gigiones Posted December 6, 2011 Share Posted December 6, 2011 va rog frumos......un echivalent ! Se afla montata intr-o punte redresoare din alimentarea unui radio receptor sovietic VEF 221 !!!???Arata rau saraca, parca este muscata din ea ...vreun paianjen, coropisnita .....etc Multumesc anticipat ! Link to comment
Spitfire Posted December 6, 2011 Share Posted December 6, 2011 1N4001 sau orice dioda redresoare cu Tinv=50V, curent max. 1A. Link to comment
miron1947 Posted December 6, 2011 Share Posted December 6, 2011 va rog frumos......un echivalent !Vedeti in tabel(cel din partea de jos a paginii).__208.pdf Link to comment
gigiones Posted December 7, 2011 Author Share Posted December 7, 2011 Multumiri pentru @Spitfire si @miron1947 (tare in soviete) care sar mereu in ajutor.Am schimbat puntea redresoare inlocuind toate diodele -cu 1n4007- si este ok, am tensiunile bune, foarte putin peste valoarea din schema.!!!Pentru cei care isi mai baga nasul in vechile rusesti, atentie k acestia marcheaza invers diodele-cel putin asha am gasit eu pana acum-.!! Link to comment
gigiones Posted December 7, 2011 Author Share Posted December 7, 2011 pt @ miron1947 conform discutiei pe mp Link to comment
miron1947 Posted December 7, 2011 Share Posted December 7, 2011 Masurati tensiunile +/- si vedeti daca sunt egale iar la iesirea de difuzor ce tensiune aveti fata de masa. Link to comment
gigiones Posted December 7, 2011 Author Share Posted December 7, 2011 am masurat u de iesire : am +15; -15V care pot fi reglate f usor din trimeri. Problema , daca este !!!!, ....in xp1 (1) nu am -22v ci 24 spre 25 v. O sa masor si pe cea de la iesirea de difuzor dupa ce il desfac, si revin . Link to comment
miron1947 Posted December 7, 2011 Share Posted December 7, 2011 nu am -22v ci 24 spre 25 v.Dar pe ramura + este la fel? Link to comment
gigiones Posted December 7, 2011 Author Share Posted December 7, 2011 masurat u si pe difuri 0v pentru o idee mai buna, desi cred k aveti http://rw6ase.narod.ru/000/rez2/jupiter_mk106.html Link to comment
gigiones Posted December 7, 2011 Author Share Posted December 7, 2011 nu am -22v ci 24 spre 25 v.Dar pe ramura + este la fel? nu este decat o iesire cu -22v pe xp1 care pleaca din placa de alimentare Link to comment
miron1947 Posted December 7, 2011 Share Posted December 7, 2011 nu este decat o iesire cu -22vEu vad mai multe. Link to comment
gigiones Posted December 7, 2011 Author Share Posted December 7, 2011 nici "sa fiu impuscat" nu va, daca or fi sub forma idem xp1 .......in rusa ,,....mor nevinovat ! Link to comment
miron1947 Posted December 7, 2011 Share Posted December 7, 2011 Am gresit, are condensator de iesire(2000uF) dar nu-l depistasem. Link to comment
gigiones Posted December 7, 2011 Author Share Posted December 7, 2011 de pe siteul lor, cel pe care vi l-am trimissi pe mine m-a uimit , fiiindca sunt si dc si ac pe placa de alimentare Link to comment
miron1947 Posted December 7, 2011 Share Posted December 7, 2011 Vedti daca aveti 1/2 din tensiunea de alimentare(-48V) a finalilor, pe C1 si respectiv C2,(polul negativ).Tensiunea alternativa este utilizata la afisajul fluorescent. Link to comment
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now