YT video making a transformer from scratch - UK Vintage Radio Repair and Restoration Discussion Forum

McMurdo · 17th Nov 2025, 3:54 pm

Here's an interesting video showing a factory making AC voltage stabilisers...the old fashioned way.

From making the transformer to assembling the finished product, it's all there.
I don't think the forum transformer-winders will learn much.

https://www.youtube.com/watch?v=1sqe4ltMa5o

Vintage Engr · 17th Nov 2025, 4:20 pm

I note the great care taken with both electrical & mechanical safety...
Especially note most of the machinery, where the mains cable enters the machine... No insulating bushes, inner cores touching metal framework!

Then there's the high-quality? insulating layers between windings on the bobbins!

I once visited an establishment in Sharjah, that was very similar. Very enterprising.

David.

m0cemdave · 18th Nov 2025, 12:46 pm

Another power transformer video here:
https://www.youtube.com/watch?v=Glfmx2-YxJA

There are a lot of similar scary videos here:
https://www.youtube.com/@amazingmechanics544/videos

If they don't convince you to buy only certificated products from reputable suppliers, nothing will...

Vintage Engr · 18th Nov 2025, 1:35 pm

Despite all the obvious H&S issues etc, there are amazing skills being shown.

I used to live vey close to Hawker Siddely Power Transformers' factory, just a bit different in the working conditions!

David.

retailer · 28th Nov 2025, 10:35 pm

There's certainly some 'do not try this at home' stuff in the video however it does show the process of winding on a tube former quite well - as opposed to winding on a bobbin - the operator makes it look easy - strange though that first time I tried winding on a tube former was a real learning experience and not nearly as easy as the video makes it look.

17th Nov 2025, 3:54 pm	#1
McMurdo Dekatron Join Date: Jun 2009 Location: Staffordshire Moorlands, UK. Posts: 5,787	YT video making a transformer from scratch Here's an interesting video showing a factory making AC voltage stabilisers...the old fashioned way. From making the transformer to assembling the finished product, it's all there. I don't think the forum transformer-winders will learn much. https://www.youtube.com/watch?v=1sqe4ltMa5o __________________ Kevin

17th Nov 2025, 4:20 pm	#2
Vintage Engr Octode Join Date: Jan 2008 Location: Shrewsbury, Shropshire, UK. Posts: 1,129	Re: YT video making a transformer from scratch I note the great care taken with both electrical & mechanical safety... Especially note most of the machinery, where the mains cable enters the machine... No insulating bushes, inner cores touching metal framework! Then there's the high-quality? insulating layers between windings on the bobbins! I once visited an establishment in Sharjah, that was very similar. Very enterprising. David.

18th Nov 2025, 12:46 pm	#3
m0cemdave Octode Join Date: Feb 2009 Location: Bletchley, Buckinghamshire, UK. Posts: 1,436	Re: YT video making a transformer from scratch Another power transformer video here: https://www.youtube.com/watch?v=Glfmx2-YxJA There are a lot of similar scary videos here: https://www.youtube.com/@amazingmechanics544/videos If they don't convince you to buy only certificated products from reputable suppliers, nothing will...

18th Nov 2025, 1:35 pm	#4
Vintage Engr Octode Join Date: Jan 2008 Location: Shrewsbury, Shropshire, UK. Posts: 1,129	Re: YT video making a transformer from scratch Despite all the obvious H&S issues etc, there are amazing skills being shown. I used to live vey close to Hawker Siddely Power Transformers' factory, just a bit different in the working conditions! David.

28th Nov 2025, 10:35 pm	#5
retailer Heptode Join Date: May 2005 Location: Adelaide, South Australia Posts: 635	Re: YT video making a transformer from scratch There's certainly some 'do not try this at home' stuff in the video however it does show the process of winding on a tube former quite well - as opposed to winding on a bobbin - the operator makes it look easy - strange though that first time I tried winding on a tube former was a real learning experience and not nearly as easy as the video makes it look.