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Codebeat
  • Member for 6 years, 9 months
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10 votes
1 answer
1k views

What is the technical difference between audio CD-R(W) and data CD-R(W) discs?

8 votes
3 answers
990 views

Analyze protocol used for Futaba VFD display, 3 data pins

7 votes
2 answers
230 views

Why batteries need to be custom and smart nowadays?

6 votes
2 answers
972 views

Fake a panasonic battery to revive camera to copy photos from internal memory

6 votes
1 answer
568 views

What's the name of this nice spring contact?

5 votes
3 answers
4k views

MT3608 gets very hot only handle 1A

4 votes
1 answer
478 views

What are these coil components with three legs?

3 votes
1 answer
174 views

Any device with audio jack as UI

2 votes
3 answers
2k views

MP1584 DC/DC step down converter cause whine in audio, how to avoid?

2 votes
1 answer
21k views

JL (or maybe something else) misterious branded IC's, what is the origin? [closed]

2 votes
3 answers
1k views

Replace/refresh 7 segment display of vintage 80's clock radio

1 vote
2 answers
343 views

Can a trim-pot wiper or contact point gets oxidized over time?

1 vote
2 answers
246 views

What is the exact name of this type of transformer?

1 vote
2 answers
738 views

BA3121: Ground loop supression is great however very thin audio quality

1 vote
1 answer
4k views

Why is the usb shield always tied to ground (GND pin)?

1 vote
0 answers
109 views

What is the name of these colorful connectors?

1 vote
3 answers
3k views

Digital Optical Volume Control with LED and photoresistor (light to seperate circuits, optical pot)

1 vote
1 answer
1k views

Philips 26PF5321 backlight mod, dim backlight

1 vote
1 answer
153 views

Can a low current device be damaged by a high current device when in parallel?

1 vote
3 answers
829 views

SSD1306 I2C: Draw only changes works however on wrong position, how to set position (command)?

1 vote
3 answers
996 views

Three different schemes to amplify audio input, which one is correct?

1 vote
2 answers
144 views

What is this circular rod with wired wrapped 'coil' and ceramic capacitor?

1 vote
1 answer
469 views

Replace amplifier IC with a class D amplifier (AN7133N with TPA3116 board)

1 vote
2 answers
604 views

Vacuum Fluorescent Display: What are the benefits of an AC filament driver instead of DC?

1 vote
1 answer
105 views

-30V power supply for HTS6520

0 votes
1 answer
76 views

Feature 'logo/labels' on cases of self made devices

0 votes
1 answer
110 views

Panasonic RX-DT860 mod, how to unmute audio signal?

0 votes
4 answers
766 views

uln2003a: Switching ground of device works, however, optional USB function of device doesn't work correctly

0 votes
2 answers
3k views

Attiny85, reading analog values from PIN3, reports 654 on idle?

0 votes
1 answer
927 views

Where can I find a datasheet/info of/on this "music speakers" 35 segment LED display with 7 legs? [closed]