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| To: | RSGB LF Group at blacksheep <[email protected]> |
|---|---|
| Subject: | LF: N28 ferrite material useable on MF ? |
| From: | wolf_dl4yhf <[email protected]> |
| Date: | Sat, 20 Jul 2013 14:50:27 +0200 |
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Greetings all,Does anyone have old databooks of Siemens (now Epcos) ferrite materials at hand ? I'm looking for information of N28 material, after discovering a bunch of pot cores in the junkbox. 25 mm diameter, 16 mm height, and an AL value of approx. 1 uH per turn squared. The label carries the 'Siemens and Halske' logo, so these cores must be quite old. The plan is to use one of them as transformer to feed the gate of a MOSFET which requires floating ground (source not connected to GND, but to the drain of another MOSFET). Is this old N28 material usable at a few hundred kHz, and what about the max flux in the core / max density / saturation ? Best regards, Wolf DL4YHF . |
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