Hats off to you Andy, that is no easy task winding that Tek TFRM. You have made me realise you have to take your time on the actual winding process and keep checking your work constantly. I have a similar filing system of note taking, a bit here and a bit there, not ideal so good advice to keep them all in one notepad or similar. Looking forward to see how this progresses. : )
The insulation on the wire can withstand the voltage - except when pinhole defects in the magnet wire insulation occur adjacent to each other. There’s not much you can do about that with turns side by side on the same layer. But between layers, insulation such as what you showed early in the video would be appropriate. Now, if this is a one off, and not intended for larger production, you might be inclined to take your chances.
@@diabolicalartificer - forty years ago I worked during college at a custom transformer manufacturer. After college, I was an electronics engineer working at a CRT display manufacturer. Lots of transformer experience at both of those jobs. So much that a large custom transformer manufacturer whose main market was the TV industry asked me about some of the tests we required of parts we were getting from them; our parts were failing under test at their factory (pinhole insulation failures), other customers of theirs were returning failed parts and they wanted to learn how to better catch the impending failures at the factory. And when we returned parts because the number of turns was out of spec, their engineer took apart the first few to confirm our test report; after the first several were confirmed that our test was catching legitimate out of spec parts, they just accepted all of our returns. Your transformer is looking like it will work just fine; layering insulation is definitely a good idea.
@@diabolicalartificer -if you do have questions feel free to ask. My only comment at this time is safety standard related. Although I am in the USA, the UL and NIST standards eventually started to become as strict as European safety standards. I don’t believe the transformer as you are building it wouldn’t meet today’s safety standards. But I don’t work for the safety agencies ;)
I've heard that a few times, however if I email Tektronix and ask for a replacement tfmr I doubt they'll honer the warranty. I have no POP & it's unlikely they have loads of 500 series etc tfmr's on a shelf somewhere. Also the shipping from the USA would be prohibitively expensive. TFW.
Hats off to you Andy, that is no easy task winding that Tek TFRM. You have made me realise you have to take your time on the actual winding process and keep checking your work constantly.
I have a similar filing system of note taking, a bit here and a bit there, not ideal so good advice to keep them all in one notepad or similar.
Looking forward to see how this progresses. : )
Thanks, it is slow going but the only way to proceed. TFW.
It looks really good so far! Great attention to detail too 👍
Thanks & TFW.
Very even and pretty windings considering the thick wire you're using and the fact that you don't have a winding machine.
Thanks. Actually the thicker gauge is easier to wind neatly. Not sure I'll be able to keep that consistency with the smaller gauges.
The insulation on the wire can withstand the voltage - except when pinhole defects in the magnet wire insulation occur adjacent to each other.
There’s not much you can do about that with turns side by side on the same layer. But between layers, insulation such as what you showed early in the video would be appropriate.
Now, if this is a one off, and not intended for larger production, you might be inclined to take your chances.
Thank you for your input. Do you wind? Obviously. Anymore advice would be most welcome.
@@diabolicalartificer - forty years ago I worked during college at a custom transformer manufacturer. After college, I was an electronics engineer working at a CRT display manufacturer. Lots of transformer experience at both of those jobs. So much that a large custom transformer manufacturer whose main market was the TV industry asked me about some of the tests we required of parts we were getting from them; our parts were failing under test at their factory (pinhole insulation failures), other customers of theirs were returning failed parts and they wanted to learn how to better catch the impending failures at the factory. And when we returned parts because the number of turns was out of spec, their engineer took apart the first few to confirm our test report; after the first several were confirmed that our test was catching legitimate out of spec parts, they just accepted all of our returns.
Your transformer is looking like it will work just fine; layering insulation is definitely a good idea.
@@diabolicalartificer -if you do have questions feel free to ask.
My only comment at this time is safety standard related. Although I am in the USA, the UL and NIST standards eventually started to become as strict as European safety standards. I don’t believe the transformer as you are building it wouldn’t meet today’s safety standards. But I don’t work for the safety agencies ;)
I had an old tek scope and the manual stated the transformer was warranted for life.
I've heard that a few times, however if I email Tektronix and ask for a replacement tfmr I doubt they'll honer the warranty. I have no POP & it's unlikely they have loads of 500 series etc tfmr's on a shelf somewhere. Also the shipping from the USA would be prohibitively expensive. TFW.
looks fun
Aye, I'm overdosing on fun : )