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Merni lanac za DIY audio
#71
Tu frekvenciju nisam imao ni sa jednim oscilatorom. Kao što sam već napisao, takve slike dobijam ako mi u signal uđe smetnja iz mreže ili neoklopljenog ispravljača u blizini, ali tada obvojnica ima frekvenciju od 50 ili 100Hz.
Međutim, frekvencija koju dobijaš odgovara dinamici AGC kola: kada okreneš potenciometar za postavljanje izlaznog nivoa, amplituda oscilacija periodično varira tokom nekoliko sekundi sve dok se ne ustali na novoj vrednosti. Frekvencija tih oscilacija kod klasičnih AGC kola sa RC filterom leži baš u opsegu koji vidiš.

Međutim, to što vidiš može da bude i varka digitalnog osciloskopa, pa bi bilo dobro da izlazni signal oscilatora proveriš AC voltmetrom - ako je nivo konstantan, onda je sve u redu.

Primećuješ li varijaciju nivoa i kada na ekranu imaš dvadesetak perioda od 1kHz?
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Messages In This Thread
Merni lanac za DIY audio - by Braca - 06-17-2017, 11:57 AM
RE: Merni lanac za DIY audio - by BeliNinja - 06-17-2017, 12:12 PM
RE: Merni lanac za DIY audio - by Braca - 06-17-2017, 12:24 PM
RE: Merni lanac za DIY audio - by Gosha - 06-19-2017, 11:56 AM
RE: Merni lanac za DIY audio - by Braca - 06-18-2017, 05:26 PM
RE: Merni lanac za DIY audio - by Gosha - 06-19-2017, 11:53 AM
RE: Merni lanac za DIY audio - by Braca - 06-19-2017, 12:35 PM
RE: Merni lanac za DIY audio - by Gosha - 06-20-2017, 07:43 AM
RE: Merni lanac za DIY audio - by mikikg - 06-19-2017, 10:26 PM
RE: Merni lanac za DIY audio - by mikikg - 06-20-2017, 01:20 AM
RE: Merni lanac za DIY audio - by Braca - 06-20-2017, 12:00 PM
RE: Merni lanac za DIY audio - by Gosha - 06-20-2017, 01:13 PM
RE: Merni lanac za DIY audio - by vladd - 06-20-2017, 02:45 PM
RE: Merni lanac za DIY audio - by Braca - 06-20-2017, 10:10 PM
RE: Merni lanac za DIY audio - by Braca - 06-22-2017, 08:58 AM
RE: Merni lanac za DIY audio - by Bocko - 06-22-2017, 01:33 PM
RE: Merni lanac za DIY audio - by Braca - 06-22-2017, 08:02 PM
RE: Merni lanac za DIY audio - by Braca - 06-25-2017, 01:13 PM
RE: Merni lanac za DIY audio - by Braca - 06-27-2017, 05:14 PM
RE: Merni lanac za DIY audio - by Braca - 07-01-2017, 01:28 PM
RE: Merni lanac za DIY audio - by vladd - 07-01-2017, 03:41 PM
RE: Merni lanac za DIY audio - by Braca - 07-01-2017, 05:33 PM
RE: Merni lanac za DIY audio - by vladd - 07-01-2017, 09:01 PM
RE: Merni lanac za DIY audio - by Braca - 07-02-2017, 12:39 PM
RE: Merni lanac za DIY audio - by Braca - 07-03-2017, 04:17 PM
RE: Merni lanac za DIY audio - by Braca - 07-03-2017, 09:20 PM
RE: Merni lanac za DIY audio - by BeliNinja - 07-03-2017, 09:26 PM
RE: Merni lanac za DIY audio - by Braca - 08-12-2017, 08:54 PM
RE: Merni lanac za DIY audio - by vladd - 08-13-2017, 07:57 AM
RE: Merni lanac za DIY audio - by Braca - 08-13-2017, 12:02 PM
RE: Merni lanac za DIY audio - by Braca - 05-04-2020, 12:10 PM
RE: Merni lanac za DIY audio - by Braca - 05-07-2020, 11:10 AM
RE: Merni lanac za DIY audio - by Braca - 05-20-2020, 05:44 PM
RE: Merni lanac za DIY audio - by gorso69 - 02-24-2021, 10:13 AM
RE: Merni lanac za DIY audio - by Braca - 02-24-2021, 03:59 PM
RE: Merni lanac za DIY audio - by gorso69 - 02-24-2021, 04:29 PM
RE: Merni lanac za DIY audio - by Braca - 02-24-2021, 05:04 PM
RE: Merni lanac za DIY audio - by gorso69 - 02-25-2021, 12:09 AM
RE: Merni lanac za DIY audio - by Braca - 02-25-2021, 08:44 AM
RE: Merni lanac za DIY audio - by gorso69 - 02-25-2021, 06:35 PM
RE: Merni lanac za DIY audio - by Braca - 02-26-2021, 10:21 AM
RE: Merni lanac za DIY audio - by gorso69 - 02-26-2021, 07:45 PM
RE: Merni lanac za DIY audio - by Braca - 02-27-2021, 08:41 AM
RE: Merni lanac za DIY audio - by gorso69 - 02-28-2021, 04:18 PM
RE: Merni lanac za DIY audio - by Braca - 03-01-2021, 07:18 PM
RE: Merni lanac za DIY audio - by gorso69 - 03-01-2021, 08:02 PM
RE: Merni lanac za DIY audio - by Gosha - 03-02-2021, 04:05 PM
RE: Merni lanac za DIY audio - by Dragan100 - 03-01-2021, 08:22 PM
RE: Merni lanac za DIY audio - by Braca - 03-02-2021, 08:51 AM
RE: Merni lanac za DIY audio - by gorso69 - 03-02-2021, 09:30 AM
RE: Merni lanac za DIY audio - by Braca - 03-02-2021, 10:45 AM
RE: Merni lanac za DIY audio - by gorso69 - 03-02-2021, 11:25 AM
RE: Merni lanac za DIY audio - by Braca - 03-02-2021, 12:52 PM
RE: Merni lanac za DIY audio - by gorso69 - 03-02-2021, 05:12 PM
RE: Merni lanac za DIY audio - by Gosha - 03-02-2021, 06:23 PM
RE: Merni lanac za DIY audio - by Braca - 03-02-2021, 07:36 PM
RE: Merni lanac za DIY audio - by gorso69 - 03-04-2021, 12:57 PM
RE: Merni lanac za DIY audio - by Gosha - 03-04-2021, 05:36 PM
RE: Merni lanac za DIY audio - by gorso69 - 03-06-2021, 03:23 PM
RE: Merni lanac za DIY audio - by Braca - 03-06-2021, 03:53 PM
RE: Merni lanac za DIY audio - by Braca - 03-09-2021, 09:51 AM
RE: Merni lanac za DIY audio - by gorso69 - 03-29-2021, 01:36 PM
RE: Merni lanac za DIY audio - by Braca - 03-29-2021, 07:43 PM
RE: Merni lanac za DIY audio - by gorso69 - 03-29-2021, 08:44 PM
RE: Merni lanac za DIY audio - by Braca - 04-02-2021, 10:40 AM
RE: Merni lanac za DIY audio - by gorso69 - 04-02-2021, 01:45 PM
RE: Merni lanac za DIY audio - by Braca - 04-02-2021, 02:38 PM
RE: Merni lanac za DIY audio - by gorso69 - 04-03-2021, 06:57 PM
RE: Merni lanac za DIY audio - by Braca - 04-04-2021, 11:12 AM
RE: Merni lanac za DIY audio - by gorso69 - 04-04-2021, 12:01 PM
RE: Merni lanac za DIY audio - by Braca - 04-04-2021, 12:47 PM
RE: Merni lanac za DIY audio - by gorso69 - 04-04-2021, 01:25 PM
RE: Merni lanac za DIY audio - by Braca - 05-22-2021, 11:54 AM
RE: Merni lanac za DIY audio - by Dragan100 - 05-26-2021, 01:11 PM
RE: Merni lanac za DIY audio - by Braca - 05-26-2021, 03:22 PM
RE: Merni lanac za DIY audio - by Braca - 05-30-2021, 01:22 PM
RE: Merni lanac za DIY audio - by gorso69 - 07-15-2021, 06:22 PM
RE: Merni lanac za DIY audio - by Braca - 07-16-2021, 01:32 PM
RE: Merni lanac za DIY audio - by gorso69 - 07-16-2021, 09:36 PM
RE: Merni lanac za DIY audio - by Braca - 07-17-2021, 03:02 PM
RE: Merni lanac za DIY audio - by gorso69 - 07-17-2021, 06:30 PM
RE: Merni lanac za DIY audio - by gorso69 - 07-27-2021, 12:46 PM
RE: Merni lanac za DIY audio - by gorso69 - 07-27-2021, 01:00 PM
RE: Merni lanac za DIY audio - by Braca - 07-27-2021, 06:48 PM
RE: Merni lanac za DIY audio - by gorso69 - 07-28-2021, 03:30 PM
RE: Merni lanac za DIY audio - by Braca - 07-29-2021, 09:19 AM
RE: Merni lanac za DIY audio - by gorso69 - 08-01-2021, 05:55 AM
RE: Merni lanac za DIY audio - by Braca - 08-01-2021, 09:52 AM
RE: Merni lanac za DIY audio - by Braca - 08-08-2021, 03:09 PM
RE: Merni lanac za DIY audio - by Braca - 08-09-2021, 11:20 AM
RE: Merni lanac za DIY audio - by Braca - 09-09-2021, 01:04 PM
RE: Merni lanac za DIY audio - by Braca - 09-16-2021, 10:09 AM
RE: Merni lanac za DIY audio - by Bocko - 09-16-2021, 03:36 PM
RE: Merni lanac za DIY audio - by Braca - 09-16-2021, 04:12 PM
RE: Merni lanac za DIY audio - by Braca - 09-17-2021, 12:10 PM
RE: Merni lanac za DIY audio - by Khadgar2007 - 09-17-2021, 09:13 PM
RE: Merni lanac za DIY audio - by Braca - 09-18-2021, 09:56 AM
RE: Merni lanac za DIY audio - by Braca - 12-24-2021, 03:56 PM
RE: Merni lanac za DIY audio - by Braca - 01-15-2022, 11:12 AM
RE: Merni lanac za DIY audio - by Braca - 01-23-2022, 07:19 PM
RE: Merni lanac za DIY audio - by Braca - 04-06-2022, 04:46 PM
RE: Merni lanac za DIY audio - by Braca - 08-14-2022, 05:46 PM
RE: Merni lanac za DIY audio - by Braca - 08-15-2022, 10:39 AM
RE: Merni lanac za DIY audio - by Vlajko - 08-16-2022, 01:29 AM
RE: Merni lanac za DIY audio - by Braca - 08-16-2022, 09:35 AM
RE: Merni lanac za DIY audio - by Braca - 09-19-2022, 05:26 PM
RE: Merni lanac za DIY audio - by ddanijel - 09-20-2022, 10:42 AM
RE: Merni lanac za DIY audio - by Dragan100 - 09-19-2022, 10:40 PM
RE: Merni lanac za DIY audio - by Аритон - 09-20-2022, 12:00 AM
RE: Merni lanac za DIY audio - by BeliNinja - 09-20-2022, 06:57 AM
RE: Merni lanac za DIY audio - by Braca - 09-20-2022, 08:33 AM
RE: Merni lanac za DIY audio - by Braca - 09-25-2022, 04:12 PM
RE: Merni lanac za DIY audio - by Dragan100 - 09-25-2022, 05:13 PM
RE: Merni lanac za DIY audio - by Braca - 10-29-2022, 11:11 AM
RE: Merni lanac za DIY audio - by Braca - 12-09-2023, 11:10 AM
RE: Merni lanac za DIY audio - by BeliNinja - 12-09-2023, 12:00 PM
RE: Merni lanac za DIY audio - by BeliNinja - 12-09-2023, 12:01 PM
RE: Merni lanac za DIY audio - by Braca - 12-09-2023, 12:57 PM
RE: Merni lanac za DIY audio - by BeliNinja - 12-09-2023, 01:05 PM
RE: Merni lanac za DIY audio - by Braca - 01-22-2024, 05:47 PM

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