andrewsych
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Tüm Mesajlar
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Tüm Mesajlar

andrewsych 12/12/2019
It’s a nice compact amplifier. But there is a mistake with the silkscreen on the speaker output terminals. One channel is labeled backwards so the speaker will be out of phase. See the photo showing the correct labels. Also most Chinese Bluetooth receivers have an annoying loud start up jingle. As does this one.
Geekcreit® TPA3110 bluetooth 4.2 Dijital Amplifikatör Kartı 15Wx2 Sınıf D Stereo Güç Amplifikatörü DC 8V-26V
US$14.99 US$13.99
10
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100pcs 5mm Yuvarlak Mor UV LED Diyot Süper Parlak Su Şeffaf LED Lamba Lamba Mor Renk
US$2.99 US$8.99

Q: Wavelength? 405nm?

Soran andrewsych Açık 2019-05-07 01:48:42

BG619351543 No

2021-09-13 02:54:46 Yararlı (0)
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andrewsych 13/07/2021
My unit did not come with the carrying case as pictured in the description.
Taşınabilir Gizli Kamera Tespit Cihazı Bug Bulucu Hırsızlık Kamerası Karşıtı Alarm
US$23.99 US$28.99
0
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andrewsych 29/07/2019
A nice vintage looking analog meter. I prefer this over a digital meter. I did modify the meter movement by installing two 3mm warm white LEDs inside the meter.
YIHUA 502D 5V 2A Mini DC Güç Kaynağı, Cep Telefonu Tamiri için
US$26.99 US$32.99
1
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andrewsych 25/11/2019
I bought the dual input version. The displayed data is quite handy for one to see the charging current of the device’s battery. As the battery is close to a full charge the current slowly decreases.
UNI-T UT658 Serisi Tip Bir Type C Elektrikli USB Gerilim Güvenlik Test Cihazı Voltmetre Ampermetre Şarj Kapasitesi Ölçer Volt Akım
US$16.79 US$19.99
0
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andrewsych 30/03/2019
This is a great kit that shows how the electromagnetic field works by lightning up the supplied neon lamp when held close to the coil.
DIY Kuru Batarya Elektrikli Tesla Bobini Kit Mini Tesla Modülü Kit
US$3.79 US$4.39
2
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andrewsych 14/11/2019
Nice but.. I downloaded the driver indicated in the item description and it’s working. But I have the Retropie system loaded and the display only shows text and no graphics. The graphics are only visible through the HDMI port on my system.
Geekcreit® 3,5 inç TFT LCD Dokunmatik Ekran + Koruyucu Kılıf + Dokunmatik Kalem Kit Rasperry Pi 3B + / 3B / 2B için
US$21.99 US$26.99
0
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andrewsych 27/09/2019
What a beautiful lamp. I’m going to use it during the holidays. The glass lamp was broken during shipping. I contacted customer service and they promptly sent a replacement. Thank you.
E27 3W Vintage Edison LED Parti Noel AC85-265V için Çok Renkli Tatil Demokratik Işık Ampulü
US$9.30 US$14.23
0
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DIY Elektronik LED Spektrum Ekran Eğitim Kit Sesle Denetim
US$6.64 US$9.96

Q: I’ve built three of these kits. One worked perfectly, the next one has random noise on the display which isn’t reacting to sound, and the third has very weak microphone gain. Does anyone have a schematic of this kit?

Soran andrewsych Açık 2019-06-26 01:01:42

Tricoaster I did not have it

2019-07-02 03:47:12 Yararlı (0)
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andrewsych 03/07/2019
This is a good clock. But you have to be able to solder surface mount components. One IC has a very small pitch and you need a tiny tipped soldering iron and 0.5 mm solder.
Geekcreit® Büyük Boy Gökkuşağı Renkli Dijital Tüp DS3231 Saat DIY Kit
US$24.99 US$26.99
0
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andrewsych 29/01/2019
It’s well built and feels good to hold. The red light mode is good fo preserving one’s night vision. The main LED is pretty bright. I put a flat top 18650 inside and it fits fine.
XANES 1305 T6 + COB 1500 Lümen Katlanabilir Manyetik Kuyruk LED Muayene El Feneri
US$15.00 US$17.00
0
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andrewsych 29/01/2019
It’s worth the price.
XANES RD03 4-In-1 Fonksiyon 650nm Ballpen Kapasitif Dokunmatik Kırmızı Lazer Pointer
US$3.00 US$5.54
0
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andrewsych 22/01/2019
This lamp is pretty bright for a tritium lamp.
1 Adet Trit Viyaller Trityum Çok Renkli Kendinden Parlak 15 Yıl 3x22.5mm
US$24.99 US$29.99
0
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andrewsych 05/08/2018
Some of the LED’s burned out after a few days.
1M USB / Batarya Güçlü Aşk İmzalı Yeşil Sıcak Pembe LED Neon String Light for Düğün Birthday
US$10.27 US$10.93
0
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andrewsych 18/06/2018
I’ve just received one of these meters. It comes with a nice storage pouch and two set of probes. The backlit display is bright and easy to read. The accuracy is close enough to my Fluke meter. The low ohms scale isn’t that good for hundredths of an ohm measurements. The reading is constantly changing. But otherwise it’s a great inexpensive meter.
ANENG Q1 9999 Sayma True RMS Dijital Multimetre AC DC Gerilim Akım Direnç Kapasitans Sıcaklık Tester Otomatik/Manuel Ölçeklendirme Analog Bar Grafik ile
US$54.99 US$51.99
0
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