Prelude to Oscillators

[@electronichome1153]

Another greets from Switzerland, excellent tutorials! I am really tired of all these SBC, SoC, AI and Linux stuffs in the last 10 yrs. This is the real electronics for the experts!

[@Vocademy-Electronics-Tech]

Wow, thank you. I'm really no expert; I didn't train as an engineer (maybe for the better) and I'm not much of a mathematician. However, neither was Michael Faraday (he only understood basic algebra), so I guess I'm in good company. Faraday made his discoveries by visualization and intuition; he let others develop the mathematics to quantify his theories. I have the same "handicap." I can't use math as a crutch to fool myself into thinking I understand electronics. I have to visualize the circuits and figure out what makes them tick. Then I can explain them without just throwing math at you. I'm glad so many people find that helpful. Thanks again.

[@NeilsNonsense]

It's actually reassuring that even the experts need to get their head around oscillator circuits! Your Q&A video on the astable multivibrator was superb and helped me a lot, so looking forward to more oscillation! Thanks!

[@VinceTuffs]

Fantastic stuff.. thank you. Well done

[@shahedhossainsyedmahmud743]

❤ Awesome explanation and demonstration.

[@carlgradolph9676]

I have struggled through numerous textbook explanations of oscillator design and function and always felt like I wasn't quite "getting it". Thanks to your presentation of the subject, I see where standard engineers' models have to cut corners to focus on the practical while doing a bit of hand-waving to skip over the abstract. We know that oscillators work--designs can be found easily. But the question of why is another matter. Looking forward to your always-helpful, insightful explanations.

[@terryhayward7905]

A simple explanation of how an oscillator works, point a microphone at a speaker, the speaker will move in and out at an audio frequency, the microphone will pick that up and feed it back to the amplifier and back out of the speaker. Positive feedback.

[@charlesschneiter5159]

Looking very much forward to your lecture on oscillators! Greetings from Switzerland! Charles

[@1rstcar]

Very interesting, this is also something I struggle to understand, but am sure your upcoming videos on oscillators will help big deal. Thanks always.

[@THEOFFGRIDMOUNTAINHOMESTEAD]

Always appreciate your videos! 👍

[@GoOgled_it_4u]

thanks sir, at last one guy gives intuitive explanations in whole youtube

[@shreyasvedant1]

I was eagerly waiting for videos on Oscillators and how actually tank circuit creates oscillation with DC source. Thank you are looking in this matter.🙏🙏🙏

[@Vocademy-Electronics-Tech]

If you put a battery across a tank circuit, then remove it, the tank circuit will oscillate at its resonant frequency for three or four cycles. The trick is to connect it to an amplifier and feed the output of that amplifier back into the tank circuit to keep it going. I will probably get into oscillators with tank circuits (Armstrong, Hartley and Colpitts) in the third or fourth video.

[@shreyasvedant1]

@@Vocademy-Electronics-Tech Sir , That is not problem to visualize and understand. The problem arise when that tank circuit we connect in between DC source and Collector of the transistor (I have seen it somewhere in Hartley or Collpits Oscillator design). In that case tank circuit is continuously connected to battery source then how it oscillate? because oscillation start when we disconnect battery and here we are keeping it continuously connected to battery source which is ON all time. (Or I possibly am wrongly understanding this that why I was waiting eagerly this kind of lecture on Oscillator from some knowledgeable person🙂🙂🙂)

[@stargazer7644]

You need brighter studio lights so your camera can use a higher f-ratio (smaller aperture) to increase your depth of field so both your board and your face are in focus.

[@666sajad]

😍😍😍😍😍😍🥰🥰🥰🥰

[@Unglue]

Thank you for these videos! Im very weird about how fast or slow people talk or how much there voices annoy me (If I find someones voice annoying I won't listen at all) and your videos are about perfect in your pacing/voice.

[@ikaitg]

If you ever do a colpitts oscillator, one thing that I really have a hard time wrapping my head around is, how come the two capacitors in the tank are considered in series even though they are tapped. Thanks for your content always

[@petopeter4832]

perfect,love this teacher

[@dhankthapamagar3389]

Amazing Class!

[@666sajad]

😍😍😍😍😍🥰🥰🥰🥰🥰🥰🥰🥰🥰

[@باباابي-ش1ض]

👍🌹

[@klmkt4339]

Waiting uncle. Because many times i tried to understand a vibrator but failed because the input itself carry a waveform. Waiting in India to understand from you

[@Vocademy-Electronics-Tech]

I have a rather long explanation of the astable multivibrator here: kzbin.info/www/bejne/b5a1iH6ebLSCftk. However, I'm going to revisit it in the oscillator series and elaborate on the alternate explanation I mentioned in this video.

[@flipvansaksen774]

You are my hero

[@daffyd5489]

Is that an inductor on the emitter of the 1st transistor? Why is it there please?

[@stargazer7644]

That's an incandescent light bulb. It's a resistor with a negative temperature coefficient so it increases resistance with current. It's purpose is to increase negative feedback to a balancing point to stabilize the circuit so it oscillates with a sinusoidal output. Lookup Wein bridge oscillator on wikipedia. Also please include timestamps in your questions so folks know what part of the video your question applies to.

[@TheVendan]

I sir i created the switched regulated with your lecturing design,i have lot doubts could you please clarify that.how can I send the circuit simulation to you, eagerly waiting for the reply

[@LISANCACOM]

Thanks.

[@Amerikanin2numarali_ustasi]

A++

[@AL-kn4yx]

Thanks for this series. Can you also make a video on Basic Transistor LC Oscillator Circuit?

[@Vocademy-Electronics-Tech]

I haven't decided where in the series I will cover phase shift and relaxation oscillators, but I will definitely cover them.

[@AL-kn4yx]

@@Vocademy-Electronics-Tech Will you be also covering Hartley & Colpitts Oscillators?

[@андрій-ч7ч6ы]

how SMPS works?

[@BlAcKpHrAcK]

Holy Smok3!! ..sounds fine, during the mono test. 2120 South Michigan Avenue (Mono) kzbin.info/www/bejne/rKGsh2mdfqaCodksi=fJ9v0ksKtAMa1qKV Not bad, eye-balling led to an audible 5 kcps, low-pass shelf-filter ..first try, no turns more nor less. I actually wanted a bass speaker ..now I can coil more turns for an even lower-pass filter. The 5 kcps and below being supported, makes it feel like there is a hidden helper speaker ..good news. I remember unwinding three turns from a thirty-turn coil, to allow a vintage amplifier to pass more high-frequencies ..handy information now that I am hand-winding choke-coils for my portable stereo HIFI monitor ..I was looking at it before trying, thinking the test choke is already likely within the desired range of spectrum limiting and roll-off sought. Took me several days of picking it up and doing a little more, for it to be the correct gauge and nearly the correct number of turns ..might have to remove turns or add some, to choke for three-way setup, high, mid, low frequency. Starting with two-way, the speaker/ amp/ battery combo is very clear ..but comes with no vintage-style choke, to beef up the signal ..mo ride.