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Merni lanac za DIY audio
#48
Gorane, sa vrednostima komponenata koje si naveo tvoj filter ima frekv. opseg od 995 do 1005Hz, pa nije u stanju da potisne signal od 1008Hz, kako ga meri osciloskop.
Potenciometar koji koristiš može samo grubo da podesi filter - za fino podešavanje je potreban trimer sa 20 obrtaja, koji onda daje promenu frekvencije od 0,5Hz po obrtaju.
Filter ima vrlo strmu karakteristiku pa je čak i s trimerom potrebna vrlo laka ruka.

Dobar test filtera je kada lagano okrećeš potenciometar od jedne do druge granice i pri tom izlazni signal prođe kroz minimum. Tada si siguran da je signal u propusnom opsegu.
Edit: Test možeš da izvedeš i tako što potenciometar postaviš na pola hoda, a zatim lagano podešavaš frekvenciju generatora dok ne dobiješ minimum na oslioskopu. Iskra (pretpostavljam da je MA 3604) se da preciznije podesiti nego tvoj potenciometar.

Smetnje su poseban problem. Proveri sve lemove i vodi signal koaksijalnim kablom jer ako filter dobro radi, na njegovom izlazu se očekuje napon niži od 1mV.

Pozdrav
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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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