ex.escu Posted March 25, 2020 Share Posted March 25, 2020 Un amplificator interesant din anii "70. Quote Link to comment Share on other sites More sharing options...
ex.escu Posted March 30, 2020 Share Posted March 30, 2020 Un punct de vedere din anii "80 privind alimentarea amplificatoarelor audio. Cherry mutual inductance distortion.pdf Quote Link to comment Share on other sites More sharing options...
ex.escu Posted April 24, 2020 Share Posted April 24, 2020 Reluare si completare, amplificatorul publicat de Dl. dr.Wiederhold in r.f.e in nr.14/1977 reluat ulterior in radio nr.4/1978. wiederhold77.djvu Quote Link to comment Share on other sites More sharing options...
ex.escu Posted April 26, 2020 Share Posted April 26, 2020 Un amplificator inspirat partial de cel de mai sus. Quote Link to comment Share on other sites More sharing options...
ex.escu Posted April 26, 2020 Share Posted April 26, 2020 Un amplificator publicat in Radio nr.7/1983, inspirat tot de amplificatorul lui Wiederhold. Quote Link to comment Share on other sites More sharing options...
ex.escu Posted April 27, 2020 Share Posted April 27, 2020 Un amplificator suedez aparut in anii "70, publicat in Radio&Electronics/Sweden, in 1975, inaintea celor popularizate de Dl.Leach si Dl.Palouda; scuze pentru calitate, nu au fost alte variante disponibile. Quote Link to comment Share on other sites More sharing options...
sadang Posted December 14, 2020 Share Posted December 14, 2020 On 5/7/2020 at 11:58 PM, aluneanu said: Salut pe toata lumea de aici ! Nu stiu daca am postat unde trebuie ,dar vreau sa rog pe cei ce au schema amplificatorului AM1040 ,mono ,fabricat de Electronica Industriala sa ma ajute cu postarea acesteia . Multumesc ! Mai bine mai tarziu decat niciodata. Am postat cartea amplificatorului aici: Quote Link to comment Share on other sites More sharing options...
Усилитель Posted February 10, 2021 Share Posted February 10, 2021 (edited) https://www.eserviceinfo.com/index.php?what=search2&searchstring=Denon+PMA+980R.pdf https://joes-tech-blog.blogspot.com/2017/01/fixing-denon-pma-980r-input-volume.html https://melius.club/topic/297828-denon-pma-980r/ Edited February 10, 2021 by Усилитель Quote Link to comment Share on other sites More sharing options...
Усилитель Posted February 22, 2021 Share Posted February 22, 2021 (edited) Amplificator cu schema asemanatoare si mai simpla se putea cumpara sub forma de kit IPRS ,piese + placa circuit imprimat pe vremea lui Ceasca ,"amplificator 10W " mergea mai mult cu tensiune de alimentare mai mare , am montat in prostie la ele , aveau semireglabil intre bazele prefinalilor BD 139-140 pt reglat curent de mers in gol.Sunau bine , poate are cineva macar placuta ramasa... Si acum am unul stereo functional ,facut la 16 ani.....( alimentat la 36V ) Gasesti aici totul: https://electrokits.ro/kituri-electronice-diy-c-2/amplificator-10w-iprs-baneasa-prospect-8109-p-603.html?page=all Edited February 22, 2021 by Усилитель Quote Link to comment Share on other sites More sharing options...
validae Posted March 17, 2021 Share Posted March 17, 2021 Schema e aici: https://elektrotanya.com/pioneer_a-616-s_sch.pdf/download.html Quote Link to comment Share on other sites More sharing options...
alexy Posted July 25, 2022 Share Posted July 25, 2022 Amplificator Dorofeev 2022 Caracteristici: — putere: 2*100w (4ohm), punte 1*200w (8ohm); - alimentare + 35 / -35v; - protectie curent (8A); - protectia AC de aparitia unei tensiuni constante la iesire; — dimensiunea plăcii 50*100mm; - gama de frecvente de functionare: 30Hz - 35kHz (-1dB). — dimensiunea plăcii 50*100mm; - THD: 0,009% (1kHz 90W 4 ohmi); - factor de amortizare amplificator: 1886 (4 ohmi); - factor de amortizare amplificator + releu + fire: 87 (4 ohmi); - tensiune constantă la ieșire: nu mai mult de 2mV. Masuratori: SOI 1 kHz 4 ohm la o putere de 0,1-90 W, nu mai mult de 0,016%; SOI 5 kHz 4 ohm la o putere de 0,1-90 W, nu mai mult de 0,02%; SOI 10 kHz 4 ohm la o putere de 0,1-90 W, nu mai mult de 0,037%. SOI 1kHz 1W = 0,007-0,003% la un curent de repaus de 10-100mA, respectiv; SOI 20kHz 1W = 0,07-0,041% la un curent de repaus de 10-100mA, respectiv. pentru mai multe informatii aici http://darkamp.ru/usilitel-dorofeeva-2022/ Quote Link to comment Share on other sites More sharing options...
franzm Posted October 14, 2022 Share Posted October 14, 2022 (edited) Hai sa mai urcam si topicul asta oleaca: https://www.elektor.de/amfile/file/download/file/2528/product/10860/ https://www.elektormagazine.com/labs/fortissimo-100 De remarcat ca etajul final poate fi folosit si de unul singur, atacat cu transformator. Cu sau fara reactie negativa. Edited October 14, 2022 by franzm Quote Link to comment Share on other sites More sharing options...
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