Now mind you some of my example are 30 years old and it bet things have improved for the better.ĭo we even make transistors in the us any more? Laughs. I think there were other manufacture transistor who had the same issues and I think the company finally went with Motorola power transistors. Nte were not allowed if I recall the nte part heated up to point where the pcb board discolored and the transistor would kind of desolder themsleves and shake loose. If this Cnc machine was build better I would be willing to bet that the nte parts would have worked. There was a power supply for a French Cnc machine that blew a whole string 12 or 16 nte power transistors. There was naval radar scope power supplies that didn't like nte parts. Yes they still worked but the generated more heat. With small signal stuff I have never had issues with nte parts but I have had higher power transistor generate more heat than expected. Zenerice koje smanjuju napon za LM393 su zamenjene i izmeu 4 i 8 pina dobijam 14,2V. Celo pojaalo napajam sa +-27V, pa se pitam da li je to dovoljno. I think they having frequency response issues. Re: Pojaalo D klase sa IRF540/IRF9540 100W Nisam bio precizan. It sounds like the audio guys still don't like nte parts. So I was curious and searched on nte bad parts. Nte back in the day (mid 80's)could be hit or miss.
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