Sfter MOD with ''real'' OP ICs , let's have frequency test and gain in/out levels test..That proves this little 3 band equalizer turns to be a reliable piece of electronic. Hope it's useful..like and subscribe!
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https://www.youtube.com/watch?v=mKLyv_tPWno
Using multimeter to check a McGill LMR400 cable and antenna. Low resistance and cable test. Part1
Need a Smart multimeter for measuring cables and antennas? Purchase Kaiweets with discount here:
https://kaiweets.com/products/kaiweets-st600y-digital-smart-multimeter-6000-counts-true-rms?sca_ref=1585756.RPFARYWfnv
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https://www.youtube.com/watch?v=Kuj7SQiJcmw
How to diagnose and repair a Li-ion Li-Po solar charge controller KYZ-30A, for solar production replace burned transistors and have a better heat sink.
For final tests watch part 5 !
00:00 Description
00: 36 Diagnoses
03:20 Replace damaged parts
04:14 Building a better heat sink
05:25 The fan install
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https://www.youtube.com/watch?v=qdnx-RMrMyw
ASUS motherboard connected to Yamaha HS studio monitors is very noisy!
Even moving the mouse makes cracks...A simple way to get rid off most of the static, noise, cracks ..all the artifacts in your audio chain.Now sounds like professional studio gears.
00:00 intro..listen the noise
00:51 introduce The Noise!!!
03:02 Evrika !
03:30 let's find an explanation
05:47 last check before fixing
06:00 magic tape solved
08:00 testing the new sound environment
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https://www.youtube.com/watch?v=MCTzoFA2D50
Testing cheap multimeters Bside AMD02, Bside AMC03,M890G vs UNI-T UT71D and Fnirsi 1C15 oscilloscope with sinusoidal and square waves different frequncies.Amazing good results with a 19 bucks auto-range multimeter, Feel free to comment, like and subscribe.
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https://www.youtube.com/watch?v=mr3saRP_uaY
Classic analog oven, fritteuse, fryer, pancake, french fries machines and so many other cooking devices thermostat 50-250 degrees Celsius got fixed and tested.
Warning ! Live voltage involved!
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https://www.youtube.com/watch?v=a3P7MlPpVyI
Many audio mixers like Behringer Xenyx, Phonic, Alto and so, are using a MINI DIN 3 poles power plug, that makes the contact unstable and prone to accidental disconnect follows a huge boom in whole audio chain. I found replacing with a microphone 3 poles connector with a secure screw makes it reliable and close to professional gears.
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https://www.youtube.com/watch?v=qS0csKeR4Ho