Hello Stefan,
Thanks, ordered 3, so get free shipping, it was cheaper than ordering
2 and paying shipping :)
Thursday, May 9, 2019, 2:34:58 PM, you wrote:
> Hi Chris,
> I would not recommend the one you selected because it has an unnecessary
> large inner diameter and a lower height, thus a lower AL value.
> I think this is the same one that i recommended from Bürklin:
> https://www.mouser.co.uk/ProductDetail/EPCOS-TDK/B64290A0699X830?qs=sGAEpiMZZMs2JV%252BnT%2FvX8Df1W1GtRs010YpcsJh6dvk%3D
> It is also cheaper.
> There are other materials available, such as T65, T38, T37, offering a
> higher AL value. Maybe these are even more suitable at that sort of
> frequency but i didn't spend too much time to select the best core for
> each frequency. I use the N30 material from 1 kHz to MF at high power (
>> 1 kW for one core) without problems. So this is what i recommend. It
> will work.
> 73, Stefan
> PS: If you want to bridge one of Paul's 2x 7.2 kW amps, you may need two
> of them ;-)
> PPS: You may want to build two orthogonal ground loops then, one per
> channel. With SpecLab you can then drive each channel separately and so
> you can build a software rotatable loop by aligning the phase between
> the channels, while staying into the shack when its cold and/or rainy :-)
> Am 09.05.2019 14:42, schrieb Chris Wilson:
>>
>> Hello Stefan,
>>
>> I am now on to building a matching transformer but it seems Buerklin
>> have a minimum order of 60 units! I have found this bigger core at
>> Mouser, could I use that instead please?
>>
>> https://www.mouser.co.uk/ProductDetail/EPCOS-TDK/B64290L0730X830?qs=4l9S5vBWkUJtsO6ZFRCS4g%3D%3D
>>
--
Best regards,
Chris mailto:[email protected]
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