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Artem Kositsyn83
Estonia
เข้าร่วมเมื่อ 21 พ.ย. 2021
Channel about electronics
Email:kositsyn.datasheet@gmail.com
Email:kositsyn.datasheet@gmail.com
GVDA GD189.Finds radiation from radio transmitter and telephone
GVDA GD189 alii.pub/6y3uxz?erid=2SDnjdKQ473
มุมมอง: 189
วีดีโอ
ICS501M.This is a frequency multiplier chip up to 160MHz
มุมมอง 1.6Kหลายเดือนก่อน
ICS501M alii.pub/6xzt37?erid=2SDnjcuDNY9 Using this chip, you can multiply the frequency of the quartz resonator to 8 or to 2, for a total of nine positions. By removing the quartz resonator, you can apply a signal of say 5 MHz to pin 1 of the microcircuit and the output will be 40 MHz or another frequency.
Andonstar ad409pro.Digital microscope with video endoscope and wi-fi video transmission
มุมมอง 147หลายเดือนก่อน
Andonstar ad409pro alii.pub/6xud91?erid=2SDnjd7a9g5 This microscope can record video and photos. Via Wi-Fi through the application, you can watch video from the microscope on gadgets. You can connect an external monitor via HDMI. You can view images with a video endoscope.
How to make a flyback converter correctly
มุมมอง 1.1Kหลายเดือนก่อน
When assembling a flyback converter, be sure to connect the winding terminals correctly. If connected incorrectly, the converter will not operate efficiently and the switch transistor will heat up.
Synchronous rectifier or Schottky diode Which one is more efficient
มุมมอง 975หลายเดือนก่อน
I have two charges, one with a Schottky diode as a rectifier and the other with a special synchronous rectifier microcircuit jw7707d. I conducted tests and it is clear that the voltage drop on the synchronous rectifier will be less than on the Schottky diode. Why does this happen? The thing is that in a synchronous rectifier, instead of a diode, a MOSFET transistor is used, which is controlled ...
RF probe on diodes for testing walkie talkies
มุมมอง 2862 หลายเดือนก่อน
RF probe on diodes for testing walkie talkies
How to transmit sound using a carbon microphone
มุมมอง 2092 หลายเดือนก่อน
How to transmit sound using a carbon microphone
Reverse engineering of a high voltage generator using a single transistor
มุมมอง 2042 หลายเดือนก่อน
High voltage generator alii.pub/6x89dn?erid=2SDnjd13E2d
Electric brake for electric motor on relay and button
มุมมอง 1572 หลายเดือนก่อน
This device is needed to abruptly stop the electric motor.
How to make a short dual-band antenna for a walkie-talkie
มุมมอง 1.9K2 หลายเดือนก่อน
Nanovna alii.pub/6wxnky?erid=2SDnjbxLbCL To configure, you will need an antenna analyzer. The wire can be used with a different diameter and the winding diameter can also be used with a different one. The capacitor must be selected with the necessary characteristics: frequency, resistance and SWR of the antenna
How to make an antenna LC- filter and get rid of interference
มุมมอง 8092 หลายเดือนก่อน
Tecsun pl-990 alii.pub/6wsgxj?erid=2SDnjeK2Ek8 T50-2 ferrite alii.pub/6wsgwr?erid=2SDnje7ALVN
PAM8403. D-class amplifier. How to make an LC filter for it
มุมมอง 3253 หลายเดือนก่อน
PAM8403 alii.pub/6wr0cm?erid=2SDnjdZb4tx
Vacuum fluorescent display. How to check it with a battery
มุมมอง 7993 หลายเดือนก่อน
Vacuum fluorescent display. How to check it with a battery
How to make an adjustable power supply from a charger
มุมมอง 1.2K3 หลายเดือนก่อน
You need charging on the optocoupler and zener diode tl431. My charging is on the sd6835 chip. You need to change the resistor in the voltage divider for tl431 to a variable resistor. With it you can change the output voltage. In my case, this voltage will be from 10 Volts and above 16 Volts, I didn’t check further, since the filter capacitors are designed for 16 Volts
DSB radio transmitter at 27 MHz on sa612a chip
มุมมอง 6163 หลายเดือนก่อน
DSB radio transmitter at 27 MHz on sa612a chip
800 MHz radio transmitter from a VCR modulator on a cxa1733m chip
มุมมอง 6593 หลายเดือนก่อน
800 MHz radio transmitter from a VCR modulator on a cxa1733m chip
Multimeter with oscilloscope Tooltop et828pro.Checking operation
มุมมอง 1733 หลายเดือนก่อน
Multimeter with oscilloscope Tooltop et828pro.Checking operation
How to make a transformer for a short wave antenna
มุมมอง 3653 หลายเดือนก่อน
How to make a transformer for a short wave antenna
USB battery tester KWS-V20 with a measurement error of about 3%
มุมมอง 1843 หลายเดือนก่อน
USB battery tester KWS-V20 with a measurement error of about 3%
LC low pass filter on green ferrite rings
มุมมอง 4943 หลายเดือนก่อน
LC low pass filter on green ferrite rings
delay line in electronics. How it works
มุมมอง 2323 หลายเดือนก่อน
delay line in electronics. How it works
If you remove the protection board from 3.7V mini batteries, they become powerful
มุมมอง 2.3K4 หลายเดือนก่อน
If you remove the protection board from 3.7V mini batteries, they become powerful
Fnirsi swm-10.Portable spot welding. Checking operation
มุมมอง 3.2K4 หลายเดือนก่อน
Fnirsi swm-10.Portable spot welding. Checking operation
How to properly look for hidden wiring in the wall
มุมมอง 2294 หลายเดือนก่อน
How to properly look for hidden wiring in the wall
How to make a fluorescent light from a monitor inverter board
มุมมอง 1484 หลายเดือนก่อน
How to make a fluorescent light from a monitor inverter board
LED flashlight with buttons from a selfie lamp
มุมมอง 994 หลายเดือนก่อน
LED flashlight with buttons from a selfie lamp
Heat pipe from a computer. How it works
มุมมอง 7264 หลายเดือนก่อน
Heat pipe from a computer. How it works
Amazing! Does the ferrite rod need to be tuned to a matching frequency or does it work over a wide range? I assume it needs to be quite small
Hello! What is the resonant frequency of the tesla coil
Ye black stick kya h
What is the oscillator excitation frequency? Is it possible to provide more detailed coil parameters? I wound both coils with 1mm wire because I didn't have 1.5mm wire at the moment, and after measurements, it turned out: For a 20mm diameter and 6 turns - 990nH / Q=70 at 100kHz For a 5mm diameter and 14 turns - 349nH / Q=24 at 100kHz Unfortunately, with these coil parameters, without tuning the capacitors, the system does not oscillate, and the transistor remains open all the time. I wound new coils L1 (0.762uH, 1.8mm wire diameter, Q=35) and L2 (0.194uH, 1.8mm wire diameter, Q=12). The oscillator did not work until I significantly increased the capacitance of C1 (up to 10nF). The circuit oscillates at 3.12MHz. While the transistor heats up significantly. Does anyone have suggestions on how to optimize the circuit's performance and minimize transistor heating?
Я ей - "Фьюу", она мне - "Фьюу" Я ей - "Фьюу", она мне - "Фьюу" Потом мы вместе - "фьюу... фьюу-фьюу-фьюу" ... :)
if you adjust this schematic slightly for 6400KHz you can travel halfway around the world with a good antenna with conditions! really and truly! you can test it once you've made it by listening to the web SDRs on : SW AM around the world! ( Search Google for : Grenade Transmitter schematic ( look at the images! ) Healthy and Friendly Greetings from the Netherlands! RadioRob ( SW pirate )
Круто
Mr Artemis where is the l2 in the circuit it is not appear
Dear friend what is the frequency are emitted from this circuit
Assembly of this is beyond me but I love the idea of the rockmite I ordered an assembled off eBay hope I didn't buy a cool looking paper weight
Great really nice
Love this project ❤
Эпично : 4 слова!
How do I do it with a simple on/off switch? What do I add instead of a microphone?
Thank you very much. I have a lot of transformers and I wanted this diode.
make it as a cylinder. or rather, a belt. can get a display thats larger than the small angle separating dots. only issue is the speed it has to run at... thats the issue, isnt it? need so many dots for so many scans. then each scan occupies so much angle, and you gotta get through ALL of them at approx 20 times a second, or a full rotation... thats already 1200 RPM, regardless of size! i keep thinking of moire patterns... two grids of closely spaced holes of slightly different spacing, as they gyrate, it simply overlaps one hole at a time... the actual sequence doesnt matter, either...
I need it to serve as a preamplifier. other classic BT modules barely push the headphones, and when I start the woofer of mobile phones it is weak. The BT module with this chip is too strong for the woofer input... how to adjust IC AB to lower output power?
Very interesting work, thanks for sharing! If I understand correctly the 90 degree phasing using R4 / R5 and C5 / C10 depends on frequency, right? If you wanted to make this transmitter work on other frequencies (eg by adding a VFO) would you need to adjust the values? Or would it be close enough across most of the 80m band? Do you have resources (in Russian is fine) that you could link to explaining the theory? 73 DE KK7RWK
I haven’t tested RC at other frequencies
What is the value of VR-1 (bias adjust)? My kit didn't come with that part?
Riceve radio amatoriali?40m
hi , could you please do Dual gate FET Mixer by using this BF966 on a breadboard
Thank you so much for this video.
This is very interesting I will give a try thanks for publishing your work
Great video. Do you know the correct was to connect the alligator clips (Clip adapter) 2 pair on each side equaling 8 wires. I'm using the T48. The chip is still on the system board, by the way My experience level is 1 out of 100 Thank you
Main thing to note is matching all the pin 1 together. On the chip, there is a dot that indicates pin 1 (some chips have multiple from the molding process, but there will generally be a distinct one). On the clip, look at the wires and the red wire indicates pin 1. On the adapter board, the side the clip cable plugs into will indicate pin 1 with numbers or a dot. On the programmer, there's an arrow showing you where you should align the board and where pin 1 is. If you match all of these up, you should have the correct connection. Note some chips have a notch on the short side instead of a dot next to pin 1. In this case align your clip so pin 1 is on the side where the notch is.
@@caralynx ah ha! I appreciate you taking the time to help me. I see what you mean. I will give that a try. Thank you and God bless you
But how is just passing it trough once (1 turn around 3 uH) gonna make a difference?
20% de pertes sur ces types de transformateurs. J'ai essayé toutes les méthodes possibles et différentes les unes des autres et c'est toujours environ 20% de perdu. Le mieux est une TTLT monobande là c'est 2% max de perdu.
If I changed oscillator frequency, would I have to change coil's inductance?
Can you make one that works in 2.4ghz or 5.8 GHz or upper?
Man....man..... You are e.t.... congratulations..... Nice ...nice....
❤☘💜
It's a 50 cm counter weight, you are supposed to attach it to the ground on the antenna.
Can i use 5v and 12v source? Than at the output i will put step up for backup my router.
فلزیاب آبرومند بسازه نه اسباب بازی
BD139 vagy 2N3866-os tranzisztorral is megoldható?
Saudações!!! TKS vídeo 👏👏👏73!!!
Mine keeps saying ‘SHORT’ when trying to weld
Bravo.....cutter......mixer.....cheers
interesting, the sine is too crude.. go beyond this.. add a buffer to provide good sharp square digital clock. and maybe test the jitter etc. or furthermore add a filter to make a more sinusoidal signal..
Could you publish how the tester you use is made?
Please explain the working of this circuit Please make a video on Circuit diagram of 433 mhz receiver
Good luck from France
Hello from French ham radio, good luck for other projects ❤I do some of your project at my house
Thanks 👍
😅
Interesting chip, but in it's datasheet mentioned a more interesting variant, the ICS570
Nine different frequencies can be achieved using one quartz crystal.
best video on TH-cam to demonstrate in real world
As modulator use TL431 ( better ) and why you not block RF point : source -drain in modulator ? ( get 10nF ) And matching T2 to T4 ( pi filter )
Вау! Артёмка в англоязычные подался?))
Terima kasih anda telah berbagi ilmu yang bermanfaat.