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Description
LIU EENG400L Components KitEENG400L: Electrical and Electronic BJT and JFET Frequency Response: Resistors: 10 , 47 , 560 , 1. 0K , 3. 9K , 2*10K , 68K . Transistor: 1*2N3904 npn. Capacitors: 0. 22F, 1F, 100F, 2*1000F, 3*100pF. Operational Amplifier: Resistors: 2*100, 2*1. 0K , 3*10K , 2*100K, 470K , 2*1M. Op Amp: 1*741C op amp. Capacitors: 2* 1F. Low pass and High pass Filter: Resistors: 1. 5K, 4*8. 2K , 10K , 22K, 27K . Op Amp: 3*741C op amp. Capacitors: 4*0. 0 1F, 2*1F.
EENG400L: Electrical and Electronic
BJT and JFET Frequency Response:
- Resistors: 10 Ω, 47 Ω, 560 Ω, 1.0K Ω, 3.9K Ω, 2*10K Ω, 68K Ω.
- Transistor: 1*2N3904 npn.
- Capacitors: 0.22µF, 1µF, 100µF, 2*1000µF, 3*100pF.
Operational Amplifier:
- Resistors: 2*100Ω, 2*1.0K Ω, 3*10K Ω, 2*100KΩ, 470K Ω, 2*1MΩ.
- Op Amp: 1*741C op-amp.
- Capacitors: 2* 1µF.
Low-pass and High-pass Filter:
- Resistors: 1.5KΩ, 4*8.2K Ω, 10K Ω, 22KΩ, 27K Ω.
- Op Amp: 3*741C op-amp.
- Capacitors: 4*0.0 1µF, 2*1µF.
Colpitts and Hartley Oscillator:
- Resistors: 1.0KΩ, 2.7K Ω, 3.3K Ω, 10K Ω, 10MΩ also 100Ω potentiometer.
- Transistors: 1*2N3904 npn, 1*2N5458 n-channel JFET.
- Capacitors: 2*1000pF,0.0 1µF,3* 0.1µF.
- Inductors: 1*2µH (can be wound quickly from # 22 wire), 1*25µH.
- 1* 1MHz crystal.
Feedback Amplifier
- Transistors: 2N2219A, CD4007
- Capacitors: 0.1 uF, 2*10 uF,
- Resistors:2*10 KΩ, 100MΩ, 390 Ω, 47 KΩ,5 KΩ, 33 Ω,
Feedback - Controlled Amplifier
- Resistors: 100Ω, 270Ω, 1.0KΩ, 2.0K Ω, 47 KΩ, 100KΩ, 10K Ω also 5KΩ potentiometer.
- Transistors: 2*2N3904
- Diodes: 2*1N914.
The Phase Locked Loop:
- Resistors: 1.0KΩ, 2.0K Ω, 10K Ω also 10KΩ potentiometer.
- Transistors: 1*2N3904 npn.
- Capacitors: 1*1000pF,2200pF, 0.1µF, 1µF.
- 1*LM565 phase-locked loop
- 1*7490 decade counter
- Frequency counter
- 1* 1MHz crystal.
Frequency Response of MOS Amplifiers:
- Resistors: 2.0KΩ, 5.1K Ω, 2*10K Ω, 100KΩ.
- Transistors: VN2222LL MOSFET.
- Capacitors: 3* 10µF.
Power Amplifiers:
- Resistors: 2*22 Ω 2 W, 2*2.7KΩ, 2*10KΩ, 56 Ω, 330Ω, 3*33 KΩ, 170Ω, 4*1KΩ, 22 KΩ, 68K Ω, 5 K Ω potentiometer.
- Transistors: 1*2N3904, 1*2N3906, 2*2N2222, 1*2N2907, 2*2N3053 with heat think, 1*2SD1666, 1*2SB1133, 1*BD677.
- Diodes: 4*1N914.
- Capacitors: 0.22 µF, 47 µF, 220µF, 3* 1µF, 100µF, 2200µF, 15µF.
- Small speaker 8 or 16 Ω speaker
Linear Digital ICs
- IC; 555Timer
- Resistors: 8.2KΩ, 2 K Ω,10 K Ω potentiometer
- Capacitors: 0.01 µF, 1000pF, 1uF 2200pF
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.4 ★★★★★
Based on 18 reviews
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Product Reviews
★★★★★ 3
Its alright
Color: Black, Size: 5X-Large
True to size per the size chart. The fabric is soft but it it feels cheap to me. It attracts lint but you can brush it off easily so its not the cheapest material I've dealt with. Also, it is opaque (not see through).
There is no front/ back indicator either which is indicative of a cheap shirt in my opinion. Would be friendly for tag sensitive people (to stay positive).
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Reviewed in the United States on April 14, 2026
★★★★★ 5
Fit and colors are perfect
Color: Black, White, Apricot, Size: Large
They fit very well, I got them for my husband and he was very excited for the style & fit i am actually going to buy him another pack
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Reviewed in the United States on October 7, 2025
★★★★★ 1
Fuzzballs get wearing once
Color: Black, Size: X-Large
Very smart to wear, but the quality is terrible so after one wash the collar start fraying and fuzzballs start forming.
Very disappointing.
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Reviewed in the United States on June 2, 2026
★★★★★ 5
Size
Color: Navy Blue, Size: 3X-Large
love the shirt and they fit well for an overweight man. All the ones I got are consistent in size and you don't see that often.
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Reviewed in the United States on April 21, 2026
★★★★★ 5
Excellent style and quality for price
Color: Grey Blue, Size: Medium
Very nice quality and affordable price. Fabric is soft and smooth, very few wrinkles after washing and drying and easy to iron. Seems durable for machine washing and drying. Fits true to size.
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Reviewed in the United States on January 27, 2026