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2024年12月25日 星期三

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  • 更新时间:2024-12-25
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1C31197G01

1C31197G01

1C31197G01



QUALITROL IDM-T2-IDM-DAU-DFRO-U/G NSPP IDMT2IDMDAUDFROU



QUALITROL IDM-LSU-MKII NSPP IDMLSUMKII



QUALITROL 9039-0010 USPP 90390010



QUALITROL 109-119-02 USPP 10911902



Qualitrol 038-005-01 Gas Accumulation Indicator FREE SHIPPING



Qualitrol Corp. Rapid Pressure Rise Relay Model # 900-003-01



QUALITROL 108-019-01 USPP 10801901



Qualitrol AKM 35600 Pressure/Vacuum Switch FREE SHIPPING

From Canada


QUALITROL 900-009-01 USPP 90000901



# QUALITROL TEMPERATURE MONITOR MODEL# 118B-120-K-0-2



QUALITROL Flange Mount Rapid Pressure Rise Relay RPRR Model# 900-021-03 NEW



QUALITROL 208-60E, LARGE PRESSURE RELIEF DEVICE



QUALITROL 108-001-01 USPP 10800101



RAPID PRESSURE RISE RELAY 910-006-03 QUALITROL CORP



QUALITROL DAL-042-36 USPP DAL04236



Used Qualitrol Corp Temperature Monitor 111L-X-X 400009767-02



QUALITROL 3718659-G03 NSPP 3718659G03


电子技术是十九世纪末到二十世纪初开始发展起来的新兴技术,二十世纪发展迅速,应用广泛,成为近代科学技术发展的一个重要标志。在十八世纪末和十九世纪初的这个时期,由于生产发展的需要,在电磁现象方面的研究工作发展得很快,1785年法国科学家库伦由实验得出电流的库仑定律。1895 年,荷兰物理学家亨得里克·安顿·洛伦兹假定了电子存在。1897年,英国物理学家汤姆逊(J.J.Thompson)用试验找出了电子。1904年,英国人J.A.Fleming 发明了简单的二极管(diode或 valve),用于检测微弱的无线电信号。 1906 年,L.D.Forest 在二极管中安上了第三个电极(栅极,grid)发明了具有放大作用的三极管,这是电子学早期历史中重要的里程碑。1948 年美国贝尔实验室的几位研究人员发明晶体管。1958 年集成电路的第一个样品见诸于世。集成电路的出现和应用,标志着电子技术发展到了一个新的阶段。

电子技术研究的是电子器件及其电子器件构成的电路的应用。半导体器件是构成各种分立、集成电子电路基本的元器件。随着电子技术的飞速发展,各种新型半导体器件层出不穷。现代电力电子技术的发展方向,是从以低频技术处理问题为主的传统电力电子学,向以高频技术处理问题为主的现代电力电子学方向转变。电力电子技术起始于五十年代末六十年代初的硅整

电子产品

电子产品

流器件,其发展先后经历了整流器时代、逆变器时代和变频器时代,并了电力电子技术在许多新领域的应用。八十年代末期和九十年代初期发展起来的、以功率MOSFET和IGBT为代表的、集高频、高压和大电流于一身的功率半导体复合器件,表明传统电力电子技术已经进入现代电力电子时代。

Qualitrol DAL-042-49 DAL04249 Level Gage - Used



Qualitrol Pressure / Vacuum Gauge 050-011-01

From Canada


QUALITROL 1050-35K USPP 105035K



QUALITROL 250 ELECTRONIC ANALOG TEMPERATURE CONTROLLER MODEL 107-002-01 **XLNT**



QUALITROL 48515-1 Power Supply NEW



Qualitrol Air Pressure Relief Valve 5 PSIG 201-020-08T



QUALITROL 108-018-01 ELECTRONIC TEMPERATURE MONITOR CONTROLLER 69597



QUALITROL 108-018-01 ELECTRONIC TEMPERATURE MONITOR CONTROLLER 69691



QUALITROL 108-018-01 ELECTRONIC TEMPERATURE MONITOR CONTROL 277V 69692



QUALITROL CORP. LARGE PRESSURE RELIEF DEVICE, 208-60S, 12 PSI, 0.83 BAR, 410725



QUALITROL PRESSURE RELIEF DEVICE, 208-60S, 12 PSI, 0.83 BAR, 410727, 06/23/08



NEW QUALITROL 208-60U LARGE PRESSURE RELIEF DEVICE 8PSI 68714



Qualitrol /ITE QualTherm Liquid Temprature Gauge 0-120C



NEW QUALITROL TRANSFORMER OIL FLOW METER INDICATOR N/R!



QUALITROL 165-50-12J QUALITHERM 0-120C DEG. TEMPERATURE GAUGE BRASS 4.5IN 57492



QUALITROL PRESSURE VACUUM SWITCH VALVE BOX#33



New PITTMAN GM14601C812 30 VDC 17.33:1 RATIO MOTOR 


From Israel

Weber Cable 808647 X4 Motor Connector w/Amp Connectors 20 ft Pittman Motor Cable



Lot 4 Pittman Ametek Gear Motor Actuator Screw 24V DC 65:1 Ratio 10:1 GM9413G421



ELCOM PITTMAN BRUSHLESS DC MOTOR W/ ENCODER CNC MACHINE 5193N001 EC110213



NWSL #30621-9 / O Scale or Larger (Motor/PITTMAN/ DC Skewed 7-Pole Balanced



Newly listedOld 1/24th Hubley Dragster Slot Car + Dynamic Chassis & Pittman Motor - 1960s

Unmounted Body - Dynamic Slicks & Mags on Rear


Pittman Gear Motor GM9413F490



Pittman Ametek Motor PICKER GM9391A051 IBM - 23R3170 24 VDC 96 CPR 6.3:1 Ratio



PITTMAN 24VDC MOTOR FOR WIND TURBINE GENERATOR OR SERVO MOTOR USE MADE IN USA

From Cyprus


Pittman Lo-Cog DC Motor GM9232C513-R5



PITTMAN LO-COG MOTOR 24VDC 14201E203 *S41



PITTMAN LO-COG 30.3 VDC MOTOR 14204E133-R2 WG60296 ( NEW )



Newly listedPittman 23186 Permanent Magnet DC Motor with encoder

One-day shipping available


pittman DC Motor gear 5.9:1 RATIO Stage XYZ CNC 24VDC TESTED GOOD

From Israel


PITTMAN 14204C346 24VDC - 14000 SERIES BRUSH MOTOR

From Poland


PITTMAN GM9236E513-R1 SERVO GEAR MOTOR 24VDC 127.7:1 RATIO LO-COG NEW



PITTMAN AMETEK BRUSHLESS DC MOTOR # A0422052NC-HCXX 24VDC 4000RPM NEMA17



Newly listedOld 1/24th Ram Pittman Revell Tyco MPC Slot Car Motors and Armatures NOS 1960s

Never Sold Old Slot Car Track Inventory - XLNT Cond


Newly listedOld 1/24th COX Pittman Mabuchi MPC Slot Car Motors - Armatures - Magnets 1960s

Clear Case Full - Some Parts New - Tradeship HP Magnets


PITTMAN GM8712E495 24VDC 1804:1 Motor =



Pittman Lo-Cog GM9213K158 SCD16258-1



Pittman MT14202C652-R2 Single Shaft Motor 1000 RPM



Pittman MT142050546-R1 Single Shaft Motor 1000 RPM



Newly listedNOS PITTMAN DC706 SLOT CAR MOTOR with original box and bonus DYNAMIC mount





PITTMAN 19.1V DC MOTOR GM9234E061 38.3:1 RATIO - NEW



Pittman Ametek Motor GM8222D305 - IBM 19P3086 - 24 VDC 10:1 Ratio (-R2)



LOT OF 6 X Pittman Ametek Motor 9233E740-R2 - IBM 23R3169 - 24 VDC 256 CPR



Pittman Dual Shaft Motor - 19V - High TQ - 8700 RPM



Pittman Gear Motor 24vdc 5.9.1 Ratio



ISCO 1580 / 1680 WATER SAMPLER SUPERSPEED PUMP MOTOR PITTMAN 13203b343 9.5 VDC



Pittman Servo Motor 24 VDC 5.9:1 Ratio Model GM9414B230

From Israel


AMETEK PITTMAN GM9233E695-R3 19.1 VDC GEAR MOTOR 19.7:1 RATIO CONTINUOUS TORQUE



Used Pittman Cog Gm8712E410 Brush Gearmotor Mounted



Pittman 9413 Dual Shaft Motor - 24V - High Torque Output - 6100 RPM - Boat / Sub


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