Products > Test Equipment
AliExpress IT1008 injection transformer
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georgeharker:
I’m going to be doing some analysis on a synchronous buck dc dc power supply and am looking for a signal transformer.

I am aware of the DIY solutions which look amazing but I fear my side project count is already too large, and I am aware of the several commercial options which are pretty pricey.

I came across this:

https://www.aliexpress.us/item/3256804910302075.html?gatewayAdapt=glo2usa4itemAdapt

And for the price I’m tempted to give it a shot. Anyone have any thoughts / experiences?

coromonadalix:
and you are aware  that many things from Ali could be not as advertized .... sure you have some warranties if the shipping doesn't take too long
georgeharker:
Absolutely. I’m just curious if it’s worth the punt to see if it would do the job. Could never arrive or could not work as advertised. I’d definitely measure before using.
georgeharker:
Ok. Bit the bullet on side projects and wound a core myself. It’s looking decent. Current measurements say -3db at about 25Hz and pretty flat out to 1MHz rolling off to -2db at about 4MHz. But I’ll wait until I’ve housed it with proper terminations and premature before posting results properly.
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