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I'm still struggling to understand exactly what resonance is, but thank you for this demonstration, it was helpful

Good but may this circuit detect motion of human

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

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

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 CZcams 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 )