Tested Nos Vacuum
Tested Nos Vacuum
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![]() Vintage NIB NOS 5591 403B Western Electric Vacuum Tube US $12.99
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![]() Vintage GE 6K6GT Vacuum Ham Amp Radio Tube 60 22 Date Codes Black Plates US $7.99
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![]() Raytheon 6SL7GT Vintage Ham Radio Vacuum Tube US $5.99
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![]() National Union JAN CNU 6SL7GT Black Glass Vintage Tube 247 51 39 date codes US $19.99
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![]() Rauland Branded RCA 12BH7A Tube Vacuum Radio Vintage 64 52 274 Date Codes US $9.99
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![]() Mullard Amperex e182cc 7119 pair 12AU7 tubes US $52.01
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![]() Pair NOS Tung Sol 7355 Vacuum Tubes Boxed Tested Excellent US $29.95
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![]() 4 NEW IN BOX GE 6Z10 6J10 COMPACTRON TUBES US $9.95
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![]() Genalex KT66 smoked glass brown base with orig box tube US $69.86
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![]() 4 NEW IN BOX GE 6AY3B 6BS3A DIODE TUBES US $9.95
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![]() A VINTAGE RAYTHEON 5U4GB BLACKPLATE NOS NIB VAC TUBE US $19.99
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![]() A VINTAGE CBS by GE 5U4GB BLACKPLATE NOS NIB VAC TUBE US $19.99
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![]() A VINTAGE GE 12BH7A NOS NIB VAC TUBE US $19.99
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![]() A LOT OF 5 SYLVANIA 6AL5 NOS NIB VACTUBES US $9.99
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![]() 5 NEW IN BOX SYLVANIA 17JQ6 POWER PENTODE TUBES US $12.95
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![]() VINTAGE NOS RCA VT 212 ACORN VACUUM TUBE JRC 958 A US $4.99
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![]() 5 Raytheon tubes 4EJ7 4DT6 4BQ7 4BZ6 4GK5 US $5.00
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![]() 2 NOS General Electric 6JE6C 6LQ6 Vacuum Tubes for Kenwood National Swan Radios US $41.00
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![]() 2 NOS Delco 6GJ5A Vacuum Tubes for National NCX 3 Amateur Radio Made by RCA US $9.99
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![]() 2 NOS Delco 6JG6A Vacuum Tubes 17 Watts for Audio Transmitters Made by RCA US $10.50
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![]() 2 NOS RCA 12JB6A Vacuum Tubes for Drake TR 3 Radio Transmitter US $11.99
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![]() RCA Interstage or Line Output Audio Transformer 20k CT to 600 ohm a pair tubes US $29.00
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![]() 4 GE 5751 12AX7 ECC83 Black Plate 3 Mica D Getter Amplifier Vacuum Tubes Tested US $72.00
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![]() 4 Tung Sol JAN 12AU7 ECC82 Black Glass D Getter Amplifier Vacuum Tubes Tested US $99.99
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![]() 1 Pair Tung Sol 2C51 396A Black Plate D Getter Amplifier Vacuum Tubes Tested NOS US $19.99
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![]() 1 Pair Tung Sol JTL 5687 Black Plate Horseshoe Amplifier Vacuum Tubes Tested US $24.99
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![]() A VINTAGE SYLVANIA 6FG6 EM84 NOS NIB VAC TUBE US $19.99
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![]() TWO CHATHAM ELECTRONICS 5651 VACUUM TUBES POWER SUPPLY PP 840 TRA 19 NOS US $.99
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![]() 2 vintage type 6BN6 vacuum tube tv radio gated beam discriminator GE NOS tested US $.49
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![]() ONE 6L6 GA NATIONAL TUBE NOS TESTED US $34.26
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![]() ONE 71 A WESTINGHOUSE TUBE NOS TESTED US $26.92
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![]() 1 GE NIB NOS 5Y3GT RADIO AMP VACUUM TUBE TESTED VERY GOOD US $4.75
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![]() ^ NOS NIB RCA 12V6GT vacuum tube in original boxtested great12V6 US $5.95
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![]() VINTAGE PAIR OF NOS 2D21 VACUUM TUBES TESTED US $1.25
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![]() ^ NOS NIB Pair Sylvania 6P5GT tubesoriginal boxestested greatMatching DC6P5 US $39.95
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![]() ^ Pr NOS NIB Silvertone 7A6 Loktal loctal vacuum tubesoriginal boxtested great US $9.95
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![]() ^ NOS NIB Pr Sylvania 25AC5GT tubesoriginal boxtested greatMatching DC25AC5 US $19.95
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![]() ^ Pr NOS NIB Tung Sol 14F8 Loktal loctal vacuum tubesoriginal boxtested great US $14.95
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![]() NOS Copper Posts Matched Pair Sylvaina 12AU7A Both TEST STRONG US $9.99
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![]() Matched set of Amperex Bugel boy ECC83 12AX7 tubestested super strong nice pair US $41.00
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![]() ^ NOS NIB RCA 14A7 Loktal loctal vacuum tube in original boxtested great US $7.95
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![]() ^ Lot 2 NOS NIB 7G7 Loktal loctal tubesboxestested greatSylvaniaTung Sol US $14.95
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![]() Valvo EF12 Amplitrex Tested 100 US $65.00
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![]() ^ NOS NIB RCA 7Z4 Loktal loctal vacuum tube in original boxtested great US $7.95
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![]() ^ NOS NIB Silvertone 7R7 Loktal loctal vacuum tube in original boxtested great US $5.95
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![]() PAIR of EF86 RFT BALANCED TUBES 6267 MATCHED US $36.99
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![]() 6HF8 NOS Tube by Sylvania Pair 2 US $8.00
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![]() 6BE6W NOS JAN 5750 Tube Sylvania US $4.00
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![]() RCA 12AU7A ECC82 VACUUM TUBE NOS GUARANTEED US $9.99
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![]() 2 Philco 6SN7GTB Vintage Vacuum Tubes Tested And Verified NIB NOS US $8.99
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![]() 2ea 5Y3GT NOS Vacuum Tubesblack plates US $19.99
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![]() Vintage RCA 902 Cathode Ray Vacuum Tube NOS in Box US 1945 US $9.99
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![]() 6K6GT 6V6GTA 6SN7GTB NIB NOS Vintage Vacuum Tubes Tested And Verified US $4.06
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![]() Four NOS RCA 6CM6 Beam Power Black Plate Vacuum Tubes Matched Test US $35.00
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![]() 2 AMPEREX RCA 6JW8 ECF802 NOS La Radio Technique US $17.50
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![]() 4 NOS Sylvania 50C6G 50C6 Black Plate Beam Power Amplifier Vacuum Tubes Tested US $30.00
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![]() Three NOS RCA 12FQ8 Twin Double Plate Triode Vacuum Tubes Tested Wurlitzer US $15.00
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![]() Box Lot of 80 Vintage Vacuum Tubes AUDIO AMP HAM RADIO TV US $8.95
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![]() Date Match Pair of Sylvania JAN CHS 6L6GA Amplifier Vacuum Tubes Test NOS US $39.99
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![]() vintage tube case with 490 Tubes Radio Tubes Television Vacuum TV Tubes NOS US $91.00
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![]() vintage tube case with 225 Tubes Radio Tubes Television Vacuum TV Tubes NOS US $9.26
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![]() lot of 4 Vintage 6AG5 Tubes Tested NOS US $9.99
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![]() 1 Pair of GE 6L6G Black Glass Amplifier Vacuum Tubes Test Strong US $39.99
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![]() lot of 4 Vintage 6AK6 Tubes Tested NOS US $9.99
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![]() 1 Wards Airline Type 27 Engraved Base Radio Amplifier Vacuum Tube Tested Strong US $6.99
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![]() 1 Raytheon 6080WB Graphite Plate Vacuum Tube Tests NOS US $29.99
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![]() 1 RCA 5687 Black Plate Horseshoe Amplifier Vacuum Tube Tested Strong US $.99
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![]() 1 RCA Radiotron 1C7G Radio Amplifier Vacuum Tube Tested Strong US $3.99
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Medical Protective Clothing Testing
Labthink, the excellent provider of testing instruments and testing services, is devoted to provide most excellent and complete quality control solutions for pharmaceutical, foodstuff, cosmetics, packaging, printing, adhesive, automotive, petrochemistry, environment, biology, new energy, construction, aviation and electronic industries worldwide.
Medical Protective clothing testing mainly includes the following items: barrier property testing (gas transmission quantity testing and moisture transmission testing), coefficient of friction(smoothness of material surfaces),tensile and elongation, peeling strength, heat seal strength, leak & seal, tearing and printing quality testing. Labthink Instruments Co. Ltd., meeting the demands for medical protective clothing testing, integrates medical protective clothing instruments as follows, so as to contribute to the quality testing of medical protective clothing enterprises.
1. Medical Protective Clothing Barrier Property Testing
Barrier property is defined as the barrier effects of packaging materials on gas (e.g., oxygen), liquid (e.g., water vapor) and other infiltrations. Barrier Property is the important factor affecting the product shelf-life. Relevant instruments are listed below:
A. PERME-DM2/330 Differential and Equal Pressure Methods Gas Permeability Tester: this instrument combines differential pressure method and equal pressure method in one unit. It is applicable for the gas transmission rate testing of plastic films, laminated films and sheets as well as finished packages. This instrument is fully automatic with three independent chambers and random temperature data curve fitting. It’s with temperature control; LAN data management.
B. PERME OX2/230 Oxygen Transmission Rate Testing System: is of coulometric principle and equal pressure method. This instrument is applicable for the oxygen transmission property testing of films and sheets, as well as bottles, cans and boxes. This instrument is of master base and satellite module mode: one master base can support 9 satellite modules with the realization of 30 samples tested simultaneously.
C. VAC-V Series Differential Pressure Gas Permeability Tester: is applicable for the oxygen, nitrogen and carbon dioxide permeability testing of plastic films and sheets as well as laminated films. This series of instruments, including VAC-V1, VAC-V2 and VAC-V3, etc., complies with differential pressure method.
D. PERME?W3/330 Water Vapor Transmission Rate Testing System: is used for the water vapor transmission rate testing of films and sheets as well as bottles, bags, cans and boxes. This instrument is of Master–satellite mode, one master base can connect 9 satellite modules with the realization of 30 samples tested simultaneously.
E. TSY-T Series Water Vapor Permeability Tester: is applicable in the water vapor transmission testing of packaging materials such as films and laminated films as well as high polymer products. This series of products are fully automatic, computer control and of weighing method. The series includes TSY-T1H, TSY-T1L and TSY-T3, etc.
2. Medical Protective Clothing Strength Testing
Medical protective clothing strength testing includes index testing like material tensile strength testing, peeling strength testing of laminated films, hot seal strength testing, tearing strength and pouch resistance testing. Tensile strength is the maximum strength value just before the material is snapped. Through testing, the package damage and rapture caused by external forces and insufficient packaging material mechanical strength can be resolved effectively. Peeling strength testing, also called complex strength testing, tests the bond strength between the layers of laminated films. If the bond strength is too low, leakage is easily caused by separation among the layers. Hot seal strength testing is to test the strength of the seals. During storage and transportation of products, low hot seal strength will cause problems such as rending and leakage. Pouch resistance is the index evaluating the anti-puncture strength of the package against rigid material.
Relevant testing instruments are as follows:
A. XLW Series Auto Tensile Testers: are for the peeling, tensile, heal seal and tearing tests of films, laminated films, adhesives and tapes. This series of products includes XLW?XLW?B??XLW?M??XLW?PC?and XLW?G?.
B. BLD-200S Auto Stripping Tester: is for the peeling, tensile and heat seal testing for films, laminated films, adhesive and tapes. The standard specifications are 200N (100N, 50N and 30N); mini-printer and computer connective.
C. HST-H3 Heat Seal Tester: is for the specimen preparation for the heat seal strength testing of films. Testing pressure, temperature and time are adjustable. This instrument adopts microcontroller for intellectual operation and PID high precision components for temperature so as to ascertain accurate temperature.
D. RTD-R2 Gradation Heat-Sealing Instrument: can prepare five groups of plastic films or flexible packaging laminated films simultaneously under five independent temperatures; and seal five groups of specimen simultaneously and efficiently.
3.Medical Protective Clothing Sealing Property Testing
The medical protective clothing sealing property testing can guarantee the completeness of the whole package and avoid leakage and deterioration caused by the inferior sealing property.
A.MFY-01 Leak Tester: is applicable for the package seal reliability testing by vacuumizing test chamber. Micro-computer control, panel operation, digital parameter pre-set and full-automatic testing.
B. LSSD-01 Leak and Seal Strength Detector: is for the heat seal and sealing completeness testing of bags, plastic bags and packages. The instrument is with intellectual testing process, LCD display, statistics communication and positive principle.
4.Medical protective clothing impact resistance testing can guarantee the effective protection of user. Impact resistance property testing can be classified as dart impact and pendulum impact.
A. Labthink BMC-B1 Falling Dart Impact Tester: is applicable in quality and energy testing of plastic films and sheets under the attack of free-falling dart at given heights, according to free-falling dart theory.
B. Labthink FIT-01 Film Impact Tester: is applicable to evaluate the force damaging the plastic film, laminated film, sheet and foil sample with its hemisphere head falling at certain speeds, so as to bring forward shock resistance evaluation of the material by measuring the consumed energy of the head.
5.Medical Protective Clothing Tearing Property testing
Tearing of medical protective clothing may occur because of external forces in storage, transportation and usage. Sufficient tearing resistant forces can reduce tearing and avoid dangers.
SLY-S1 Tearing Tester complies with Elmendorf method, and is applicable in tearing resistance test of films, laminated films, foils, paper and paper boards.
6.Medical Protective Clothing Coefficient of Friction Testing (Surface Smoothness)
Proper smoothness of the two sides of the clothing material can guarantee the good performances as well as smooth transportation and packaging in the assembly line.
A. MXD Series of Coefficient of Friction Tester is applicable in static and kinetic coefficient of friction test to plastic film, foils, sheets and paper. Through testing the smoothness of the materials, comfortableness and safety of medical protective clothing can be guaranteed to meet the demands. This series of products includes MXD-01, MXD-01A and MXD-02.
B. FTP-F1 Friction/Peel Tester: is computer control, and can test the material coefficient of friction between room temperature and 99.9 Centigrade as well as peeling strength of laminated films and adhesive products.
7.Medical Protective Clothing Testing for Thickness
Thickness is the basic index to test films. Uneven thickness would influence the tensile strength and barrier property as well as the following processing.
A. CHY-C2 Thickness Tester: is for the measurement of films, sheets and paper with mechanical contacting method, with no limitation for measured materials. Import high quality sensor with the resolution up to 0.1 ?m. The contact area and pressure between measure head and film/paper complies with relevant standards strictly, including multi-standards such as ISO and ASTM.
B. CHY-CA Thickness Tester: is of high precision up to 0.1?m, multi-point automatic continuous testing, LCD display, micro-printer and other distinguished functions of statistics and communication.
8.Medical Protective Cloth Printing Quality Testers
Ink-layer Bond Strength: YGJ-02 Adhesive Tape Roller and BLJ-01 Disc Peeling Tester work together to test the ink-layer bond strength of plastic films and cellophane paper (including laminated film printing products). Those testers can also be applied to test the adhesive state between the layers of vacuuming coating, exterior coating and compound.
MCJ-01A Rub Tester: is applicable for the abrasion resistance testing of ink layers and the photosensitive coating of PS board, so as to effectively analyze the issues of low abrasion resistance, ink layer falling-off, low press resistance and inferior coating rigidness of other products.
RT-01 Rub Tester: is for ink layer abrasion resistance testing of printing products. Arc moving mode; and double station design. This tester is highly effective and complies with ASTM, TAPPI and other international standards.
Labthink Instruments Co., Ltd.
No. 144 Wuyingshan Road, Jinan 250031, China
Tracy Bao info@labthink.cn
Tel: 0086 531 85061153 fax:0086 531 85812140
About the Author
Labthink, the excellent provider of testing instruments and testing services, is devoted to provide most excellent and complete quality control solutions for pharmaceutical, foodstuff, cosmetics, packaging, printing, adhesive, automotive, petrochemistry, environment, biology, new energy, construction, aviation and electronic industries worldwide.


US $12.99




































































