight industrial-nuvistor receiving-type and thus removes one of the usual limi ta tubes including three types designed to tions to high-temperature operation. meet Military Specifications. The basic design of nuvistor tubes The nuvistor design, developed by makes it possible to maintain a high RCA, utilizes a light-weight, cantilever degree of control over the fabrication supported, cylindrical electrode struc of parts and assemblies. Consequently, ture housed in an all-ceramic-and-metal extremely close electrode spacings with envelope (See CUTAWAY VIEWS on page 4). an exceptionally high degree of mechani This unique design represents a combina cal uniformity can be achieved. The tion of materials, processes, and fabri precise control over processing also cation techniques which has provided a contributes to exceptional uniformity of electrical characteristics from tube major breakthrough in electron~tube performance, reliability, and size. to tube. This combination of strong structural Because the nuvistor tube contains assembly with all-brazed connections and no glass or mica components, has a short seals, all-ceramic-and-metal construc low-mass structure, and is processed at tion, and high-temperature processing very high temperatures, it is capable provides very small tubes which give of operating reliably under severe en dependable performance under extreme vironmental conditions. environmental condi tions, such as thermal or mechanical shock, continuous vibra The RCA Dark Heater tion, and high temperature. Each of the nuvistor types described Another important and novel feature in this brochure utilizes the RCA Dark of the nuvistor design is the use of Heater. This heater operates at tempera two peripheral lugs of unequal width tures as much as 350 degrees Kelvin which (1) provide visual and/or mechani below the 1500-to-1700-degree-Kelvin cal indexing, (2) provide protection temperatures required by conventional for the base pins, and (3) permit safe, heaters. easy, and rapid insertion of tubes into The reduced heater operating tempera sockets. ture results in greatly increased tube The advantages of the nuvistor design life and reliability. The lower internal are numerous. The cylindrical symmetry stresses in the heater wire and the of the electrode structure assures a smaller thermal change during heater uni form emission pattern. This symmetry warm-up minimize recrystallization and together wi th the cantilever construction thus assure long heater life. Other permits the use of close-tolerance jigs advantages of the RCA dark heater include for extremely precise tube assembly. (1) substantially less change in heater High-temperature brazing of the assem shape, which greatly reduces the possi blies in these jigs eliminates the need bili ty of heater damage and heater shorts, for spot-welding and produces a virtually (~) extremely stable current character strain-free structure. The inherent istics throughout li.fe t'o assure con-
Printed in U.S.A.tS-S3) - 2 - stant cathode temperature, (3) signi fi of 10 .. 8 x 10 16 neutrons per square centi cant reduction in ac leakage and hum meter. All of the 7586 nuvistor tubes to eliminate "spikes" or pulse leakage remained operable and exhibited an aver currents sometimes present in conven age change in transconductance of less tional heaters, and (4) greater margin than 1 per cent. of safety within established maximum The results of these tests indicate heater-cathode-voltage ratings. that "the RCA nuvistor is in a class of active electronic-circuit components Nuvistor-Tube least susceptible to catastrophic failure Reliability from nuclear radiation." RCA nuvistors are especially suited for use in applications where long-term reliability and uniformity of charac INDUSTRIAL-TYPE NUVISTORS teristics from tube to tube are cri tical The eight industrial-type nuvistors design considerations. described below are speci ficall y designed Samples of nuvistor type RCA-7586 for use in industrial applications where have been life-tested (for over 1,600,000 compactness, low power drain, low-plate tube-hours) both at maximum-rated condi vol tage operation, exceptional uni formi ty tions and at typical-operating condi of characteristics from tube to tube, tions. The results of these life-tests ability to withstand severe mechanical indicate that the lot failure rate per shock and vibration, and ability to 1000 hours for the 7586 is only 0.475 operate over a wide temperature range per cent at a confidence level of 95 are primary design requirements. per cent to 10,000 hours. Each of these nuvistor tube types is rigidl y controlled during manufacture, Nuvistor Performance in Presence is subjected to rigorous tests, and may of Nuclear Radiation be operated at maximum ratings at any RCA nuvistors are suited for use in altitude. electronic equipment that must perform RCA-7586 is a general-purpose, dependably in the presence of nuclear medium-mu triode for use in high-gain, radiation fields. low-noise amplifier applications at fre RCA nuvistors have been exposed to quencies up to 400 Mc, and as an oscil both pulse and steady-state nuclear lator tube having excellent stability radiation as specified in the Neutron over a wide range of frequencies. This Radiation Damage Test, Mili tary Standard tube is also capable of giving reliable MIL-STD-446A dated 25 November 1960. performance in applications such as The specific test exposure levels and "on-off" control involving long periods resul ts are: of standby operation. Pulse Nuclear Radiation. Nuvistor RCA-7587 is a general-purpose, types RCA-7586 and 7587 were operated double-ended, sharp-cutoff tetrode for in a 15-kc ampli fier circui t and moni tored use in r f -, i f -, and vi d eo - am p li fie r during exposure to pulse nuclear radia applications, mixer applications, and tion having an integrated total neutron "on-off" control applications. flux of 2 x 1012 neutrons per square RCA-7895 is a general-purpose, centimeter. The recovery of the output high-mu triode for use in high-gain, signal for both the 7586 and 7587 occurred low-noise amplifier applications at fre in less than 0.5 millisecond after the quencies up to 400 Mc, as an oscillator end of the radiation pulse. tube over a wide range of frequencies, Steady-State Nuc 1ear Rad i at i on. Sam and in "on-off" control applications. ples of nuvistor type RCA-7586 were RCA-8056 is a medium-mu triode exposed to steady-state nuclear radiation specifically designed for operation having an integrated total neutron flux with plate-supply voltages of l2 to 50
- 3 - volts. This tube is especially useful which assu res very l ow heater-cathode in low-noise rf- ampli fier, i f- ampli fier , leakage, (2) high transconductance at control, mu l ti vibrator, cathode- follower, low plate current, (3) high perveance, and other appli cations requiring a device and (4) three base-pin connections for having a high input impedance . the cathode to minimize lead inductance When used with a l ow-voltage power andpermits flexibility in circuit design . supply, the 8056 can provide high gain with low noise in small - signal amplifier applications at frequencies up to 350 Mc. NUVISTORS DESIGNED TO MEET MILITARY SPECIFICATIONS RCA-8058 is a double- ended, high-mu triode for use in cathode-dri ve- ampli fier JAN-7586 is similar to the RCA-7586 applications at frequencies up to 1200 described above but is designed to meet Mc, and as an oscil l ator tube havi~g Military Specification MIL-E-l/ 1397A excellent stability over a wide range dated 5 July 1962. of frequencies . The 8058 is particularly suitable for cathode-drive applications JAN-7587 is similar to the RCA-7587 because the metal shell is used as the described above but is designed to meet grid terminal. Military Specification MIL-E-l/ 1434A dated 11 June 1963. The double-ended construction of the 8058 provides a high degree of JAN-7895 is simi lar to the RCA - 7895 isolation between the input and output described above but is designed to meet circui ts . Furthermore, this tube fea Military Specification MIL - E-l/ 1433A tures (1) a specially designed cathode dated 11 June 1963.
CUTAWAY VIEWS Showing Cylindrical Electrodes and Tripod-Like Supports
E CAP
EATER HEATER
CERAMIC nATE INSULATOR
CATHO DE
GRID No.1 ETAL SHELL
METAL SHELL
CERA MIC BASE WAFER CE RAMIC BASE WAFER
DEXI LUGS
""-INDEXING/' LUGS Typical Typical Typical Single-Ended Double-Ended Double-Ended Nuvistor Triode Nuvistor Tetrode Nuvistor Triode
- 4 - RCA Industrial Nuvistors
DIMENSIONAL OUTLINES TERMINAL DIAGRAMS All Dimensions in Inches Bottom View
!.400 MAX. DIA'j p
MT4 METAL Types SHELL .625 MAX. 7586 7895 8056
G INDEX=LARGE LUG e=SHORT PIN; Ie-DO NOT USE
92C5-12024 12AQ 4-4
~ .250±.005 I-- I DIA. I METAL CAP JEDEC t NO.CI-44 .220 MIN. +
.840 CERAMIC .790 INSULATOR .420 MAX.DIA. Type 1.050 MAX. 7587
GI INDEX= LARGE LUG • = SHORT PIN; Ie-DO NOT USE 12AS BASE JEDEC No.E5-65 92C5-12025 4-5
METAL CAP JEDEC NO.CI-44 .220 MIN. !
.780 CERAMIC .735 INSULATOR Type .420 MAX. DIA . .985 MAX. 8058
K INDEX = LARGE LUG • = SHORT PIN; Ie-DO NOT USE 12CT BASE JEDEC No.E5-79 92C5-12026 4-6
NOTE I: MAXIMUM OUTSIDE DIAMETER OF 0.440" For IS PERMITTED ALONG 0.190" LUG LENGTH. SOCKET & CONNECTOR INFORMATION, NOTE 2: METAL-SHELL TEMPERATURE SHOULD BE see Page 14 MEASURED IN ZONE "A".
- 5 - RCA Industrial Nuvistors
ELECTRICAL DATA
SPEC I AL TESTS AND CONTROLS LIFE TEST RCA DARK HEATER Rated Center Val ues TYPE CLASSIFICATION INTENDED APPL I CATI ONS AND FEATURES .., '" ...... " en... g: £" I Vol ts Amp ...... '" '"... u.. UJ'" General-purpose type capable of providing high gain with low noise in amplifier applications up to 400 Mc. Excellent stability as oscillator tube over a wide I I I I I I I I I I 6.3 0.135 7586 Medium-Mu Triode range of frequencies. Reliable perform ance in "on-off" control applications involving long periods of standby oper ation.
JAN-7586 Medium-Mu Triode Same as 7586 but, in addition, designed I I I I I to meet indicated Military Specification. I I I I I I 6.3 0.135 Double-ended, general-purpose type for 7587 Sharp-Cutoff rf-, if-, andvideo-amplifier, mixer, and I I I I I I I I I I I 6.3 O.ISO Tetrode "on-off" control applications. Sharp-Cutoff Same as 7587 but, in addition, designed JAN-7587 Tetrode to meet indicated Military Specification. I I I I I I I I I I I 6.3 O.ISO General-purpose type capable of providing high gain with low noise in amplifier applications up to 400 Mc. Excellent 7895 High-Mu Triode stability as oscillator tube over a wide I I I I I I I I I I I 6.3 0.135 range of frequencies. Also "on-off" control applications.
High-Mu Triode Same as 7895 but, in addition, designed I I I I I I I I I I I 6.3 0.135 JAN-7895 to meet indicated Mili tary Specification. Low-plate-voltage (12 to 50 volts) type 8056 Medium-Mu Triode for low-noise rf- and if-amplifier, con I I I I I I I I I I I 6.3 0.135 trol, multivibrator, and cathode-follower applications. Double-ended type for cathode-drive 8058 High-Mu Triode amplifier applications up to 1200 Mc. Has excellent stability as an oscillator I I I I I I I 6.3 0.135 tube over a wide range of frequencies.
MECHANICAL DATA Termi nal- Di men s i on a I Diagram Base Operating Weight Type Outline JEDEC Position (Approx.) JEDEC No. Designation JEDEC No. Pins Grams
7586 4-4 12AQ E5-65 5-Pin Any 1.9
7587 4-5 12AS E5-65 5-Pin Any 2.4
7895 4-4 12AQ E5-65 5-Pin Any 1.9
8056 4-4 12AQ E5-65 5-Pin Any 1.9 8058 4-6 12Cf E5-79 5-Pin Any 2.2
- 6 - ELECTRICAL DATA
Max imum MAXIMUM RATINGS Grid-Circuit CHARACTER IST I CS, CLASS AI AMPLI F I ER Abso I ute-Max i mum Val ues Res i stanced For Operation at Any Alti tude Megohms TYPE
Plate Gr i d Cathode Grid Ampl i fi- Plate Transcon- Cutoff Plate Grid Volts PI ate Peak Supp I y PI ate Supp I y Resistor Resistor cat ion Resistance ductance PI ate Grid Volts Supp I y Plate Neg. Pos. Grid Cathode Dissipa- Heater- Fi xed Cathode Vol ts Vol ts Vol ts Ohms Ohms Factor Ohms fA11hos mao at plate Vol ts Vol ts Bi as Peak mao mao tion Cathode Bias Bi as f1B. = lOa Watts Volts
75 - 0 100 - 35 3000 l1SXl 10.5 -7 - 40 0 - 0.5 M 35 3000 l1SXl 7.5 - 330 110 55 4 2 15 1 ± 100 0.5 1 - 26.5 0 - 0.5 M 31 4400 7000 2.8 - 7586
For data, refer to MIL- E- 1/1397 A, 5 July 1962b JAN-7586
125 Oc I 68 - - 0.2 M 10600 10 -4. SC 330 15SC 2C 2C 20 2.2 ± 100 I - I I I I I I I I I 2~ 1 I I I I 0.5c lC 7587 Grid-No.2 supply volts = 50 Grid-l'k>.2 rna. =2.7 Grid-No.2 supply volts = 330, grid-No.2 volts = 110, grid-No.2 input = 0.2 watt
For data, refer to MIL-E-l/ 1434A, 11 June 1963 b JAN-7587
no - 0 l~ - 64 6800 9400 7 -4 330 no 55 2 2 15 1 ± 100 0.5 1 7895
For data, refer tD MIL-E-l/ 143 3A, n June 1963 b JAN-7895
24 - 0 100 - n.s 1530 7500 8.7 -S@~f1B. - 50 55 2 2 15 0.45 ±100 lOe lO e 8056
no - 0 47 - 70 5600 12400 10 -5 330 l~ 55 0 0 15 1.5 ± 100 0.5 1 8058
a Unless otherwise specified. C Grid No. 1. b A copy of this specification may be obtained from: d For operation at metal- shell temperature of 1500 C unless Specifications Division otherwi se speci fied. For operation at other metal- shell temperatures, see accompanying GRID-CIRCUIT-RESISTANCE Naval Supply Depot aIARTS. 5801 Tabor Avenue e For operation at metal- shell temperatures up to 1500 C. Philadelphia 20, Pa.
7586 7895 7587 8058 8056
- 7 - RCA Industrial Nuvistors
GRID-CIRCUIT-RESISTANCE CHARTS 7586 7587 108 4 6 2 \.. 4 , t=CATHODE - BIAS Is \.\ CATHODE 2 '\. 6 f- BIAS f---r=== f-(f) -(f) 4 -;:0 :::J::E :::J:o: U:o: .\. U o I "<'\ 0::0 \.\ Q:", 8 <3'" 2 uw 6 ,W I::E --:::;: A\ 91 4 }.. fl O.ls O::w OW 6 FIXED'--:t. "'u FIXED-V '\. -uO::z ;:02 2 '\. ~-.-- 4 BIAS :::J<{ BIAS <{ ::Ef- ::;:f- -(/) ~'\. :::>!!1 2f-- \. I'\. ::E(/) ~fii 0.1 -w ::EO:: 8 _.. \\ 6 ~a:O.Ols f------::E 6 4 '\. I'\. "- "- 4 2f--· 1'\.'\ 2 \.\ 0.01 '\ 0.001 \ o 50 100 150 200 250 o 50 100 150 200 250 METAL-SHELL TEMPERATURE - °c METAL-SHELL TEMPERATURE-oC
92CS-1I911 92CS-IIS96
7895 8056 4 lOS 6 2 I"- I-CATHODE 4 ,,\ \ 18 BIAS 2 CATHODE BIAS 6 OR - f-(f) 4 f-Ul FIXED BIAS 5~ Uo 5~ I ~ g;", 2 I"\. ~g s uw 'i'w 6 ';:0 ") 91 0.18 FIXED ~i 4 ffi~ 6 BIAS 1\." "'w ;:oz ::;:U :::J<{ 4 2 \ ;:Of- ~~ ~~ 2 X!:.Q \ ::E 0::W ~~o.~ 0_01 " 8 6 6 ." 4 4 \. \ 2 2 0.001 0_01 o 50 100 150 200 250 o 50 10 o 150 2 00 25o METAL-SHELL TEMPERATURE-oC METAL - SHELL TEMPERATURE _oc
92CS-12023 92CS-11479RI
8058 108 6 4 "'"- 2 '\. '- I-CATHODE - '\ BIAS f-(f) ,,\ / U5~ I g;",o 8 Uw 6 ';:0 ~~ 4 "'u "- ;:oz 1\ '\. :::J 92CS-12022 - 8 - AVERAGE CHARACTERISTICS 7586 7587 o v Ef =6.3 VOLTS GRID-N22 VOLTS=50 ··1 ~~. ·f.... 1 1 j ·,l· If o ·f II. 8 s~llll ...... ~ ~ . H++t+H+l+tr ~.)~ n T a) ex> N o PLATE MILLIAMPERES 92CM-I0460R2 92CM-I0926RI - 9 - RCA Industrial Nuvistors ______ AVERAGE CHARACTERISTICS 7895 8056 o It) It) v o v It) '" It) o· PLATE MILLIAMPERES PLATE MILLIAMPERES 92CM-I0965RI 92CM-1I469RI - 10 - ______RCA Industrial Nuvistors AVERAGE CHARACTERISTICS 8058 7586 Ef =6.3 VOLTS Ef =6.3 VOLTS 50 ~\oo t5~ ~ ':t 401-- ~o\,1\ ;3gj 0 ~ p.'\: boO LL.I- .., ':l 30O:~ \P '" ::;:LL. \ « \J.i 20 ,9, 0 0 (/) 0, N I- 20000 ...J ~ 0 0 w 17500 .n. ° ~r;s. «I- ~ !-:' ...J (/) 'p ~ ~~ a. ::;: Ul 0. 0"'1: 0 J: ... 015000 ...0. q.<:\te '" I f!- -12500 w (). u z w 0 « u 0 t;;10000 10000::1 (/) I- W U :l a: CI w7500 7500 t5 ~ U ...J (/)z 0 a. 5000 5000;2 '" I- 2500 2500 .L ~((': ~ 0 0 0 0 0 .,. N 52 -4.5 -4 3.5 -3 2.5 2 -1.5 -0.5 0 '" PLATE MILLIAMPERES GRID VOLTS 92CM-11430RI 92CM-I0964 - 11 - RCA Industrial Nuvistors AVERAGE CHARACTERISTICS 7587 7895 Ef =6.3 VOLTS E .. b.3 VOLTS PLATE VOLTS=125 GRID N"2 VOLTS=50 16000 80 .p ~ 14000 70 '-' '-'~ a: 0 l- V '" bO !i z 0 12000 50 t: v "- fJ) ...J 0 :J: 40 ~ ::0 0 « a: 25 10000~ 30 1 E ~ fJ) lJJ w uz a: 20 w 8000~ 40000 0 20000 Q. U ::0 :::> 0« z0 -' 0 -' u 92CM-I0927 92CM-I0967 - 12 - RCA Industrial Nuvistors AVERAGE CHARACTERISTICS 8056 Ef =6.3 VOLTS 15 15000 Ef - 6.3 VOLTS 1 ~ i 1 15 I I ~+~ 0.1 12500 -L '0 '000 , I U) 0.09 U) W 1 ~ 0 a:: 1'e,000. ~~ I w 10 ::E Il. 0 ::;: 1 0.08 10000 a:: « -f±400W- u ..J 0.02 2500 Ef =6.3 VOLTS 15 0.01 0 ~3 2 0 GRID VOLTS 20 30 40 50 PLATE VOLTS 92CS-1I465R2 - 13 - RCA Industrial Nuvistors ______ SOCKET & CONNECTOR INFORMATION The sockets listed below by manu brochure. Information on sockets having facturer's or distributor's part number different casting materials, contact have 5 contacts and an annular groove materials, or finishes, may be obtained designed to mate, respectively, with from the manufacturers. Sockets having the 5 base pins and the 2 indexing lugs mechanical and electrical characteristics of the bases utilized on the 8 RCA indus comparable to these sockets may be avail trial nuvistor tubes described in this able from other component manufacturers. Manufacturer or Distributor and Part No. Description Cinch-Jones Cinch f g Industrial Electronic Appl ication Mounting Mfg. Co. Sales Division Distributors Hardware Corp. h MS'J 0905-1 Crimp mounting 133 65 10 001 5NS MSN 0905-2 General MS'J 0905-3 Purpose Flange mounting 133 65 10 003 5NS-1 Type - Printed fuard ( "Stand-off") 133 65 10 009 5NS-2 - lliF Heat-rnssipating Crimp mounting 133 65 10 041 5NS-3 - Type f 1026 South Homan Avenue, Chicago 24, Illinois. g Cinch-Jones Sales Division of Cinch Mfg. Co. h 109 Prince Street, New York 12, N.Y. Nuvistor types 7587 and-8058 utilize a JEDEC No.Cl-44 top cap. Cinch Mfg. Co. Part Nos. 6005 or 422 03 22 017, 6014 or 422 03 22 024, or equivalent 11/4-inch" connectors, may be used. ADDITIONAL TECHNICAL & APPLICATION DATA RCA also manufactures 7 other nuvistor tubes (types 2CW4, 6CW4, 13CW4; 2DS4, 6DS4; 2DV4, 6DV4) intended for home-entertainment equipment. Technical information on these types and additional information on the S industrial nuvistor tubes described in this brochure, in the form of Technical Bulletins and Application Notes, is available upon request from: Commercial Engineering Activity RADIO CORPORATION OF AMERICA Harrison, New Jersey Technical Bulletins Application Notes For speci fic RCA industrial nuvistor The following Application Notes for types, technical bulletins gi ving charac indus trial nuvistor tubes are avail able: teristics range values for equipment AN-193 "Use of RC...A-75S7 Industrial design, special ratings and performance Nuvistor Tetrode in RF and IF Applica- data, characteristic curves, and appli t10ns.. " cation information, are available. Be AN-195 "Noise and Gain of the RCA-S056 sure to mention the specific nuvistor Nuvistor Triode at 200 Megacycles. " type for which a technical bulletin AN-196 "Temperature Ratings and Ther is desi red. mal Considerations for Nuvistor Tubes. " - 14 - ______RCA Industrial Nuvistors FIELD SALES AND ENGINEERING SERVICE RCA Field Sales and Engineering personnel specializing in RCA Industrial-Tube Products are available to Equipment Manufacturers, Government Activities, and Distributors at the following office locations: Equipment Sales 32-36 Green St. 6801 E. Washington Blvd. 1838 El Camino Real Newark 2, N.J. Los Angeles 22, Calif. Burlingame, Calif. 485-3900 RAymond 3-8361 OXford 7-1620 Merchandise Mart-Room 1154 Chi cago 54, Ill. 527-2900 Government Marketing 415 S. Fi fth St. 224 N. Wilkinson St. 1725 "K" St., N.W. Harrison, N.J. Dayton 2, Ohio Washington 7, D.C. 485-3900 BAldwin 6-2366 FEderal 7-8500 Distributor Sales 36 W. 49th St. Merchandise Mart-Room 2000 80 "A" St. New York, N. Y. Chicago 54, Ill. Needham Heights 94, Mass. MUrray Hill 9-7200 467-5900 HIllcrest 4-8480 7901 Carpenter Freeway 6801 E. Washington Blvd. 1600 Kei th Bldg. Dallas 7, Texas Los Angeles 22, Calif. 1621 Euclid Ave. MElrose 1-3050 RAymond 3-8361 Cleveland, Ohio CHerry 1-3450 1121 Rhodes Haverty Bldg. 1725 "K" St., N. W. *7711 State Line--Suite 112 134 Peachtree St., N.W. Washington 7, D.C. Kansas City 14, Mo. Atlanta, Georgia FEderal 7-8500 EMerson 1-6462 524-7703 * Engineering personnel are not available for consul tation at this Distributor Sales office. Information furnished by RCA is believed to be accurate and re liable. However, no responsibility is assumed by RCA for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of RCA. - 15 - RCA TRANSMITTING TUBE MANUAL TT-5 RCA RECEIVING TUBE RCA ELECTRON TUBE MANUAL RC- 22 HANDBOOK HB-3 For Product Availability Contact Aut h 0 r i zed RCA 0 i 5 t rib u tor RADIO CORPORATION OF AMERICA ELECTRONIC COMPONENTS AND DEVICES HARRISON , N. J.