磁悬浮零件名单

电阻
Resistors listed in order by value are 1/4-watt, 5% unless otherwise indicated.在顺序列出按值电阻器1/4-watt，5％，除非另有说明。

300 ohms 300欧姆  R11 R11的  
500 ohms 500欧姆  R2 R2的  
1,000 ohms 1000欧姆  R1, R12, R13, R14 R1的，R12的，规管13，R14的  
1,500 ohms 1500欧姆  R10奥迪R10  
10,000 ohms万欧姆  R4 R4的  
11,000 ohms 11,000欧姆  R6 R6的  
22,000 ohms 22,000欧姆  R8奥迪R8  
56,000 ohms 56,000欧姆  R3 R3的  
100,000 ohms 10万欧姆  R5 R5的  
150,000 ohms 15万欧姆  R7 R7的  
370,000 ohms 37万欧姆  R9 R9的  
50K linear taper 50K的线性锥度  VR1 (and VR2 opt.) VR1的（和VR2选择。）  

Capacitors电容器
C1,C2 C1，C2的  47 uF electrolytic 47吓F电解  
C3补体C3  0.1 uF ceramic or tantalum (must not be electrolytic) 0.1吓F的陶瓷或钽（不得电解）  

Semiconductors半导体
Q1,Q2第一季度，第二季度  OP505A infrared photo detector, or equivalent OP505A红外线光检测器，或同等学历  
Q3第三季度  2N3055 NPN power transistor 2N3055 NPN功率晶体管  
LED1,2,4红灯，2,4  Red light-emitting diode红色发光二极管  
LED 3发光二极管3  Infrared LED emitter红外线LED发射器  
IC1-4 IC1的4  LM741 op amp, Radio Shack 276-007 LM741的运算放大器，Radio Shack的276-007  
D1 D1的  1N4001 (or 1N4004) silicon diode, 50v (or more) peak inverse voltage 1N4001（或1N4004）硅二极管的50V（或更多）峰值反向电压  

Miscellaneous杂项
+/- 15 vdc power supply, 1 amp + / - 15伏直流电源，1安培
9 vdc power supply, 1 amp 9伏直流电源，1安培
Breadboard wiring pad (or printed circuit board by Amadeus)面包板接线板（或印制电路板由Amadeus）
18-ga stranded wire for power 18 - ga的滞留电源线
Solid hook-up wire固体钩了丝
24-ga (or thicker) magnet wire for lifting coil 24嘎（或厚）磁铁起重卷丝
6-terminal barrier strip (2 ea.) 6端子屏障地带（2 EA中来。）
Wood for base and frame木材为基础和框架

Alternatives for the LM741 Op-Amp为替代LM741的运算放大器
I chose the LM741 op-amp out of nostalgia and convenience.我选择了LM741的运算放大器出怀旧和方便。 It was an extremely successful and common op-amp about twenty years ago.这是一个非常成功的和共同的运算放大器前约20年。

There are lots of modern choices for dual- and quad-package op-amps.有很多双核与四包运算放大器现代许多选择。 By using a package with multiple op-amps, you can reduce the number of parts and lower the cost.通过使用放大器一包有多个运算，可以减少零件数目和降低成本。 For example, you could use a single quad-package op-amp instead of four separate 741s.例如，你可以使用一个单一的四包运分离741s放大器而不是四个。 This would allow a very small printed circuit board to contain all the electronics!这将允许一个非常小的印刷电路板包含所有电子！

Different packages also provide improved parameters such as noise immunity, speed, power, etc. Here are several good choices recommended by David at XXXXXXXXXXXXXXXXX . All these are better in every parameter than the trustworthy but ancient LM741.还提供不同的包，电源改进参数，如抗噪声，速度等以下是大卫在选择好几个建议XXXXXXXXXXXXXXXXX 。凡此种种，都是在比好每一个值得信赖的参数，但古老的LM741的。

These parts are commonly available on-line suppliers such as Digikey or Future-Active .这些零件通常可以在线供应商，如Digikey或未来的主动 。

National Semiconductor 美国国家半导体  Maxim Integrated Circuits 马克西姆集成电路  Analog Devices ADI公司  
Duals对偶  LF353, LF412 LF353，LF412  MAX412 MAX412  OP270, OP271, OP249 OP270，OP271，OP249  
Quads圣城  LF347 LF347  MAX414 MAX414  OP470, OP471 OP470，OP471  
Instrumentation amp仪表放大器    AD620, AMP02 AD620，AMP02