Reflex Klystron (Basics, Structure, Working, Characteristics & Applegate diagram) Explained

แชร์
ฝัง
  • เผยแพร่เมื่อ 21 พ.ย. 2024

ความคิดเห็น • 129

  • @EngineeringFunda
    @EngineeringFunda  ปีที่แล้ว

    *🔥All Premium Courses Link of Engineering Funda🔥*
    docs.google.com/spreadsheets/d/1LeLxZPGiMB_ZDZggbZp3P7fK516pXYhVgZA__djNkWM/edit#gid=0

  • @EngineeringFunda
    @EngineeringFunda  2 ปีที่แล้ว +4

    ⬇ *Premium Courses of Engineering Funda* ⬇
    ✅ *༺🚩ARM Processor 🚩༻* - th-cam.com/play/PLgwJf8NK-2e7nFEozQhZDZDSm09SwqbGP.html
    ✅ *༺🚩Microprocessor 8085 🚩༻* - th-cam.com/play/PLgwJf8NK-2e5vHwmowy_kGtjq9Ih0FzwN.html
    ✅ *༺🚩Microprocessor 8086 🚩༻* - th-cam.com/play/PLgwJf8NK-2e4oAeDid0hwuiol_RJdscrp.html
    ✅ *༺🚩AVR Microcontroller 🚩༻* - th-cam.com/play/PLgwJf8NK-2e55CdbY_WnY6pejPHoojCkJ.html
    ✅ *༺🚩8051 Microcontroller 🚩༻* - th-cam.com/play/PLgwJf8NK-2e49i6neo70aGtFLvKeZ3IQD.html
    ✅ *༺🚩80386 & Pentium Processor 🚩༻* - th-cam.com/play/PLgwJf8NK-2e7f4yPj6AbrUoburKwX0fFA.html
    ✅ *༺🚩Embedded System 🚩༻* - th-cam.com/play/PLgwJf8NK-2e5xvXygtghfi-tzyeACx7CO.html
    ✅ *༺🚩VLSI 🚩༻* - th-cam.com/play/PLgwJf8NK-2e6au9bX9P_bA3ywxqigCsaC.html
    ✅ *༺🚩Digital Electronics 🚩༻* - th-cam.com/play/PLgwJf8NK-2e7nYSG31YWEUfwgAp2uIOBY.html
    ✅ *༺🚩Network Theory 🚩༻* - th-cam.com/play/PLgwJf8NK-2e7AccPu8mUhhsJNol9uIKTJ.html
    ✅ *༺🚩Control Engineering 🚩༻* - th-cam.com/play/PLgwJf8NK-2e43et6qbo4IqYSJCv-6kN90.html
    ✅ *༺🚩Electromagnetic Theory 🚩༻* - th-cam.com/play/PLgwJf8NK-2e4I_YltJja47CwZJkzNWK89.html
    ✅ *༺🚩Power Electronics 🚩༻* - th-cam.com/play/PLgwJf8NK-2e5Hnu82T1CYLZ8kbZs4Jx8x.html
    ✅ *༺🚩Basic Electronics 🚩༻* - th-cam.com/play/PLgwJf8NK-2e5G05PTgyTTSVyzTOKRfmTn.html
    ✅ *༺🚩Signal and System 🚩༻* - th-cam.com/play/PLgwJf8NK-2e7VdLw7PebRTcZXb_4nKeVh.html
    ✅ *༺🚩Optical Communication 🚩༻* - th-cam.com/play/PLgwJf8NK-2e7CDIWsh61eItP9iRw1EIQc.html
    ✅ *༺🚩Analog Communication 🚩༻* - th-cam.com/play/PLgwJf8NK-2e7uyUYrpgUUQowmRuKxRdwp.html
    ✅ *༺🚩Digital Communication 🚩༻* - th-cam.com/play/PLgwJf8NK-2e5PngHbdEadEun5XPvnn00N.html
    ✅ *༺🚩Antennas & wave Propagation 🚩༻* - th-cam.com/play/PLgwJf8NK-2e7tzLIDL4aXUbtRFY3ykmkT.html
    ✅ *༺🚩Microwave Engineering 🚩༻* - th-cam.com/play/PLgwJf8NK-2e6A4Mtxud6xPHE1UecxWsHW.html
    ✅ *༺🚩RADAR Engineering 🚩༻* - th-cam.com/play/PLgwJf8NK-2e4KmA52Jw3-JhDhFIDQZ9Bv.html
    ✅ *༺🚩Audio Video System / TV 🚩༻* - th-cam.com/play/PLgwJf8NK-2e7EJcPI0P_DMw49ufTYfuOz.html
    ✅ *༺🚩Engineering Drawing/ Graphics 🚩༻* - th-cam.com/play/PLgwJf8NK-2e79xuABrIQeXYlGuuickEz7.html
    ✅ *༺🚩Basic Mechanical Engineering 🚩༻* - th-cam.com/play/PLgwJf8NK-2e7Fe4vAYDaL0bpseGNhc9on.html
    ✅ *༺🚩Mechanics of Solid 🚩༻* - th-cam.com/play/PLgwJf8NK-2e53xcLCS7ay2iLRolNxyxFk.html
    ✅ *༺🚩Theory of Computation 🚩༻* - th-cam.com/play/PLgwJf8NK-2e6GfXdwqWX5YmszV2KGv-yl.html
    ✅ *༺🚩Java Programming 🚩༻* - th-cam.com/play/PLgwJf8NK-2e5BeN1WTXg1ENPtkRR3SfCI.html
    ✅ *༺🚩Python Programming 🚩༻* - th-cam.com/play/PLgwJf8NK-2e5pY2eB-Lht2_CerQue0Xo4.html
    ✅ *༺🚩Placement Test series on C 🚩༻* - th-cam.com/play/PLgwJf8NK-2e5ovLgoJkv0Pn58UrucrTPt.html
    ✅ *༺ Please Share it with your friends to support us. ༻*
    👉 *༺ You can also support us by joining us ༻* : th-cam.com/channels/dlnqMpRrMcClK2fT6z8EEw.htmljoin

  • @moodankitha6510
    @moodankitha6510 3 ปีที่แล้ว +2

    Very good explanation sir
    Tq very much sir

    • @EngineeringFunda
      @EngineeringFunda  3 ปีที่แล้ว

      Your positive comments motivates me, my goal is to create largest community of engineers in entire globe, so please help me for that by sharing this lecture series(playlist) with your friends in social media (watsapp, telegram etc). Thanks and welcome 🙏

  • @pkv4407
    @pkv4407 7 ปีที่แล้ว +2

    You saved me before my exams !!!!
    Thank you so much and god bless ! 😄

    • @EngineeringFunda
      @EngineeringFunda  7 ปีที่แล้ว +1

      +Priyanka Krishnamurty : :) your welcome

    • @avinashfagnani7646
      @avinashfagnani7646 7 ปีที่แล้ว

      you saved me, I puri you, together we sev puried in exam! god bless !

    • @prashantkasana9790
      @prashantkasana9790 2 ปีที่แล้ว

      @Priyanka Krishnamurty How much did you score after completing the playlist in exams ??
      How much marks can I expect tomorrow is my exam and I have reached upto this topic ?

  • @piriyaashwini4489
    @piriyaashwini4489 6 ปีที่แล้ว +12

    Great explanation it helped me a lot sir thank you so much sir

  • @ankushathawale3473
    @ankushathawale3473 7 หลายเดือนก่อน +1

    Sir I would suggest you To Explain Application First and then Dwell into Details like working structure and characteristics....

  • @shiwanichowdhary8309
    @shiwanichowdhary8309 6 ปีที่แล้ว +3

    great work sir...u r d savior..keep progressing

  • @Meghasyamchavali
    @Meghasyamchavali 3 ปีที่แล้ว +1

    Sir it's very useful thank u so much

  • @sonalighoshal3212
    @sonalighoshal3212 6 ปีที่แล้ว +2

    Explanation is best
    Thank you Sir

  • @s.deepika5288
    @s.deepika5288 4 ปีที่แล้ว +47

    The Applegate diagram that you have drawn intial is correct after your recorrection it is wrong.because in ur recorrected diagram ee(early electron is travelling small distance compared to er and el)ee have to travel more time in repeller space due to low velocity for early electron..other than this all is excellent..

    • @suchetamatai
      @suchetamatai 2 ปีที่แล้ว +1

      True

    • @GadgetHunk
      @GadgetHunk 2 ปีที่แล้ว

      Right

    • @Godl_Damon
      @Godl_Damon ปีที่แล้ว

      Yes, in my book it's same as you explained

  • @harshalmankar4372
    @harshalmankar4372 7 ปีที่แล้ว +1

    Thanks 🤗🤗🤗🤗 it was really helpful playlist for my exams...thank you

  • @m.p6785
    @m.p6785 6 ปีที่แล้ว +1

    U r really good teacher

  • @yashasvirallabandi9070
    @yashasvirallabandi9070 2 ปีที่แล้ว

    Very good explanation, thank you sir

    • @EngineeringFunda
      @EngineeringFunda  2 ปีที่แล้ว

      All the subjects playlist of Engineering Funda is available in comment section. Share it with your friends to support us.
      Your positive comments motivates me and person like me get boosted by my students feedback. Thanks and welcome 🙏

  • @viveksah330
    @viveksah330 5 ปีที่แล้ว +2

    Your explanation is very nice.....thanks for making this video...it clears all of my confusions

  • @potalaramasindhusha9031
    @potalaramasindhusha9031 ปีที่แล้ว +1

    🔥grt content

    • @EngineeringFunda
      @EngineeringFunda  ปีที่แล้ว

      Your Appreciations, care and share matters a lot to me. #EnginneringLove.
      All the subjects playlist of Engineering Funda is available in comment section. Share it with your friends to support us.
      Your positive comments motivates me and person like me get boosted by my students feedback. Thanks and welcome 🙏

  • @srinivasseo9818
    @srinivasseo9818 3 ปีที่แล้ว +2

    Loved it sir

    • @EngineeringFunda
      @EngineeringFunda  3 ปีที่แล้ว +1

      Your positive comments motivates me, my goal is to create largest community of engineers in entire globe, so please help me for that by sharing this lecture series(playlist) with your friends in social media (watsapp, telegram etc). Thanks and welcome 🙏

  • @nallisettycharitha2915
    @nallisettycharitha2915 7 ปีที่แล้ว +1

    explained very clearly,and have full clarity,thank u

  • @aiswaryaaravindakshan7506
    @aiswaryaaravindakshan7506 5 ปีที่แล้ว +2

    Thank u so much sir.easy to understand.it help me a lot

  • @sudhakarsri9249
    @sudhakarsri9249 6 ปีที่แล้ว +17

    Sir kindly upload the calculation of efficiency of reflex klystron derivation. Day after tomorrow we have exams. It's a request sir. Your videos are very helpful.

  • @deep98820
    @deep98820 5 ปีที่แล้ว +2

    really loved the lecture

  • @nacervan7167
    @nacervan7167 7 ปีที่แล้ว +1

    Good job brother u saved my exam thanks

  • @vireshmohan7554
    @vireshmohan7554 6 ปีที่แล้ว +2

    Keep up the good work SIr.

  • @devendrasuranje6482
    @devendrasuranje6482 7 ปีที่แล้ว

    Thank you sir because of you my paper was very simple fir me thank you sir...Once again..😇🙏

    • @EngineeringFunda
      @EngineeringFunda  7 ปีที่แล้ว

      +devendra suranje : your welcome

    • @saisandhyadinchetty7141
      @saisandhyadinchetty7141 2 ปีที่แล้ว

      Can you please tell me
      How was your preparation plan for microwave subject

  • @shabbirgovernor
    @shabbirgovernor 7 ปีที่แล้ว

    U r a life saver mannnnnnnn!

  • @shubhamgupta8902
    @shubhamgupta8902 5 ปีที่แล้ว +1

    Very nice video sir please upload more videos regarding more subjects in ECE course....thanku.

  • @rejoicethomas5553
    @rejoicethomas5553 5 ปีที่แล้ว

    Great job sir...

  • @MunyokiKilyungi
    @MunyokiKilyungi 6 ปีที่แล้ว

    Thanks for this dude!

  • @poojajahagirdar9523
    @poojajahagirdar9523 6 ปีที่แล้ว +4

    Can you please upload explanations for topics as follows:
    1) O & M type classification of microwave tubes, re-entrant cavity ,velocity modulation.
    2) Cylindrical wave magnetron
    3) microwave applications like microwave heating, thickness and moisture measurement, microwave diathermy.
    4) Microwave measurement devices such as slotted line , tunable detector, VSWR meter, power meter and their working principles.
    5) microwave measurement techniques to measure S-paramter, frequency ,power attenuation ,phase shift ,VSWR , impedance .
    6) Radiation hazards and protection.
    I am a student in my final year of electronics and tele-communication engineering

    • @heman748
      @heman748 11 หลายเดือนก่อน +1

      Heyy, May I know where are you now? I mean have you got a good job somewhere?

  • @rdecorevents9968
    @rdecorevents9968 5 ปีที่แล้ว

    good

  • @deepakjosyula7637
    @deepakjosyula7637 7 ปีที่แล้ว

    tq sir it was much easy to understand .. :)

  • @1shri
    @1shri 5 ปีที่แล้ว

    Best Video!!!!

  • @kushaalbegari8234
    @kushaalbegari8234 5 ปีที่แล้ว +10

    How come early electron has more time to travel towards repeller electrode in REFLEX KLYSTRON STRUCTURE

    • @arjunfitness3836
      @arjunfitness3836 5 ปีที่แล้ว +5

      We provide +ve voltage to late electron and -ve voltage to early electron that's why early electron move slow and late electron move fast so we can able to bunch all three electrons at the same time

    • @anandprateekbaranwal8275
      @anandprateekbaranwal8275 3 ปีที่แล้ว +1

      @@arjunfitness3836 actually you are saying the opposite, we provide +ve voltage to early elect. in the anode cavity which accelerates it more so it travels further than the ref. and late elect. similarly we provide -ve voltage to late elect. in the anode cavity which deaccelerates it and thus it travels less than ref. and early elect. so it travels less dist.

  • @anuragsaiharirachamalla4578
    @anuragsaiharirachamalla4578 5 ปีที่แล้ว +1

    Thanks for uploading :)

  • @venkatajagadeesh1067
    @venkatajagadeesh1067 4 ปีที่แล้ว +2

    Need cavity oscillator basics, circuit designing and it's implementation in multisim if possible

    • @venkatajagadeesh1067
      @venkatajagadeesh1067 3 ปีที่แล้ว

      @Maddux Grayson Hahaha I no longer need to know about oscillator as I passed out... Good thing that...

  • @ramfactsintelugu
    @ramfactsintelugu 4 ปีที่แล้ว +1

    Thanks 👍

    • @EngineeringFunda
      @EngineeringFunda  4 ปีที่แล้ว

      Love and happiness of students is my ultimate goal, God bless you 🙏, keep learning and keep progressing.

  • @dvrblacktech
    @dvrblacktech 3 ปีที่แล้ว +3

    10:15 Timestamp
    How to set the modes of propagation of electrons in this reflex clystron? What is actually the "mode"? and what is the meaning of choosing mode i.e "n" as 1,2,3... etc?

    • @shyno65
      @shyno65 11 หลายเดือนก่อน

      Its like 3 different car which start moving with different time with different speed to meet a certain point

  • @bhanuprakash-nv8en
    @bhanuprakash-nv8en 6 ปีที่แล้ว +4

    Early electron has high velocity when compared to remaining

    • @omsingharjit
      @omsingharjit 5 ปีที่แล้ว +1

      why Early electron has high velocity ?

  • @dvrblacktech
    @dvrblacktech 3 ปีที่แล้ว +2

    6:22 Timestamp
    All electrons are emitted by an electron gun so, how that early and late electrons are classified?
    How do we tell early electrons lesser velocity and late electrons higher velocity? (because I thought like all electrons are emitting from the electron gun and the distance between the electron gun and the repeller electrode remains constant... )

    • @santoshsanjeev1418
      @santoshsanjeev1418 3 ปีที่แล้ว +2

      I guess we will be giving some RF input to the reflex klystron to work v as an oscillator, so the waves having polarity in direction increases speed of early electrons and the reverse electric field reduces the speed.

  • @shubhamnayak9369
    @shubhamnayak9369 6 ปีที่แล้ว +1

    Why reflex klystron characteristic is like the diagram you have shown. Plzz explain how we got that diagram. This will help us to elaborate the answer in exams

  • @anandreddy2354
    @anandreddy2354 3 ปีที่แล้ว

    vl

  • @Priya-nb6gm
    @Priya-nb6gm 6 ปีที่แล้ว +1

    Reflex klystron is used as an oscillator only or as amplifier also or both?

  • @barotsantosh
    @barotsantosh 7 ปีที่แล้ว

    Thank you sir

  • @MrPprasanna
    @MrPprasanna 4 ปีที่แล้ว +1

    Please add derivation part also sir

  • @saimohan7062
    @saimohan7062 6 ปีที่แล้ว +1

    Please try to increase the sound because when im trying to watch suddenly ads are playing with much sound and that really so horrible

    • @EngineeringFunda
      @EngineeringFunda  6 ปีที่แล้ว +1

      I have recorded that video with law quality camera now in new videos i have good camera , so in new subjects this problem will not come.

    • @saimohan7062
      @saimohan7062 6 ปีที่แล้ว +1

      Engineering Funda thank you sir for understanding n reply

  • @AkhileshKumar-un6ek
    @AkhileshKumar-un6ek 6 ปีที่แล้ว +2

    You are doing grt job.. but this video lecture is too much confusing... you are doing some mistakes in applegate diagram explanation ... plz correct it and upload again.... thank you

    • @EngineeringFunda
      @EngineeringFunda  6 ปีที่แล้ว

      See it again, I think it's proper. So watch till end.

  • @shubhamnayak9369
    @shubhamnayak9369 6 ปีที่แล้ว +2

    I can't understand why bunching of electron generates RF wave?
    How I can interpret Applegate diagram.
    What operating characteristics shows in diagram?

    • @EngineeringFunda
      @EngineeringFunda  6 ปีที่แล้ว

      +Shubham Nayak : bunching of electrons amplifies signal and regarding RF signal I think you should learn Maxwell's equations.

    • @nijandangal1687
      @nijandangal1687 5 ปีที่แล้ว +3

      @@EngineeringFunda How will the early electron have more time to travel and less repulsion than the LATE electron??
      Dont they all travel the same distance in same time since the drift space is same and there is continuous generation of electron??
      Is it due to velocity modulation OR transit time effect?? Would you please explain how does it work that way.

  • @alkeshgandhi4350
    @alkeshgandhi4350 3 ปีที่แล้ว +1

    Please check the position of e(e), e(r) and e(l) in the AppleGate Diagram.

  • @RohitSharma-hw4nm
    @RohitSharma-hw4nm 3 ปีที่แล้ว

    Plz tell about reference books

  • @nishamohamed7151
    @nishamohamed7151 5 ปีที่แล้ว +1

    How should we give an alternative voltage to the gap,Through the V(A) {Voltage applied to the cavity}?

  • @revanthkumark7421
    @revanthkumark7421 6 ปีที่แล้ว +1

    velocity modulation derivation sir?

  • @1-minutetips109
    @1-minutetips109 6 ปีที่แล้ว

    Are there any modes in reflex klystron?

  • @futuremotivation7146
    @futuremotivation7146 5 ปีที่แล้ว

    Why bunching ? How it generates microwave

  • @abhishekkashyap221
    @abhishekkashyap221 5 ปีที่แล้ว

    How can you connect electron gun to both positive and negative voltage.

    • @aniketdeshmukh6080
      @aniketdeshmukh6080 5 ปีที่แล้ว

      Yess I have same doubt becazz in the diagram cavity is connected to dc suppy but in explanation it looks like ac signal

  • @fluteshiva4279
    @fluteshiva4279 3 ปีที่แล้ว +1

    🙏🙏🙏

    • @EngineeringFunda
      @EngineeringFunda  3 ปีที่แล้ว +1

      Your positive comments motivates me, my goal is to create largest community of engineers in entire globe, so please help me for that by sharing this lecture series(playlist) with your friends in social media (watsapp, telegram etc). Thanks and welcome 🙏

    • @fluteshiva4279
      @fluteshiva4279 3 ปีที่แล้ว

      @@EngineeringFunda sure sir

  • @Ironman-je8dw
    @Ironman-je8dw 2 ปีที่แล้ว

    It's bigg buss

  • @AshwiniPatil-st2kx
    @AshwiniPatil-st2kx 5 ปีที่แล้ว +1

    Which reference book do you refer for this course?

  • @abhipundir9714
    @abhipundir9714 6 ปีที่แล้ว

    Thanx u so much sir
    But i dont know why that phone rings in every video it distracts me lol

    • @KnowledgeAmplifier1
      @KnowledgeAmplifier1 6 ปีที่แล้ว

      fitness freak dude , it distracts me too😓😓

  • @GenwinReview5m
    @GenwinReview5m 6 ปีที่แล้ว +1

    Sirrrr early e must take more time

    • @EngineeringFunda
      @EngineeringFunda  6 ปีที่แล้ว

      Yes, early electrons take more time with less velocity so to have electrons bunching that happens and that is Velocity modulation

    • @luckii__official870
      @luckii__official870 6 ปีที่แล้ว

      but how it will happen sir, can u plz explain how velocity modulation works in it......

  • @saikumar-vy1rt
    @saikumar-vy1rt 6 ปีที่แล้ว

    Sir, I don't know pen r using in xam are WRIGHT R WRONG
    plz tel me sir

    • @EngineeringFunda
      @EngineeringFunda  6 ปีที่แล้ว

      Which pen?

    • @nijandangal1687
      @nijandangal1687 5 ปีที่แล้ว

      @@EngineeringFunda How will the early electron have more time to travel and less repulsion than the LATE electron??
      Dont they all travel the same distance in same time since the drift space is same and there is continuous generation of electron??
      Is it due to velocity modulation OR transit time effect?? Would you please explain how does it work that way.

  • @parthimano608
    @parthimano608 4 ปีที่แล้ว

    How microwave is generated

  • @Meander_Man
    @Meander_Man 3 ปีที่แล้ว

    Time pedior nii sir time period bolie

  • @mohammadshariyatabassum7210
    @mohammadshariyatabassum7210 5 ปีที่แล้ว

    Sir plz kindly upload the derivation part

  • @chabgeworld47r
    @chabgeworld47r ปีที่แล้ว

    Sir aapki shakal rishabh k papa ki tarah hai

  • @vedantmankar4110
    @vedantmankar4110 4 ปีที่แล้ว

    Sir can u pls provide some notes for this

    • @EngineeringFunda
      @EngineeringFunda  4 ปีที่แล้ว

      Go through my android application engineering funda where you will get all materials, i have remodified it.

  • @viraltrends9900
    @viraltrends9900 6 ปีที่แล้ว

    plz reduce number of ads plz

  • @loki23466
    @loki23466 5 ปีที่แล้ว

    pale jo likha tha vah ahi tha sir

  • @shubhamgwari2835
    @shubhamgwari2835 6 ปีที่แล้ว

    You are reverse your oder of late or earlier electron

  • @jhonshob196
    @jhonshob196 3 ปีที่แล้ว

    Just try it in 3d plz plz sir

  • @siva13881
    @siva13881 3 ปีที่แล้ว

    Explanation is not correct, before reference electron, we should take early electron based on time axis.

  • @furquannaser3549
    @furquannaser3549 6 ปีที่แล้ว +5

    Time pedior.

    • @EngineeringFunda
      @EngineeringFunda  6 ปีที่แล้ว +4

      Now a days, i see soo many students are preparing for IELTS.

    • @CayenneGT
      @CayenneGT 5 ปีที่แล้ว

      @@EngineeringFunda 😂😂😂

  • @nikhilsrivastava41
    @nikhilsrivastava41 5 ปีที่แล้ว +1

    itna adds kyu daal rakhe hai...koi nhi dekhega videos

  • @Ironman-je8dw
    @Ironman-je8dw 2 ปีที่แล้ว

    Nothing is there

  • @rupalikumre6579
    @rupalikumre6579 6 ปีที่แล้ว

    Sir derivation plzz

  • @066_le_masrat_jan_ece7
    @066_le_masrat_jan_ece7 5 ปีที่แล้ว

    Sir plz Hindi language Mai b banawo

  • @sreeramreddy151
    @sreeramreddy151 6 ปีที่แล้ว

    Apple gate diagram is wrong

  • @ytaryansing333
    @ytaryansing333 4 ปีที่แล้ว

    BAKWAS

  • @FeelTheMusic03737
    @FeelTheMusic03737 2 ปีที่แล้ว +1

    thank you sir

    • @EngineeringFunda
      @EngineeringFunda  2 ปีที่แล้ว

      All the subjects playlist of Engineering Funda is available in comment section. Share it with your friends to support us.
      Your positive comments motivates me and person like me get boosted by my students feedback. Thanks and welcome 🙏