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Looks not so bad but it can be improved a lot 70 +/- means 500 watts maybe 600 in 4 ohms with thd 1% At 5 % I could have 1 kw The idea is not to have hundreds of final transistors... It will not increase your power just if you go down... In 2 ohms... Which is not reasonable 8 ohms sounds the best. Limit is 4 And there are better transistors than what you show. There are Mosfets with enormous ampers. My preffered as bipolar ( normal transistors) are Mj 15003 and 15004, 250watts, 140v 30 A
And... Forgot to say Power supply... Yoy need a tougher one. Mine, on the last project, had primary coil at 3 Kw, 1.7 mm OD ( outer diameter) and secondary 3 mm - toroidal Bridge 100A and filter 20 pcs 10000 microfarads / 100v ( 10 + 10 ) Lazy start made.... Direct start = 25A😮
Ciao potreste progettare dei sistemi/circuiti elettronici facendo dei tutorial e postandoli su YoCiao potreste progettare dei sistemi/circuiti elettronici facendo dei tutorial e postandoli su RU-vid mettendo passo passo i componenti sulla protoboard e basetta spiegano contemporaneamente il funzionamento del circuito in modo che possa riproporlo a casa? grazie Luca uTube mettendo passo passo i componenti sulla protoboard e basetta spiegano contemporaneamente il funzionamento del circuito in modo che possa riproporlo a casa? grazie Luca
According to this circuit, it has 3 pairs of power transistors these translators are rated 150W each, so we have this formula; we have power supply of 70V, ampere =12A, 4ohm load, a stable sine wave input, U = RMS voltage , U(DC)/√2. Therefore at 70V & 12A with 4ohm load will be U= 70/√2 = 49.49 then square this figure; 49.49×49.49 = 2449.26, divide by 4ohm load; 2449.26÷4 = 612.31. Then we get V=70V ÷ L=4R ÷ A = 12A × 612.31; U = 70÷4÷12×612.31 =894.41 RMS approximately to 900W RMS , Therefore RMS is 900W because we used 70V 12A power supply & we really measured it so to produce low wattage as you have said it could be the low voltage & higher ohm load either 8ohm or higher, the more voltage applied to amp the more the output as far as you don't exceed the limit or the recommended voltage of transistors, thanks for that feedback & watching
Dear Jime It is me your friend Valentino. I like all your projects I'm your estudent and follower God Bless you and your family. I will be in touch soon your friend Valentino Salgado. Adiós Amigo 😊
